2026 NPPES data Gerontology Nurse Practitioner NPI 1588378202 AGNP
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KATHERINE HAMMOND, AGNP

Gerontology Nurse Practitioner in HARTLY, Delaware. 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
92
Medicare Part D claims · 44 beneficiaries · Gerontology Nurse Practitioner avg: 1K
What the federal data reveals: KATHERINE HAMMOND, AGNP is a Gerontology Nurse Practitioner ([object Object]) practicing in HARTLY, Delaware with a Medicare Part D prescribing footprint of 92 claims across 44 beneficiaries .

What stands out: KATHERINE HAMMOND, AGNP filed 92 Medicare Part D claims in 2023 across HARTLY, Delaware. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KATHERINE HAMMOND, AGNP at a glance

Quality data not reported

NPI registry status

Active

Issued 01/09/2023

NPI 1588378202

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

92 93% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Delaware

How Gerontology Nurse Practitioner compares to other specialties among Delaware providers

Delaware providers

Gerontology Nurse Practitioner share within Delaware

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

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).

KATHERINE HAMMOND, AGNP is a Gerontology Nurse Practitioner provider practicing in HARTLY, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: AGNP. NPI: 1588378202. 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.

KATHERINE HAMMOND, AGNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding AGNP credentials at 112 HAWK DR, HARTLY, DE, 19953, with a listed phone of (302) 598-8263. NPI 1588378202 was issued on 01/09/2023. 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 92 prescription claims written by this provider, covering 44 Medicare beneficiaries and totaling roughly $6K in drug spend. 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

112 HAWK DR
HARTLY, DE 19953

Provider Details

NPI 1588378202
Specialty Gerontology Nurse Practitioner
Credentials AGNP
Gender Female
NPI Issued 01/09/2023

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

92
Total Claims
$6K
Total Drug Cost
44
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
109
Total Day Supply
2,595
Generic Drug Cost
$2K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
68.0 years
Avg HCC Risk Score
5.10
Gender Split
64% female / 36% male
Age Distribution
<65: 13, 65-74: 21, 75-84: N/A, 85+: N/A

Gerontology Nurse Practitioner Overview

How KATHERINE HAMMOND, AGNP 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

KATHERINE HAMMOND, AGNP's 92 claims are below the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Delaware

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

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

Frequently Asked Questions

What is KATHERINE HAMMOND, AGNP's specialty?
KATHERINE HAMMOND, AGNP specializes in Gerontology Nurse Practitioner and practices in HARTLY, Delaware. Credentials: AGNP.
How much does KATHERINE HAMMOND, AGNP prescribe under Medicare Part D?
In 2023, KATHERINE HAMMOND, AGNP wrote 92 Medicare Part D claims totaling $6K in drug costs for 44 beneficiaries.
Where is KATHERINE HAMMOND, AGNP located?
KATHERINE HAMMOND, AGNP is located at 112 HAWK DR, HARTLY, DE, 19953. Phone: (302) 598-8263.
What is KATHERINE HAMMOND, AGNP's NPI number?
KATHERINE HAMMOND, AGNP's National Provider Identifier (NPI) is 1588378202, issued on 01/09/2023.
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.
Does KATHERINE HAMMOND, AGNP accept Medicare?
KATHERINE HAMMOND, AGNP appears in CMS Medicare data with 92 Part D claims and 44 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHERINE HAMMOND, AGNP's credentials?
KATHERINE HAMMOND, AGNP's NPI is 1588378202 with credentials AGNP. 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