2026 NPPES data Gerontology Nurse Practitioner NPI 1821633363 AGACNP
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SARAH STARKWEATHER, AGACNP

Gerontology Nurse Practitioner in BIDDEFORD, 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 · 112 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SARAH STARKWEATHER, AGACNP is a Gerontology Nurse Practitioner ([object Object]) practicing in BIDDEFORD, Maine with a Medicare Part D prescribing footprint of 1K claims across 112 beneficiaries — 5% brand-name prescribing .

What stands out: SARAH STARKWEATHER, AGACNP filed 1,375 Medicare Part D claims in 2023 across BIDDEFORD, Maine. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SARAH STARKWEATHER, AGACNP at a glance

Quality data not reported

NPI registry status

Active

Issued 11/07/2019

NPI 1821633363

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

1,375 7% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Maine

How Gerontology Nurse Practitioner compares to other specialties among Maine providers

Maine providers

Gerontology Nurse Practitioner share within Maine

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

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gerontology Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gerontology Nurse Practitioner) — 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).

SARAH STARKWEATHER, AGACNP is a Gerontology Nurse Practitioner provider practicing in BIDDEFORD, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: AGACNP. NPI: 1821633363. 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 STARKWEATHER, AGACNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding AGACNP credentials at 1 MEDICAL CENTER DR, BIDDEFORD, ME, 04005, with a listed phone of (207) 283-7980. NPI 1821633363 was issued on 11/07/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STARKWEATHER 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 1,375 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $56K in drug spend, split 5% brand-name and 95% 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.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

1 MEDICAL CENTER DR
BIDDEFORD, ME 04005

Provider Details

NPI 1821633363
Specialty Gerontology Nurse Practitioner
Credentials AGACNP
Gender Female
NPI Issued 11/07/2019

Hospital and facility affiliations

Facilities where SARAH STARKWEATHER, AGACNP 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
MAINEHEALTH
BIDDEFORD, 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 · Generic-heavy

SARAH STARKWEATHER, AGACNP — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 1,375 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.

1,375
Total Claims
$56K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,380
Total Day Supply
33,189
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$33K
Generic Drug Cost
$24K
Antibiotic Claims
125

Patient Demographics

Average Patient Age
79.5 years
Avg HCC Risk Score
1.90
Gender Split
54% female / 46% 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
Levothyroxine Sodium
79
Atorvastatin Calcium
56
Metoprolol Succinate
54
Doxycycline Hyclate
45
Pantoprazole Sodium
44
Furosemide
41
Lisinopril
41
Omeprazole
39
Gabapentin
38
Risperidone
35

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

Gerontology Nurse Practitioner Overview

How SARAH STARKWEATHER, AGACNP fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

SARAH STARKWEATHER, AGACNP's 1,375 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Maine

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

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

Frequently Asked Questions

What is SARAH STARKWEATHER, AGACNP's specialty?
SARAH STARKWEATHER, AGACNP specializes in Gerontology Nurse Practitioner and practices in BIDDEFORD, Maine. Credentials: AGACNP.
How much does SARAH STARKWEATHER, AGACNP prescribe under Medicare Part D?
In 2023, SARAH STARKWEATHER, AGACNP wrote 1,375 Medicare Part D claims totaling $56K in drug costs for 112 beneficiaries.
Where is SARAH STARKWEATHER, AGACNP located?
SARAH STARKWEATHER, AGACNP is located at 1 MEDICAL CENTER DR, BIDDEFORD, ME, 04005. Phone: (207) 283-7980.
What is SARAH STARKWEATHER, AGACNP's NPI number?
SARAH STARKWEATHER, AGACNP's National Provider Identifier (NPI) is 1821633363, issued on 11/07/2019.
Does SARAH STARKWEATHER, AGACNP prescribe more brand-name or generic drugs?
SARAH STARKWEATHER, AGACNP's prescribing is 5% brand-name and 95% generic drugs by claim count, with $33K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does SARAH STARKWEATHER, AGACNP prescribe most often?
Based on 2023 Medicare Part D data, SARAH STARKWEATHER, AGACNP's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH STARKWEATHER, AGACNP accept Medicare?
SARAH STARKWEATHER, AGACNP appears in CMS Medicare data with 1,375 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH STARKWEATHER, AGACNP's credentials?
SARAH STARKWEATHER, AGACNP's NPI is 1821633363 with credentials AGACNP. 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