Dr. Robert A. Marciniak
- Gender: Male
- Experience: 29 years
- Graduated from: Harvard Medical School
- Graduation year: 1992
- Sole propriator: No
- NPI: 1700889201
Dr. Robert A. Marciniak M.D.
Oncologist
He is located at 7979 Wurzbach Road in San Antonio, TX 78229. Can help patients with the following: Brain Cancer, Edema, Headache, Influenza, Pancreatic Cancer, Pheochromocytoma (PCC). His National Provider Identifier (NPI) number is 1700889201. Appointment can be made via the phone number (210) 450-1000. He is affiliated with 2 practices.
Conditions treated
Dr. Robert A. Marciniak, 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. Robert A. Marciniak.
- Abdominal Pain
- Acute Pain
- Anal Cancer
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Basal Cell Carcinoma
- Bile Duct Cancer
- Bladder Cancer
- Bladder Control
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer
- Carcinoid Tumor
- Carcinoma
- Cervical Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Colon Cancer
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Esophageal Cancer
- Fever
- Gallbladder Cancer
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Glioma
- Head and Neck Cancer
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hodgkin's Disease
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Larynx Cancer
- Leukemia
- Liver Cancer
- Lung Cancer
- Melanoma
- Mesothelioma
- Migraine
- Nasopharyngeal Cancer
- Nausea and Vomiting
- Neoplasm
- Neuroblastoma
- Non-Hodgkin's Lymphoma (NHL)
- Obesity
- Oral Cancer
- Osteoporosis
- Ovarian Cancer
- Pancreatic Cancer
- Penis Cancer
- Peptic Ulcer
- Pheochromocytoma (PCC)
- Polycythemia
- Prescription Refill
- Prostate Cancer
- Retinoblastoma
- Salivary Gland Cancer
- Sarcoma
- Skin Cancer
- Stomach Cancer
- Testicular Cancer
- Thymoma
- Thyroid Cancer
- Urethral Cancer
- Urethritis
- Urinary Tract Infection (UTI)
- Uterine Cancer
- Vaginal Cancer
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Robert A. Marciniak as in-network for the following 2026 plans.
Health plans
Blue Cross and Blue Shield of Texas
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 19 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 at some locations |
| Blue Advantage Bronze HMO℠ 301 (14 plan variants) | HMO · Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Bronze HMO℠ Standard (27 plan variants) | HMO · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ 206 (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ 603 (14 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Gold HMO℠ Standard (27 plan variants) | HMO · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ 303 (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ 305 (27 plan variants) | POS · Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Bronze℠ Standard (27 plan variants) | POS · Expanded Bronze | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ 203 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ 803 (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Gold℠ Standard (27 plan variants) | POS · Gold | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ 202 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ 605 (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Plus Silver℠ Standard (27 plan variants) | POS · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Security HMO℠ 200 (27 plan variants) | HMO · Catastrophic | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ 205 (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ 801 (14 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
| Blue Advantage Silver HMO℠ Standard (27 plan variants) | HMO · Silver | Blue Advantage HMO | Accepting new patients at some locations |
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. Robert A. Marciniak 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. Robert A. Marciniak is enrolled to bill Medicare as a Practitioner - Medical Oncology (also registered under: Practitioner - Emergency Medicine, Practitioner - Internal Medicine) .
Bills through: Frio Hospital Association
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
HARVARD MEDICAL SCHOOL
Graduated in 1992Additional Specialities
- Internist
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- Gender: Female
- Address: 7979 Wurzbach Road San Antonio, 78229, TX
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- Gender: Female
- Address: 4383 Medical Drive San Antonio, 78229, TX
- Gender: Male
- Address: 7979 Wurzbach Road San Antonio, 78229, TX
- Gender: Male
- Address: 7979 Wurzbach Road San Antonio, 78229, TX
- Gender: Female
- Address: 7979 Wurzbach Road San Antonio, 78229, TX
- Gender: Male
- Address: 4383 Medical Drive San Antonio, 78229, TX
- Gender: Male
- Address: 7979 Wurzbach Road San Antonio, 78229, TX
Questions & Answers
Where can you meet with Dr. Robert A. Marciniak?
Dr. Robert A. Marciniak's office is located at 7979 Wurzbach Road in San Antonio, TX 78229.
What conditions does Dr. Robert A. Marciniak treat?
Dr. Robert A. Marciniak provides treatment for Brain Cancer, Edema, Headache, Influenza, Pancreatic Cancer, Pheochromocytoma (PCC). For the full list see this list.
Does Dr. Robert A. Marciniak accept insurance?
Dr. Robert A. Marciniak is listed in-network for 19 ACA Marketplace (Obamacare/HealthCare.gov) plans from Blue Cross and Blue Shield of Texas. See the Marketplace plans section for details.
Does Dr. Robert A. Marciniak have affiliation with practices?
Dr. Robert A. Marciniak is affiliated with Dimmit Regional Hospital. For the full list of practices see this list.