2026 NPPES data Women's Health Nurse Practitioner NPI 1629423306 NP
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WHITNEY WILLIAMS, NP

Women's Health Nurse Practitioner in PORTLAND, 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
320
Medicare Part D claims · 156 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.0699/100
▲ 15 pts above national avg 83.1 · [object Object]
Industry payments
$567.29
7 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WHITNEY WILLIAMS, NP reported a CMS MIPS final score of 98.0699/100 — above the 83.1 national average — and filed 320 Medicare Part D claims in 2023.

98.0699/100
MIPS score · +15 vs avg
320
Part D claims, 2023
54%
generic prescribing
$567.29
industry payments (Sunshine Act)

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.

WHITNEY WILLIAMS, NP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 11% higher than 89% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about WHITNEY WILLIAMS, NP?

High performer (top quartile)

NPI registry status

Active

Issued 04/29/2016

NPI 1629423306

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

320 22% vs specialty avg

2023 prescription claims

Specialty avg: 262

MIPS final score

98.0699/100 14.96990000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maine

How Women's Health Nurse Practitioner compares to other specialties among Maine providers

Maine providers

Women's Health Nurse Practitioner share within Maine

1. Women's Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Women's Health Nurse Practitioner share within Maine

Medicare quality performance — MIPS

WHITNEY WILLIAMS, NP's 2023 MIPS final score plotted against the Women's Health Nurse Practitioner national average

High performer (top quartile)
MIPS Final Score
98.0699/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Women's Health Nurse Practitioner) — 98.0699/100 vs national avg 83.1

0%100%National avg83%98.1%
MIPS final score (Women's Health Nurse Practitioner) — 98.0699/100 vs national avg 83.1

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).

WHITNEY WILLIAMS, NP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding NP credentials at 443 CONGRESS ST FL 2, PORTLAND, ME, 04101, with a listed phone of (207) 797-8881. NPI 1629423306 was issued on 04/29/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 320 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $84K in drug spend, split 46% brand-name and 54% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.0699/100 for the 2023 performance year (Quality 86.1398), compared with the national average of 83.1.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

443 CONGRESS ST FL 2
PORTLAND, ME 04101

Provider Details

NPI 1629423306
Specialty Women's Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 04/29/2016

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where WHITNEY WILLIAMS, NP 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.

HARBOUR WOMENS HEALTH PLLC
PORTSMOUTH, NH

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 WHITNEY WILLIAMS, NP. Source: openpaymentsdata.cms.gov.

Total received

$567

Largest payer

Axonics, 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 · Above average

WHITNEY WILLIAMS, NP — brand share 46.0%
Specialty average (est.)

46% brand-name claims vs 54% generic, on 320 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.

320
Total Claims
$84K
Total Drug Cost
156
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
538
Total Day Supply
13,542
Brand vs Generic
46% brand / 54% generic
Brand Drug Cost
$75K
Generic Drug Cost
$8K
Antibiotic Claims
83

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
1.04
Gender Split
100% female / 0% male
Age Distribution
<65: 15, 65-74: 64, 75-84: 61, 85+: 16

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What WHITNEY WILLIAMS, NP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Myrbetriq
Mirabegron
66
Estradiol
65
Gemtesa
Vibegron
56
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
32
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
25
Cephalexin
12
Methenamine Hippurate
11

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

Women's Health Nurse Practitioner Overview

How WHITNEY WILLIAMS, NP fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

WHITNEY WILLIAMS, NP's 320 claims are above the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in Maine

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

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is WHITNEY WILLIAMS, NP's specialty?
WHITNEY WILLIAMS, NP specializes in Women's Health Nurse Practitioner and practices in PORTLAND, Maine. Credentials: NP.
How much does WHITNEY WILLIAMS, NP prescribe under Medicare Part D?
In 2023, WHITNEY WILLIAMS, NP wrote 320 Medicare Part D claims totaling $84K in drug costs for 156 beneficiaries.
What is WHITNEY WILLIAMS, NP's Medicare quality score?
WHITNEY WILLIAMS, NP has a CMS MIPS Final Score of 98.0699/100 (Quality: 86.1398). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WHITNEY WILLIAMS, NP located?
WHITNEY WILLIAMS, NP is located at 443 CONGRESS ST FL 2, PORTLAND, ME, 04101. Phone: (207) 797-8881.
What is WHITNEY WILLIAMS, NP's NPI number?
WHITNEY WILLIAMS, NP's National Provider Identifier (NPI) is 1629423306, issued on 04/29/2016.
Does WHITNEY WILLIAMS, NP prescribe more brand-name or generic drugs?
WHITNEY WILLIAMS, NP's prescribing is 46% brand-name and 54% generic drugs by claim count, with $75K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does WHITNEY WILLIAMS, NP prescribe most often?
Based on 2023 Medicare Part D data, WHITNEY WILLIAMS, NP's most frequently prescribed drugs include Myrbetriq, Estradiol, Gemtesa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WHITNEY WILLIAMS, NP accept Medicare?
WHITNEY WILLIAMS, NP appears in CMS Medicare data with 320 Part D claims and 156 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WHITNEY WILLIAMS, NP's credentials?
WHITNEY WILLIAMS, NP's NPI is 1629423306 with credentials NP. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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