2026 NPPES data Physician Assistant NPI 1114165123 PA-C
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CARTER BROWN, PA-C

Physician Assistant in DERRY, New Hampshire. 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
651
Medicare Part D claims · 155 beneficiaries · Physician Assistant avg: 790
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$157.86
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CARTER BROWN, PA-C is a Physician Assistant ([object Object]) practicing in DERRY, New Hampshire with a Medicare Part D prescribing footprint of 651 claims across 155 beneficiaries — 12% brand-name prescribing . Industry payments of $157.86 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CARTER BROWN, PA-C filed 651 Medicare Part D claims in 2023 across DERRY, New Hampshire. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CARTER BROWN, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 01/29/2009

NPI 1114165123

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

651 18% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in New Hampshire

How Physician Assistant compares to other specialties among New Hampshire providers

New Hampshire providers

Physician Assistant share within New Hampshire

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within New Hampshire

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Physician Assistant) — 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).

CARTER BROWN, PA-C is a Physician Assistant provider practicing in DERRY, New Hampshire, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1114165123. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CARTER BROWN, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 14 TSIENNETO RD STE 200A, DERRY, NH, 03038, with a listed phone of (866) 479-3208. NPI 1114165123 was issued on 01/29/2009. 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 651 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $45K in drug spend, split 12% brand-name and 88% 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

14 TSIENNETO RD STE 200A
DERRY, NH 03038

Provider Details

NPI 1114165123
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 01/29/2009

Hospital and facility affiliations

Facilities where CARTER BROWN, PA-C 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.

CORE PHYSICIANS LLC
EXETER, NH

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 CARTER BROWN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$158

Largest payer

Inari Medical, 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 · Typical

CARTER BROWN, PA-C — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 651 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.

651
Total Claims
$45K
Total Drug Cost
155
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,195
Total Day Supply
35,277
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$35K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.63
Gender Split
36% female / 64% male
Age Distribution
<65: 11, 65-74: 63, 75-84: 60, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Clopidogrel
Clopidogrel Bisulfate
76
Metoprolol Succinate
72
Furosemide
69
Atorvastatin Calcium
42
Isosorbide Mononitrate Er
Isosorbide Mononitrate
39
Amlodipine Besylate
36
Eliquis
Apixaban
33
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
25
Nitroglycerin
25
Rosuvastatin Calcium
20

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

Physician Assistant Overview

How CARTER BROWN, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

CARTER BROWN, PA-C's 651 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in New Hampshire

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

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

Frequently Asked Questions

What is CARTER BROWN, PA-C's specialty?
CARTER BROWN, PA-C specializes in Physician Assistant and practices in DERRY, New Hampshire. Credentials: PA-C.
How much does CARTER BROWN, PA-C prescribe under Medicare Part D?
In 2023, CARTER BROWN, PA-C wrote 651 Medicare Part D claims totaling $45K in drug costs for 155 beneficiaries.
Where is CARTER BROWN, PA-C located?
CARTER BROWN, PA-C is located at 14 TSIENNETO RD STE 200A, DERRY, NH, 03038. Phone: (866) 479-3208.
What is CARTER BROWN, PA-C's NPI number?
CARTER BROWN, PA-C's National Provider Identifier (NPI) is 1114165123, issued on 01/29/2009.
Does CARTER BROWN, PA-C prescribe more brand-name or generic drugs?
CARTER BROWN, PA-C's prescribing is 12% brand-name and 88% generic drugs by claim count, with $35K in brand drug costs.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does CARTER BROWN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, CARTER BROWN, PA-C's most frequently prescribed drugs include Clopidogrel, Metoprolol Succinate, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARTER BROWN, PA-C accept Medicare?
CARTER BROWN, PA-C appears in CMS Medicare data with 651 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARTER BROWN, PA-C's credentials?
CARTER BROWN, PA-C's NPI is 1114165123 with credentials PA-C. 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