Dr. Rene A. Castillo
- Gender: Male
- Experience: 34 years
- Graduation year: 1987
- Sole propriator: No
- NPI: 1134186166
Dr. Rene A. Castillo MD
Oncologist
He is located at 4101 James Casey Street Suite 100 in Austin, TX 78745. Can help patients with the following: Bile Duct Cancer, Esophageal Cancer, Hemophilia, Neuroblastoma, Stomach Cancer, Testicular Cancer. His National Provider Identifier (NPI) number is 1134186166. Appointment can be made via the phone number (512) 447-2202. He also has a website where you can get more information. The website can be found at https://www.texasoncology.com/doctors/rene-castillo. He is affiliated with 4 practices and 3 hospitals.
Conditions treated
Dr. Rene Castillo, being an oncologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Rene A. Castillo.
- Anal Cancer
- Anemia
- Basal Cell Carcinoma
- Beta Thalassemia
- Bile Duct Cancer
- Bladder Cancer
- Blood Clots
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer
- Carcinoid Tumor
- Carcinoma
- Cervical Cancer
- Colon Cancer
- Deep Vein Thrombosis (DVT)
- Esophageal Cancer
- Gallbladder Cancer
- Glioma
- Head and Neck Cancer
- Heart Disease
- Hemophilia
- Hodgkin's Disease
- Idiopathic Thrombocytopenic Purpura (ITP)
- Kidney Cancer
- Larynx Cancer
- Leukemia
- Liver Cancer
- Lung Cancer
- Melanoma
- Mesothelioma
- Multiple Myeloma
- Nasopharyngeal Cancer
- Neoplasm
- Neuroblastoma
- Neutropenia
- Non-Hodgkin's Lymphoma (NHL)
- Oral Cancer
- Ovarian Cancer
- Pancreatic Cancer
- Penis Cancer
- Pernicious Anemia
- Pheochromocytoma (PCC)
- Polycythemia
- Prostate Cancer
- Pulmonary Embolism (PE)
- Retinoblastoma
- Salivary Gland Cancer
- Sarcoma
- Sickle Cell Anemia
- Skin Cancer
- Stomach Cancer
- Testicular Cancer
- Thalassemia
- Thrombocytopenia
- Thymoma
- Thyroid Cancer
- Urethral Cancer
- Uterine Cancer
- Vaginal Cancer
Procedures Performed by Dr. Rene A. Castillo
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Rene A. Castillo as in-network for the following 2026 plans.
Health plans
Ambetter from Superior HealthPlan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 12 plans from Ambetter from Superior HealthPlan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options | EPO · Silver | Preferred | Accepting new patients |
| Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
Ambetter from Superior HealthPlan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 6 plans from Ambetter from Superior HealthPlan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Complete VALUE Gold (3 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Focused VALUE Silver (3 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Focused VALUE Silver + Vision + Adult Dental (3 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Standard Gold VALUE (3 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Standard Silver VALUE (3 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Standard Silver VALUE + Vision + Adult Dental (3 plan variants) | HMO · Silver | Preferred | Accepting new patients |
Blue Cross and Blue Shield of Texas
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 25 plans from Blue Cross and Blue Shield of Texas
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Advantage Bronze HMO℠ 204 (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Bronze HMO℠ 301 (14 plan variants) | HMO · Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Bronze HMO℠ Standard (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ 206 (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ 603 (14 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Gold HMO℠ Standard (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ 303 (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ 305 (27 plan variants) | POS · Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Bronze℠ Standard (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ 203 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ 803 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Gold℠ Standard (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ 202 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ 605 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Plus Silver℠ Standard (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Security HMO℠ 200 (27 plan variants) | HMO · Catastrophic | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ 205 (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ 801 (14 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| Blue Advantage Silver HMO℠ Standard (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients |
| MyBlue Health Bronze℠ 402 (13 plan variants) | HMO · Expanded Bronze | Myblue Health | Accepting new patients |
| MyBlue Health Bronze℠ Standard (11 plan variants) | HMO · Expanded Bronze | Myblue Health | Accepting new patients |
| MyBlue Health Gold℠ 403 (13 plan variants) | HMO · Gold | Myblue Health | Accepting new patients |
| MyBlue Health Gold℠ Standard (11 plan variants) | HMO · Gold | Myblue Health | Accepting new patients |
| MyBlue Health Silver℠ 405 (13 plan variants) | HMO · Silver | Myblue Health | Accepting new patients |
| MyBlue Health Silver℠ Standard (11 plan variants) | HMO · Silver | Myblue Health | Accepting new patients |
CHRISTUS Health Plan
Network data as of Jan 1, 1900, as reported by the insurer.
