2026 NPPES data Registered Nurse NPI 1427691765 FNP
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SARAH CARTER, FNP

Registered Nurse in SCARBOROUGH, Maine. 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
192
Medicare Part D claims · 85 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.0699/100
▲ 15 pts above national avg 83.1 · [object Object]
What the federal data reveals: SARAH CARTER, FNP is a Registered Nurse ([object Object]) practicing in SCARBOROUGH, Maine with a Medicare Part D prescribing footprint of 192 claims across 85 beneficiaries — 13% brand-name prescribing . Their CMS MIPS Final Score of 98.0699/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SARAH CARTER, FNP reported a CMS MIPS final score of 98.0699 out of 100, above the 83.1 national average, and filed 192 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SARAH CARTER, FNP at a glance

High performer (top quartile)

NPI registry status

Active

Issued 10/18/2019

NPI 1427691765

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

192 81% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

MIPS final score

98.0699/100 14.96990000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maine

How Registered Nurse compares to other specialties among Maine providers

Maine providers

Registered Nurse share within Maine

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Maine

Medicare quality performance — MIPS

SARAH CARTER, FNP's 2023 MIPS final score plotted against the Registered Nurse national average

High performer (top quartile)
MIPS Final Score
98.0699/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Registered Nurse) — 98.0699/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Registered Nurse) — 98.0699/100 vs national avg 83.1

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).

SARAH CARTER, FNP is a Registered Nurse provider practicing in SCARBOROUGH, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP. NPI: 1427691765. 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.

SARAH CARTER, FNP appears in the CMS NPPES registry as a Registered Nurse provider holding FNP credentials at 100 CAMPUS DR UNIT 121, SCARBOROUGH, ME, 04074, with a listed phone of (207) 396-8339. NPI 1427691765 was issued on 10/18/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARTER 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 192 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $22K in drug spend, split 13% brand-name and 87% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.0699/100 for the 2023 performance year (Quality 86.1398), compared with the national average of 83.1.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

100 CAMPUS DR UNIT 121
SCARBOROUGH, ME 04074

Provider Details

NPI 1427691765
Specialty Registered Nurse
Credentials FNP
Gender Female
NPI Issued 10/18/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where SARAH CARTER, FNP 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.

MAINEHEALTH
SOUTH PORTLAND, ME

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

SARAH CARTER, FNP — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 192 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.

192
Total Claims
$22K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
489
Total Day Supply
13,861
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$18K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.31
Gender Split
34% female / 66% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Tamsulosin Hcl
79
Finasteride
49
Myrbetriq
Mirabegron
24
Alprazolam
11

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

Registered Nurse Overview

How SARAH CARTER, FNP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

SARAH CARTER, FNP's 192 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in Maine

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is SARAH CARTER, FNP's specialty?
SARAH CARTER, FNP specializes in Registered Nurse and practices in SCARBOROUGH, Maine. Credentials: FNP.
How much does SARAH CARTER, FNP prescribe under Medicare Part D?
In 2023, SARAH CARTER, FNP wrote 192 Medicare Part D claims totaling $22K in drug costs for 85 beneficiaries.
What is SARAH CARTER, FNP's Medicare quality score?
SARAH CARTER, FNP has a CMS MIPS Final Score of 98.0699/100 (Quality: 86.1398). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SARAH CARTER, FNP located?
SARAH CARTER, FNP is located at 100 CAMPUS DR UNIT 121, SCARBOROUGH, ME, 04074. Phone: (207) 396-8339.
What is SARAH CARTER, FNP's NPI number?
SARAH CARTER, FNP's National Provider Identifier (NPI) is 1427691765, issued on 10/18/2019.
Does SARAH CARTER, FNP prescribe more brand-name or generic drugs?
SARAH CARTER, FNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $18K in brand drug costs.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does SARAH CARTER, FNP prescribe most often?
Based on 2023 Medicare Part D data, SARAH CARTER, FNP's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH CARTER, FNP accept Medicare?
SARAH CARTER, FNP appears in CMS Medicare data with 192 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH CARTER, FNP's credentials?
SARAH CARTER, FNP's NPI is 1427691765 with credentials FNP. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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