2026 NPPES data Pediatric Emergency Medicine (Emergency Medicine) Physician NPI 1528323797 MD
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ROBERT STEWART, MD

Pediatric Emergency Medicine (Emergency Medicine) Physician in SAN ANTONIO, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Industry payments
$132.22
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ROBERT STEWART, MD is a Pediatric Emergency Medicine (Emergency Medicine) Physician in SAN ANTONIO, Texas, listed in the federal CMS National Provider Identifier registry.

Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Board certification likely (heuristic — not verified)

ROBERT STEWART, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ROBERT STEWART, MD?

Quality data not reported

NPI registry status

Active

Issued 07/12/2012

NPI 1528323797

Primary specialty

Pediatric Emergency Medicine (Emergency Medicine) Physician

Niche

837 US NPIs in this specialty

Specialty distribution in Texas

How Pediatric Emergency Medicine (Emergency Medicine) Physician compares to other specialties among Texas providers

Texas providers

Pediatric Emergency Medicine (Emergency Medicine) Physician share within Texas

1. Pediatric Emergency Medicine (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Emergency Medicine (Emergency Medicine) Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Emergency Medicine (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pediatric Emergency Medicine (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Pediatric Emergency Medicine (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Emergency Medicine (Emergency Medicine) Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ROBERT STEWART, MD appears in the CMS NPPES registry as a Pediatric Emergency Medicine (Emergency Medicine) Physician provider holding MD credentials at 333 N SANTA ROSA, SAN ANTONIO, TX, 78207, with a listed phone of (210) 704-3030. NPI 1528323797 was issued on 07/12/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STEWART most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Pediatric Emergency Medicine (Emergency Medicine) Physician providers operate outside Part D entirely.

Pediatric Emergency Medicine (Emergency Medicine) Physician is a narrow specialty nationwide, with 837 enrolled providers across 45 states and an average of 227 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

333 N SANTA ROSA
SAN ANTONIO, TX 78207

Provider Details

NPI 1528323797
Specialty Pediatric Emergency Medicine (Emergency Medicine) Physician
Credentials MD
Gender Male
NPI Issued 07/12/2012

Hospital and facility affiliations

Facilities where ROBERT STEWART, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

BAYLOR COLLEGE OF MEDICINE
SAN ANTONIO, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ROBERT STEWART, MD. Source: openpaymentsdata.cms.gov.

Total received

$132

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to ROBERT STEWART, MD. To verify ROBERT STEWART, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Pediatric Emergency Medicine (Emergency Medicine) Physician Overview

How ROBERT STEWART, MD fits within the Pediatric Emergency Medicine (Emergency Medicine) Physician landscape nationally.

837
Pediatric Emergency Medicine (Emergency Medicine) Physician Providers in US
45
States with Pediatric Emergency Medicine (Emergency Medicine) Physician
227
Avg Claims per Provider

Nearby Pediatric Emergency Medicine (Emergency Medicine) Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as STEWART.

Compare Pediatric Emergency Medicine (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT STEWART, MD's specialty?
ROBERT STEWART, MD specializes in Pediatric Emergency Medicine (Emergency Medicine) Physician and practices in SAN ANTONIO, Texas. Credentials: MD.
Where is ROBERT STEWART, MD located?
ROBERT STEWART, MD is located at 333 N SANTA ROSA, SAN ANTONIO, TX, 78207. Phone: (210) 704-3030.
What is ROBERT STEWART, MD's NPI number?
ROBERT STEWART, MD's National Provider Identifier (NPI) is 1528323797, issued on 07/12/2012.
How many Pediatric Emergency Medicine (Emergency Medicine) Physician providers are there in the US?
There are 837 Pediatric Emergency Medicine (Emergency Medicine) Physician providers across 45 states in the US. The average Pediatric Emergency Medicine (Emergency Medicine) Physician provider writes 227 Medicare Part D claims per year.
Does ROBERT STEWART, MD accept Medicare?
ROBERT STEWART, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT STEWART, MD's credentials?
ROBERT STEWART, MD's NPI is 1528323797 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology