2026 NPPES data Neurology Physician NPI 1821676149 MD
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DAVID STEWART, MD

Neurology Physician in BALTIMORE, Maryland. 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.
Prescribing volume
72
Medicare Part D claims · 18 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DAVID STEWART, MD filed 72 Medicare Part D claims in 2023 as a Neurology Physician in BALTIMORE, Maryland, prescribing 76% generic.

72
Part D claims, 2023
76%
generic prescribing

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.

DAVID STEWART, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

72 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

DAVID STEWART, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

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

Quality data not reported

NPI registry status

Active

Issued 03/30/2021

NPI 1821676149

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

72 94% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Maryland

How Neurology Physician compares to other specialties among Maryland providers

Maryland providers

Neurology Physician share within Maryland

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurology 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).

DAVID STEWART, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 1800 ORLEANS ST, BALTIMORE, MD, 21287, with a listed phone of (410) 502-2037. NPI 1821676149 was issued on 03/30/2021. 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 records for calendar year 2023 show 72 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $8K in drug spend, split 24% brand-name and 76% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

1800 ORLEANS ST
BALTIMORE, MD 21287

Provider Details

NPI 1821676149
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 03/30/2021

Brand vs generic prescribing mix · Typical

DAVID STEWART, MD — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 72 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

72
Total Claims
$8K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
112
Total Day Supply
3,257
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$6K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.76

Neurology Physician Overview

How DAVID STEWART, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

DAVID STEWART, MD's 72 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in Maryland

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

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID STEWART, MD's specialty?
DAVID STEWART, MD specializes in Neurology Physician and practices in BALTIMORE, Maryland. Credentials: MD.
How much does DAVID STEWART, MD prescribe under Medicare Part D?
In 2023, DAVID STEWART, MD wrote 72 Medicare Part D claims totaling $8K in drug costs for 18 beneficiaries.
Where is DAVID STEWART, MD located?
DAVID STEWART, MD is located at 1800 ORLEANS ST, BALTIMORE, MD, 21287. Phone: (410) 502-2037.
What is DAVID STEWART, MD's NPI number?
DAVID STEWART, MD's National Provider Identifier (NPI) is 1821676149, issued on 03/30/2021.
Does DAVID STEWART, MD prescribe more brand-name or generic drugs?
DAVID STEWART, MD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $6K in brand drug costs.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
Does DAVID STEWART, MD accept Medicare?
DAVID STEWART, MD appears in CMS Medicare data with 72 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID STEWART, MD's credentials?
DAVID STEWART, MD's NPI is 1821676149 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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