2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1609816388 WHPN
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CATHERINE EARNEST, WHPN

Obstetrics & Gynecology Nurse Practitioner in NEWARK, 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
69
Medicare Part D claims · 25 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 232

What the federal data shows

CATHERINE EARNEST, WHPN filed 69 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Nurse Practitioner in NEWARK, Delaware.

69
Part D claims, 2023

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.

CATHERINE EARNEST, WHPN's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

69 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about CATHERINE EARNEST, WHPN?

Quality data not reported

NPI registry status

Active

Issued 06/08/2006

NPI 1609816388

Primary specialty

Obstetrics & Gynecology Nurse Practitioner

Niche

2,864 US NPIs in this specialty

Medicare Part D claims

69 70% vs specialty avg

2023 prescription claims

Specialty avg: 232

Specialty distribution in Delaware

How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among Delaware providers

Delaware providers

Obstetrics & Gynecology Nurse Practitioner share within Delaware

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

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Obstetrics & Gynecology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

CATHERINE EARNEST, WHPN appears in the CMS NPPES registry as a Obstetrics & Gynecology Nurse Practitioner provider holding WHPN credentials at 4735 OGLETOWN STANTON RD, NEWARK, DE, 19713, with a listed phone of (302) 623-4055. NPI 1609816388 was issued on 06/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EARNEST 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 69 prescription claims written by this provider, covering 25 Medicare beneficiaries and totaling roughly $4K 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.

Obstetrics & Gynecology Nurse Practitioner is a narrow specialty nationwide, with 2,864 enrolled providers across 52 states and an average of 232 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

4735 OGLETOWN STANTON RD
NEWARK, DE 19713

Provider Details

NPI 1609816388
Specialty Obstetrics & Gynecology Nurse Practitioner
Credentials WHPN
Gender Female
NPI Issued 06/08/2006

Medicare Part D Prescribing Data

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

69
Total Claims
$4K
Total Drug Cost
25
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
116
Total Day Supply
2,923
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
56.1 years
Avg HCC Risk Score
1.49
Gender Split
100% female / 0% male

Obstetrics & Gynecology Nurse Practitioner Overview

How CATHERINE EARNEST, WHPN fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.

2,864
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
232
Avg Claims per Provider

CATHERINE EARNEST, WHPN's 69 claims are below the specialty average of 232.

Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Delaware

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

Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CATHERINE EARNEST, WHPN's specialty?
CATHERINE EARNEST, WHPN specializes in Obstetrics & Gynecology Nurse Practitioner and practices in NEWARK, Delaware. Credentials: WHPN.
How much does CATHERINE EARNEST, WHPN prescribe under Medicare Part D?
In 2023, CATHERINE EARNEST, WHPN wrote 69 Medicare Part D claims totaling $4K in drug costs for 25 beneficiaries.
Where is CATHERINE EARNEST, WHPN located?
CATHERINE EARNEST, WHPN is located at 4735 OGLETOWN STANTON RD, NEWARK, DE, 19713. Phone: (302) 623-4055.
What is CATHERINE EARNEST, WHPN's NPI number?
CATHERINE EARNEST, WHPN's National Provider Identifier (NPI) is 1609816388, issued on 06/08/2006.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US?
There are 2,864 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 232 Medicare Part D claims per year.
Does CATHERINE EARNEST, WHPN accept Medicare?
CATHERINE EARNEST, WHPN appears in CMS Medicare data with 69 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHERINE EARNEST, WHPN's credentials?
CATHERINE EARNEST, WHPN's NPI is 1609816388 with credentials WHPN. 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