2026 NPPES data Family Nurse Practitioner NPI 1518375153 FNP-C
Verify on CMS →

SARAH KELLER, FNP-C

Family Nurse Practitioner 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
1K
Medicare Part D claims · 215 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
33%
generic claims · 67% 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 shows

SARAH KELLER, FNP-C reported a CMS MIPS final score of 98.0699/100 — above the 83.1 national average — and filed 1,281 Medicare Part D claims in 2023.

98.0699/100
MIPS score · +15 vs avg
1K
Part D claims, 2023
33%
generic prescribing

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.

SARAH KELLER, FNP-C's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 11% higher than 89% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about SARAH KELLER, FNP-C?

High performer (top quartile)

NPI registry status

Active

Issued 07/28/2014

NPI 1518375153

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

1,281 5% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

MIPS final score

98.0699/100 14.96990000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maine

How Family Nurse Practitioner compares to other specialties among Maine providers

Maine providers

Family Nurse Practitioner share within Maine

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Maine

Medicare quality performance — MIPS

SARAH KELLER, FNP-C's 2023 MIPS final score plotted against the Family Nurse Practitioner national average

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

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

0%100%National avg83%98.1%
MIPS final score (Family Nurse Practitioner) — 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 KELLER, FNP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP-C credentials at 175 US ROUTE 1, SCARBOROUGH, ME, 04074, with a listed phone of (207) 396-7700. NPI 1518375153 was issued on 07/28/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KELLER 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 1,281 prescription claims written by this provider, covering 215 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 67% brand-name and 33% 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

175 US ROUTE 1
SCARBOROUGH, ME 04074

Provider Details

NPI 1518375153
Specialty Family Nurse Practitioner
Credentials FNP-C
Gender Female
NPI Issued 07/28/2014

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 KELLER, FNP-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.

MAINEHEALTH
SCARBOROUGH, 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 · Brand-heavy

SARAH KELLER, FNP-C — brand share 67.0%
Specialty average (est.)

67% brand-name claims vs 33% generic, on 1,281 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.

1,281
Total Claims
$1.4M
Total Drug Cost
215
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,009
Total Day Supply
88,940
Brand vs Generic
67% brand / 33% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
2.07
Gender Split
50% female / 50% male

Top Prescribed Drugs (Medicare Part D)

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

What SARAH KELLER, FNP-C 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
Novolog Flexpen
Insulin Aspart
101
Trulicity
Dulaglutide
86
Metformin Hcl Er
Metformin Hcl
85
Mounjaro
Tirzepatide
74
Ozempic
Semaglutide
70
Jardiance
Empagliflozin
63
Glipizide Er
Glipizide
52
Glipizide
46
Humalog Kwikpen U-100
Insulin Lispro
33
Novolog
Insulin Aspart
30

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

Family Nurse Practitioner Overview

How SARAH KELLER, FNP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

SARAH KELLER, FNP-C's 1,281 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Maine

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

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SARAH KELLER, FNP-C's specialty?
SARAH KELLER, FNP-C specializes in Family Nurse Practitioner and practices in SCARBOROUGH, Maine. Credentials: FNP-C.
How much does SARAH KELLER, FNP-C prescribe under Medicare Part D?
In 2023, SARAH KELLER, FNP-C wrote 1,281 Medicare Part D claims totaling $1.4M in drug costs for 215 beneficiaries.
What is SARAH KELLER, FNP-C's Medicare quality score?
SARAH KELLER, FNP-C 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 KELLER, FNP-C located?
SARAH KELLER, FNP-C is located at 175 US ROUTE 1, SCARBOROUGH, ME, 04074. Phone: (207) 396-7700.
What is SARAH KELLER, FNP-C's NPI number?
SARAH KELLER, FNP-C's National Provider Identifier (NPI) is 1518375153, issued on 07/28/2014.
Does SARAH KELLER, FNP-C prescribe more brand-name or generic drugs?
SARAH KELLER, FNP-C's prescribing is 67% brand-name and 33% generic drugs by claim count, with $1.4M in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does SARAH KELLER, FNP-C prescribe most often?
Based on 2023 Medicare Part D data, SARAH KELLER, FNP-C's most frequently prescribed drugs include Novolog Flexpen, Trulicity, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH KELLER, FNP-C accept Medicare?
SARAH KELLER, FNP-C appears in CMS Medicare data with 1,281 Part D claims and 215 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH KELLER, FNP-C's credentials?
SARAH KELLER, FNP-C's NPI is 1518375153 with credentials FNP-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.
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