Dr. John D. Mastrovich
- Gender: Male
- Experience: 25 years
- Graduated from: Texas Tech University Health Science Center School Of Medicine
- Graduation year: 1996
- Sole propriator: Yes
- NPI: 1740205418
Dr. John D. Mastrovich M.D.
Allergist and Immunologist
He is located at 20650 Stone Oak Parkway Suite 106 in San Antonio, TX 78258. Can help patients with the following: Allergic Reaction, Asthma, Eosinophilic Esophagitis, Food Allergy, Hay Fever, Mold Exposure. His National Provider Identifier (NPI) number is 1740205418. Appointment can be made via the phone number (210) 342-6200. He is affiliated with 1 practices.
Conditions treated
Dr. John David Mastrovich, being an allergist and immunologist, 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. John D. Mastrovich.
- Allergic Reaction
- Allergies
- Asthma
- Celiac Disease
- Chronic Rhinitis
- Contact Dermatitis
- Eosinophilic Esophagitis
- Eye Allergy
- Food Allergies
- Food Allergy
- Hay Fever
- Lactose Intolerance
- Mold Exposure
- Peanut Allergy
- Pink Eye
- Plant Contact Allergy
- Sinusitis
Procedures Performed by Dr. John D. Mastrovich
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John D. Mastrovich 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 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 |
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 |
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. John D. Mastrovich 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. John D. Mastrovich is enrolled to bill Medicare as a Practitioner - Allergy/immunology .
Medicare practice location(s) (city/state/zip only, as reported to Medicare):
- SAN ANTONIO, TX, 78258-7356
Bills through: John Mastrovich, M.d., P.a.
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.
Payments received
Drug payment
| Novartis | $150 |
Other
| Consulting | $150 |
Studies
TEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated in 1996
Looking for more Allergist and Immunologists?
There are 6 other allergist and immunologists in this region.
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- Gender: Female
- Address: Suite 101 155 East Sonterra Boulevard San Antonio, 78258, TX
- Gender: Male
- Address: Suite 200 115 Gallery Circle San Antonio, 78258, TX
- Gender: Female
- Address: Suite 126 104 Gallery Circle San Antonio, 78258, TX
- Gender: Female
- Address: Suite 210 540 Madison Oak Drive San Antonio, 78258, TX
- Gender: Female
- Address: Suite 101 19260 Stone Oak Parkway San Antonio, 78258, TX
Questions & Answers
What conditions does Dr. John David Mastrovich treat?
Dr. John David Mastrovich provides treatment for Allergic Reaction, Asthma, Eosinophilic Esophagitis, Food Allergy, Hay Fever, Mold Exposure. For the full list see this list.
Does Dr. John David Mastrovich have affiliation with practices?
Dr. John David Mastrovich is affiliated with John Mastrovich MD PA.
Where can you meet with Dr. John David Mastrovich?
Dr. John David Mastrovich's office is located at 20650 Stone Oak Parkway Suite 106 in San Antonio, TX 78258.
Does Dr. John David Mastrovich accept patients with Blue Cross and Blue Shield of Texas?
Yes, Dr. John David Mastrovich is listed in-network for Blue Cross and Blue Shield of Texas through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.