2026 NPPES data Gerontology Nurse Practitioner NPI 1326473190 A/GNP-C
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ANN MARIE HAMMOND, A/GNP-C

Gerontology Nurse Practitioner in MARION, North Carolina. 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
9K
Medicare Part D claims · 488 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$16.33
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANN MARIE HAMMOND, A/GNP-C is a Gerontology Nurse Practitioner ([object Object]) practicing in MARION, North Carolina with a Medicare Part D prescribing footprint of 9K claims across 488 beneficiaries — 13% brand-name prescribing . Industry payments of $16.33 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANN MARIE HAMMOND, A/GNP-C filed 8,601 Medicare Part D claims in 2023 across MARION, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ANN MARIE HAMMOND, A/GNP-C at a glance

Quality data not reported

NPI registry status

Active

Issued 09/11/2013

NPI 1326473190

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

8,601 570% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in North Carolina

How Gerontology Nurse Practitioner compares to other specialties among North Carolina providers

North Carolina providers

Gerontology Nurse Practitioner share within North Carolina

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

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).

ANN MARIE HAMMOND, A/GNP-C is a Gerontology Nurse Practitioner provider practicing in MARION, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: A/GNP-C. NPI: 1326473190. 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.

ANN MARIE HAMMOND, A/GNP-C appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding A/GNP-C credentials at 2293 SUGAR HILL RD STE A, MARION, NC, 28752, with a listed phone of (828) 580-1364. NPI 1326473190 was issued on 09/11/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMMOND 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 8,601 prescription claims written by this provider, covering 488 Medicare beneficiaries and totaling roughly $977K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.6%. 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

2293 SUGAR HILL RD STE A
MARION, NC 28752

Provider Details

NPI 1326473190
Specialty Gerontology Nurse Practitioner
Credentials A/GNP-C
Gender Female
NPI Issued 09/11/2013

Hospital and facility affiliations

Facilities where ANN MARIE HAMMOND, A/GNP-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.

BLUE RIDGE HEALTHCARE MEDICAL GROUP INC
MARION, NC
PROACTIVE THERAPY OF NORTH CAROLINA INC
MARION, NC

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 ANN MARIE HAMMOND, A/GNP-C. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Seqirus USA 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

ANN MARIE HAMMOND, A/GNP-C — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 8,601 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.

8,601
Total Claims
$977K
Total Drug Cost
488
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16,748
Total Day Supply
488,853
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$839K
Generic Drug Cost
$132K
Opioid Claims
220 (2.6% rate)
Antibiotic Claims
157

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.30
Gender Split
72% female / 28% male
Age Distribution
<65: 45, 65-74: 207, 75-84: 146, 85+: 90

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
359
Amlodipine Besylate
327
Lisinopril
315
Atorvastatin Calcium
285
Omeprazole
270
Rosuvastatin Calcium
239
Metoprolol Succinate
221
Tramadol Hcl
211
Losartan Potassium
205
Trazodone Hcl
205

* 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 ANN MARIE HAMMOND, A/GNP-C 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

ANN MARIE HAMMOND, A/GNP-C's 8,601 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as HAMMOND.

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

Frequently Asked Questions

What is ANN MARIE HAMMOND, A/GNP-C's specialty?
ANN MARIE HAMMOND, A/GNP-C specializes in Gerontology Nurse Practitioner and practices in MARION, North Carolina. Credentials: A/GNP-C.
How much does ANN MARIE HAMMOND, A/GNP-C prescribe under Medicare Part D?
In 2023, ANN MARIE HAMMOND, A/GNP-C wrote 8,601 Medicare Part D claims totaling $977K in drug costs for 488 beneficiaries.
Where is ANN MARIE HAMMOND, A/GNP-C located?
ANN MARIE HAMMOND, A/GNP-C is located at 2293 SUGAR HILL RD STE A, MARION, NC, 28752. Phone: (828) 580-1364.
What is ANN MARIE HAMMOND, A/GNP-C's NPI number?
ANN MARIE HAMMOND, A/GNP-C's National Provider Identifier (NPI) is 1326473190, issued on 09/11/2013.
Does ANN MARIE HAMMOND, A/GNP-C prescribe more brand-name or generic drugs?
ANN MARIE HAMMOND, A/GNP-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $839K in brand drug costs.
Does ANN MARIE HAMMOND, A/GNP-C prescribe opioids?
Yes, ANN MARIE HAMMOND, A/GNP-C had 220 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
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 ANN MARIE HAMMOND, A/GNP-C prescribe most often?
Based on 2023 Medicare Part D data, ANN MARIE HAMMOND, A/GNP-C's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN MARIE HAMMOND, A/GNP-C accept Medicare?
ANN MARIE HAMMOND, A/GNP-C appears in CMS Medicare data with 8,601 Part D claims and 488 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN MARIE HAMMOND, A/GNP-C's credentials?
ANN MARIE HAMMOND, A/GNP-C's NPI is 1326473190 with credentials A/GNP-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