2026 NPPES data Internal Medicine Physician NPI 1912926452 M.D.
Verify on CMS →

BARBARA BROWN, M.D.

Internal Medicine Physician in PRINCETON, New Jersey. 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
906
Medicare Part D claims · 117 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$16.29
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BARBARA BROWN, M.D. filed 906 Medicare Part D claims in 2023 as a Internal Medicine Physician in PRINCETON, New Jersey, prescribing 92% generic.

906
Part D claims, 2023
92%
generic prescribing
$16.29
industry payments (Sunshine Act)

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.

BARBARA BROWN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

906 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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)

BARBARA BROWN, M.D. 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 BARBARA BROWN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/18/2006

NPI 1912926452

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

906 67% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in New Jersey

How Internal Medicine Physician compares to other specialties among New Jersey providers

New Jersey providers

Internal Medicine Physician share within New Jersey

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

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).

BARBARA BROWN, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 731 ALEXANDER RD, PRINCETON, NJ, 08540, with a listed phone of (609) 655-3800. NPI 1912926452 was issued on 07/18/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROWN 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 906 prescription claims written by this provider, covering 117 Medicare beneficiaries and totaling roughly $29K in drug spend, split 8% brand-name and 92% 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.

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

731 ALEXANDER RD
PRINCETON, NJ 08540

Provider Details

NPI 1912926452
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 07/18/2006

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 BARBARA BROWN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Novo Nordisk Inc

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.

Brand vs generic prescribing mix · Generic-heavy

BARBARA BROWN, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 906 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.

906
Total Claims
$29K
Total Drug Cost
117
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,304
Total Day Supply
66,826
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$12K
Generic Drug Cost
$17K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
1.15
Gender Split
75% female / 25% male
Age Distribution
<65: 0, 65-74: 43, 75-84: 58, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What BARBARA BROWN, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Rosuvastatin Calcium
81
Levothyroxine Sodium
62
Amlodipine Besylate
61
Hydrochlorothiazide
55
Atorvastatin Calcium
40
Losartan Potassium
28
Metformin Hcl Er
Metformin Hcl
22
Celecoxib
21
Fluoxetine Hcl
21
Lisinopril
21

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

Internal Medicine Physician Overview

How BARBARA BROWN, M.D. 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

BARBARA BROWN, M.D.'s 906 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as BROWN.

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

Frequently Asked Questions

What is BARBARA BROWN, M.D.'s specialty?
BARBARA BROWN, M.D. specializes in Internal Medicine Physician and practices in PRINCETON, New Jersey. Credentials: M.D..
How much does BARBARA BROWN, M.D. prescribe under Medicare Part D?
In 2023, BARBARA BROWN, M.D. wrote 906 Medicare Part D claims totaling $29K in drug costs for 117 beneficiaries.
Where is BARBARA BROWN, M.D. located?
BARBARA BROWN, M.D. is located at 731 ALEXANDER RD, PRINCETON, NJ, 08540. Phone: (609) 655-3800.
What is BARBARA BROWN, M.D.'s NPI number?
BARBARA BROWN, M.D.'s National Provider Identifier (NPI) is 1912926452, issued on 07/18/2006.
Does BARBARA BROWN, M.D. prescribe more brand-name or generic drugs?
BARBARA BROWN, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $12K in brand drug costs.
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.
What drugs does BARBARA BROWN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, BARBARA BROWN, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BARBARA BROWN, M.D. accept Medicare?
BARBARA BROWN, M.D. appears in CMS Medicare data with 906 Part D claims and 117 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BARBARA BROWN, M.D.'s credentials?
BARBARA BROWN, M.D.'s NPI is 1912926452 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