2026 NPPES data Internal Medicine Physician NPI 1184479800 DO
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MARK BRINKMAN, DO

Internal Medicine Physician in WARWICK, 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.

What the federal data shows

MARK BRINKMAN, DO is a Internal Medicine Physician in WARWICK, Rhode Island, listed in the federal CMS National Provider Identifier registry.

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-eligible specialty (heuristic — not verified)

MARK BRINKMAN, DO 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 MARK BRINKMAN, DO?

Quality data not reported

NPI registry status

Active

Issued 04/17/2024

NPI 1184479800

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Specialty distribution in Rhode Island

How Internal Medicine Physician compares to other specialties among Rhode Island providers

Rhode Island providers

Internal Medicine Physician share within Rhode Island

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

Specialty board-certification context

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

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

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

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

MARK BRINKMAN, DO appears in the CMS NPPES registry as a Internal Medicine Physician provider holding DO credentials at 455 TOLL GATE RD, WARWICK, RI, 02886, with a listed phone of (401) 737-7010. NPI 1184479800 was issued on 04/17/2024. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BRINKMAN 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 Internal Medicine Physician providers operate outside Part D entirely.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

455 TOLL GATE RD
WARWICK, RI 02886

Provider Details

NPI 1184479800
Specialty Internal Medicine Physician
Credentials DO
Gender Male
NPI Issued 04/17/2024

Internal Medicine Physician Overview

How MARK BRINKMAN, DO fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Nearby Internal Medicine Physician Providers in Rhode Island

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK BRINKMAN, DO's specialty?
MARK BRINKMAN, DO specializes in Internal Medicine Physician and practices in WARWICK, Rhode Island. Credentials: DO.
Where is MARK BRINKMAN, DO located?
MARK BRINKMAN, DO is located at 455 TOLL GATE RD, WARWICK, RI, 02886. Phone: (401) 737-7010.
What is MARK BRINKMAN, DO's NPI number?
MARK BRINKMAN, DO's National Provider Identifier (NPI) is 1184479800, issued on 04/17/2024.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
Does MARK BRINKMAN, DO accept Medicare?
MARK BRINKMAN, DO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK BRINKMAN, DO's credentials?
MARK BRINKMAN, DO's NPI is 1184479800 with credentials DO. 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