NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1609816388 WHPN
Verify on CMS → Catherine Earnest, WHPN
Obstetrics & Gynecology Nurse Practitioner in Newark, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,867 in Obstetrics & Gynecology Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
69
Medicare Part D claims · 25 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 232
Compiled from official public sources by the PlainDoctor editorial team.
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
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 reportedPrimary specialty
Obstetrics & Gynecology Nurse Practitioner
Medicare Part D claims
69 70% vs specialty avg
Specialty distribution in Delaware
How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among Delaware providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Obstetrics & Gynecology Nurse Practitioner. Verify directly:
How MIPS and board certification work
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 an 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.
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.
Obstetrics & Gynecology Nurse Practitioner is a narrow specialty nationwide, with 2,867 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
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
More Obstetrics & Gynecology Nurse Practitioner in DE →
All providers in Delaware →
Compare specialties →
Obstetrics & Gynecology Nurse Practitioner Overview
How Catherine Earnest, WHPN fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.
2,867
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.
Dr. Dina Anderson
NP
Newark, DE
Dr. Deanna Benner
NP
Newark, DE
Dr. Karlyn Brockenbrough
CRNP
Newark, DE
Karen Buck
Newark, DE
Dr. Patricia Ciranni
NP
Newark, DE
Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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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 2,867 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.