Show all 18 plans from CHRISTUS Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Catastrophic (3 Free PCP visits) | HMO · Catastrophic | Preferred | Accepting new patients |
| CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold Essential ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold Essential + Dental & Vision ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Silver Essential 70 ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Silver Essential 70 + Dental & Vision ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Standard Expanded Bronze ($0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Standard Gold ($0 Virtual Urgent Care) | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Standard Silver 70 ($0 Virtual Urgent Care) | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Value Bronze (3 Free PCP Visits, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Value Bronze + Dental & Vision (3 Free PCP Visits, $0 Virtual Urgent Care) | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Value Silver 70 ($0 Virtual Urgent Care) | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Value Silver 70 + Dental & Vision ($0 Virtual Urgent Care) | HMO · Silver | Preferred | Accepting new patients |
Cigna Healthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 22 plans from Cigna Healthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Connect Bronze 5750 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze 8500 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze CMS Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze DFW 6000 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze DFW 8500 Indiv Med Deductible | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Bronze DFW CMS Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect Gold 1400 Indiv Med Deductible | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold 3000 Indiv Med Deductible | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold CMS Standard | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold DFW 1400 Indiv Med Deductible | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold DFW 2800 Indiv Med Deductible | HMO · Gold | Preferred | Accepting new patients |
| Connect Gold DFW CMS Standard | HMO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect myDiabetesCare Bronze DFW | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Connect myDiabetesCare Gold | HMO · Gold | Preferred | Accepting new patients |
| Connect myDiabetesCare Gold DFW | HMO · Gold | Preferred | Accepting new patients |
| Connect Silver 3000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver 4000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver CMS Standard | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver DFW 3000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver DFW 4000 Indiv Med Deductible | HMO · Silver | Preferred | Accepting new patients |
| Connect Silver DFW CMS Standard | HMO · Silver | Preferred | Accepting new patients |
Harbor Health
Network data as of Sep 14, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Harbor Health G0 $0 Deductible $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health G1S $30 PCP $30 Mental Health Office Visit $30 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health S1 $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Silver | Preferred | Accepting new patients |
| Harbor Health S1S $40 PCP $40 Mental Health Office Visit $40 Express Care | HMO · Silver | Preferred | Accepting new patients |
Imperial Insurance Companies, Inc.
Network data as of Sep 16, 2025, as reported by the insurer.
Show all 7 plans from Imperial Insurance Companies, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Imperial Preferred Bronze | HMO · Bronze | Preferred | Accepting new patients |
| Imperial Preferred Gold | HMO · Gold | Preferred | Accepting new patients |
| Imperial Preferred Gold Zero | HMO · Gold | Preferred | Accepting new patients |
| Imperial Preferred Silver | HMO · Silver | Preferred | Accepting new patients |
| Imperial Standard Bronze | HMO · Expanded Bronze | Standard | Accepting new patients |
| Imperial Standard Gold | HMO · Gold | Standard | Accepting new patients |
| Imperial Standard Silver | HMO · Silver | Standard | Accepting new patients |
Moda Health Plan, Inc.
Network data as of Sep 12, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Moda Select Texas Bronze 8700 ($0 Virtual Urgent Care through CirrusMD) | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Select Texas Bronze HDHP 7500 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Select Texas Standard Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Select Texas Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Moda Select Texas Standard Silver | EPO · Silver | Preferred | Accepting new patients |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 11 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Gold Classic Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Diabetes Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Guided Care (8 plan variants) | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Breathe Easy with Enhanced COPD Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits Guided Care (8 plan variants) | HMO · Silver | Preferred | Accepting new patients |
Sendero Health Plans, Local Nonprofit
Network data as of Sep 14, 2026, as reported by the insurer.
