DR. JOHN DAVID MASTROVICH M.D.
NPI 1740205418
Allergy & Immunology in San Antonio, TX

Q: What is John Mastrovich's NPI number?

The NPI number for John Mastrovich is 1740205418. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Q: What is John Mastrovich's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for John Mastrovich was last updated on October 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 13, 2006PECOS Enrolled

20650 STONE OAK PKWY, SUITE 106, SAN ANTONIO, TX 78258(210) 342-6200(210) 342-6201 Get Directions Write a Review

NPPES record last updated: October 12, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. John David Mastrovich M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN DAVID MASTROVICH M.D. (NPI 1740205418) is an individual allergy & immunology provider in San Antonio, Texas, licensed in Texas (L2449) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Texas Tech University Health Science Center School Of Medicine (1996).

NPPES Registry Identity

NPI1740205418

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. JOHN DAVID MASTROVICHCredential: M.D.

Location Address20650 STONE OAK PKWY, SUITE 106San Antonio, TX 78258-7355

Mailing Address20650 Stone Oak Pkwy, Suite 106San Antonio, TX 78258-7355 · (210) 342-6200 · Fax (210) 342-6201

Phone(210) 342-6200

Fax(210) 342-6201

Sole ProprietorYes

Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 1996

Enumeration DateJuly 13, 2006

Last NPPES UpdateOctober 12, 2007

✔ NPI 1740205418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in TX · L2449

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

20650 STONE OAK PKWY, San Antonio, TX 78258

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Other Identifiers 2

Medicare PIN8F3752TX

Medicare UPINH51928

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John David Mastrovich M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446261390

PECOS Enrollment IDI20060508000357

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

517 services13 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

176 services11 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

71 services46 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

26 services17 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

1 supplier12 claims12 services$35.35 avg. paid by Medicare

Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers21 claims1,560 services$34.94 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOHN MASTROVICH, M.D., P.A.

Allergy & Immunology

20650 STONE OAK PKWY, SUITE 106
SAN ANTONIO, TX 78258

Bexar County (210) 342-6200

MINDMD1

Psychiatry & Neurology (Psychiatry)

20650 STONE OAK PKWY
SAN ANTONIO, TX 78258

Bexar County (210) 200-3001

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Mastrovich's NPI number?

The NPI number for John Mastrovich is 1740205418. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is John Mastrovich located?

John Mastrovich practices at 20650 Stone Oak Pkwy Suite 106, San Antonio, TX 78258. The listed phone number is (210) 342-6200.

What is John Mastrovich's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is John Mastrovich enrolled in Medicare?

Yes. John Mastrovich is registered in the Medicare PECOS enrollment system.

What insurance does John Mastrovich accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list John Mastrovich as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Mastrovich was last updated on October 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.