2026 NPPES data Vascular Neurology Physician NPI 1073875951 M.D.
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BRIAN MAC GRORY, M.D.

Vascular Neurology Physician in PROVIDENCE, Rhode Island. 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
47
Medicare Part D claims · 11 beneficiaries · Vascular Neurology Physician avg: 378
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BRIAN MAC GRORY, M.D. filed 47 Medicare Part D claims in 2023 as a Vascular Neurology Physician in PROVIDENCE, Rhode Island, prescribing 77% generic.

47
Part D claims, 2023
77%
generic prescribing
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.

BRIAN MAC GRORY, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

47 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 certification likely (heuristic — not verified)

BRIAN MAC GRORY, M.D. 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 BRIAN MAC GRORY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/15/2012

NPI 1073875951

Primary specialty

Vascular Neurology Physician

Niche

555 US NPIs in this specialty

Medicare Part D claims

47 88% vs specialty avg

2023 prescription claims

Specialty avg: 378

Specialty distribution in Rhode Island

How Vascular Neurology Physician compares to other specialties among Rhode Island providers

Rhode Island providers

Vascular Neurology Physician share within Rhode Island

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

Specialty board-certification context

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

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

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

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

BRIAN MAC GRORY, M.D. appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding M.D. credentials at 593 EDDY STREET, PROVIDENCE, RI, 02903, with a listed phone of (401) 444-6440. NPI 1073875951 was issued on 06/15/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAC GRORY 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 47 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $7K in drug spend, split 23% brand-name and 77% 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.

Vascular Neurology Physician is a narrow specialty nationwide, with 555 enrolled providers across 47 states and an average of 378 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

593 EDDY STREET
PROVIDENCE, RI 02903

Provider Details

NPI 1073875951
Specialty Vascular Neurology Physician
Credentials M.D.
Gender Male
NPI Issued 06/15/2012

Hospital and facility affiliations

Facilities where BRIAN MAC GRORY, M.D. 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.

DUKE HEALTH INTEGRATED PRACTICE INC
DURHAM, NC

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

Brand vs generic prescribing mix · Typical

BRIAN MAC GRORY, M.D. — brand share 23.0%
Specialty average (est.)

23% brand-name claims vs 77% generic, on 47 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.

47
Total Claims
$7K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
70
Total Day Supply
2,064
Brand vs Generic
23% brand / 77% generic
Brand Drug Cost
$6K
Generic Drug Cost
$730

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.32

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Levetiracetam
14
Eliquis
Apixaban
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Vascular Neurology Physician Overview

How BRIAN MAC GRORY, M.D. fits within the Vascular Neurology Physician landscape nationally.

555
Vascular Neurology Physician Providers in US
47
States with Vascular Neurology Physician
378
Avg Claims per Provider

BRIAN MAC GRORY, M.D.'s 47 claims are below the specialty average of 378.

Nearby Vascular Neurology Physician Providers in Rhode Island

Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as MAC GRORY.

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

Frequently Asked Questions

What is BRIAN MAC GRORY, M.D.'s specialty?
BRIAN MAC GRORY, M.D. specializes in Vascular Neurology Physician and practices in PROVIDENCE, Rhode Island. Credentials: M.D..
How much does BRIAN MAC GRORY, M.D. prescribe under Medicare Part D?
In 2023, BRIAN MAC GRORY, M.D. wrote 47 Medicare Part D claims totaling $7K in drug costs for 11 beneficiaries.
Where is BRIAN MAC GRORY, M.D. located?
BRIAN MAC GRORY, M.D. is located at 593 EDDY STREET, PROVIDENCE, RI, 02903. Phone: (401) 444-6440.
What is BRIAN MAC GRORY, M.D.'s NPI number?
BRIAN MAC GRORY, M.D.'s National Provider Identifier (NPI) is 1073875951, issued on 06/15/2012.
Does BRIAN MAC GRORY, M.D. prescribe more brand-name or generic drugs?
BRIAN MAC GRORY, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $6K in brand drug costs.
How many Vascular Neurology Physician providers are there in the US?
There are 555 Vascular Neurology Physician providers across 47 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
What drugs does BRIAN MAC GRORY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BRIAN MAC GRORY, M.D.'s most frequently prescribed drugs include Levetiracetam, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN MAC GRORY, M.D. accept Medicare?
BRIAN MAC GRORY, M.D. appears in CMS Medicare data with 47 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN MAC GRORY, M.D.'s credentials?
BRIAN MAC GRORY, M.D.'s NPI is 1073875951 with credentials M.D.. 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