Show all 14 plans from Sendero Health Plans, Local Nonprofit
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Sendero Health Austin512 Silver / $40 PCP / $75 Specialist / $15 Generic Drugs / $0 Deductible | HMO · Silver | Non Preferred | Accepting new patients |
| Sendero Health Austin512 Silver / $40 PCP / $75 Specialist / $15 Generic Drugs / $0 Deductible | HMO · Silver | Preferred | Accepting new patients |
| Sendero Health Capital Silver / $40 PCP / $80 Specialist / $20 Generic Drugs | HMO · Silver | Non Preferred | Accepting new patients |
| Sendero Health Capital Silver / $40 PCP / $80 Specialist / $20 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Sendero Health Hill Country Gold / $30 PCP / $60 Specialist / $15 Generic Drugs | HMO · Gold | Non Preferred | Accepting new patients |
| Sendero Health Hill Country Gold / $30 PCP / $60 Specialist / $15 Generic Drugs | HMO · Gold | Preferred | Accepting new patients |
| Sendero Health Original Silver / $20 PCP + 2 $0 PCP Visits / $10 Generic Drugs | HMO · Silver | Non Preferred | Accepting new patients |
| Sendero Health Original Silver / $20 PCP + 2 $0 PCP Visits / $10 Generic Drugs | HMO · Silver | Preferred | Accepting new patients |
| Sendero Health Preferred Bronze / $25 PCP / $75 Specialist / $22 Generic Drugs | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Sendero Health Preferred Bronze / $25 PCP / $75 Specialist / $22 Generic Drugs | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Sendero Health Quality Care Bronze High Deductible / $50 PCP / $25 Generic Drugs / $100 Specialist | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Sendero Health Quality Care Bronze High Deductible / $50 PCP / $25 Generic Drugs / $100 Specialist | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Sendero Health Real Gold / $350 Deductible | HMO · Gold | Non Preferred | Accepting new patients |
| Sendero Health Real Gold / $350 Deductible | HMO · Gold | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 14 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential ($0 Virtual Urgent Care) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard+ (Dental + Vision) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value ($0 Virtual Urgent Care) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ ($0 Virtual Urgent Care, Dental + Vision) | HMO · Silver | Non Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 11 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Sanitas Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Sanitas Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Sanitas Bronze Standard | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Sanitas Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Sanitas Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Sanitas Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Sanitas Gold Standard | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Sanitas Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Sanitas Silver Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Sanitas Silver Standard | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Sanitas Silver Value ($0 Virtual Urgent Care) | HMO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Rene A. Castillo is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Rene A. Castillo is enrolled to bill Medicare as a Practitioner - Medical Oncology (also registered under: Practitioner - Hematology/oncology, Practitioner - Internal Medicine) .
Bills through: Texas Oncology Pa
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
Graduated in 1987Other ways to reach out
- Website: https://www.texasoncology.com/doctors/rene-castillo
- Facebook: http://www.facebook.com/TexasOncology
Additional Specialities
- Hematologist
- Hematology and Oncology Specialist
Affiliated practices
Affiliated hospitals
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Questions & Answers
What conditions does Dr. Rene Castillo treat?
Dr. Rene Castillo provides treatment for Bile Duct Cancer, Esophageal Cancer, Hemophilia, Neuroblastoma, Stomach Cancer, Testicular Cancer. For the full list see this list.
Does Dr. Rene Castillo have affiliation with practices?
Dr. Rene Castillo is affiliated with Rowlett Regional Cancer Center. For the full list of practices see this list.
Where can you meet with Dr. Rene Castillo?
Dr. Rene Castillo's office is located at 4101 James Casey Street Suite 100 in Austin, TX 78745.
Has Dr. Rene Castillo affiliation with hospitals?
Dr. Rene Castillo is affiliated with ST DAVID'S SOUTH AUSTIN MEDICAL CENTER. For the full list of hospitals see this list.
Does Dr. Rene Castillo accept patients with CHRISTUS Health Plan?
Yes, Dr. Rene Castillo is listed in-network for CHRISTUS Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.