2026 NPPES data Obstetrics & Gynecology Physician NPI 1083811186 MD
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ANNA PILZEK, MD

Obstetrics & Gynecology Physician in MOUNT VERNON, Washington. 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
431
Medicare Part D claims · 214 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.4788/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$500.38
19 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANNA PILZEK, MD reported a CMS MIPS final score of 84.4788/100 — above the 83.1 national average — and filed 431 Medicare Part D claims in 2023.

84.4788/100
MIPS score · +1 vs avg
431
Part D claims, 2023
55%
generic prescribing
Likely
board-certified (heuristic)

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.

ANNA PILZEK, MD's MIPS score vs every scored U.S. clinician

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

84 45th percentile higher than 45% 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%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. 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

Board certification likely (heuristic — not verified)

ANNA PILZEK, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ANNA PILZEK, MD?

Near national average

NPI registry status

Active

Issued 07/02/2007

NPI 1083811186

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

431 141% vs specialty avg

2023 prescription claims

Specialty avg: 179

MIPS final score

84.4788/100 1.3788000000000125% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Washington

How Obstetrics & Gynecology Physician compares to other specialties among Washington providers

Washington providers

Obstetrics & Gynecology Physician share within Washington

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Washington

Medicare quality performance — MIPS

ANNA PILZEK, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average

Near national average
MIPS Final Score
84.4788/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics & Gynecology Physician) — 84.4788/100 vs national avg 83.1

0%100%National avg83%84.5%
MIPS final score (Obstetrics & Gynecology Physician) — 84.4788/100 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).

ANNA PILZEK, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 1400 E KINCAID ST, MOUNT VERNON, WA, 98274, with a listed phone of (360) 428-6471. NPI 1083811186 was issued on 07/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PILZEK 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 431 prescription claims written by this provider, covering 214 Medicare beneficiaries and totaling roughly $93K in drug spend, split 45% brand-name and 55% generic by claim count, with an opioid prescribing rate of 5.3%. 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 84.4788/100 for the 2023 performance year (Quality 79.2865, Cost 59.5997), compared with the national average of 83.1.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

1400 E KINCAID ST
MOUNT VERNON, WA 98274

Provider Details

NPI 1083811186
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 07/02/2007

CMS Quality Score (MIPS)

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

84.4788
Final Score
Avg: 83.1
79.2865
Quality
59.5997
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANNA PILZEK, MD 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.

PUBLIC HOSPITAL DIST NO 1 SKAGIT
MOUNT VERNON, WA

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 ANNA PILZEK, MD. Source: openpaymentsdata.cms.gov.

Total received

$500

Largest payer

IMMUNITYBIO, 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.

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to ANNA PILZEK, MD. To verify ANNA PILZEK, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

ANNA PILZEK, MD — brand share 45.0%
Specialty average (est.)

45% brand-name claims vs 55% generic, on 431 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.

431
Total Claims
$93K
Total Drug Cost
214
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
730
Total Day Supply
18,377
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$80K
Generic Drug Cost
$13K
Opioid Claims
23 (5.3% rate)
Antibiotic Claims
109

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
1.35
Gender Split
100% female / 0% male
Age Distribution
<65: 19, 65-74: 90, 75-84: 82, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

What ANNA PILZEK, MD 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
127
Estradiol
126
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
85
Tramadol Hcl
18
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
14
Ibuprofen
12

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

Obstetrics & Gynecology Physician Overview

How ANNA PILZEK, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

ANNA PILZEK, MD's 431 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Washington

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

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

Frequently Asked Questions

What is ANNA PILZEK, MD's specialty?
ANNA PILZEK, MD specializes in Obstetrics & Gynecology Physician and practices in MOUNT VERNON, Washington. Credentials: MD.
How much does ANNA PILZEK, MD prescribe under Medicare Part D?
In 2023, ANNA PILZEK, MD wrote 431 Medicare Part D claims totaling $93K in drug costs for 214 beneficiaries.
What is ANNA PILZEK, MD's Medicare quality score?
ANNA PILZEK, MD has a CMS MIPS Final Score of 84.4788/100 (Quality: 79.2865, Cost: 59.5997). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANNA PILZEK, MD located?
ANNA PILZEK, MD is located at 1400 E KINCAID ST, MOUNT VERNON, WA, 98274. Phone: (360) 428-6471.
What is ANNA PILZEK, MD's NPI number?
ANNA PILZEK, MD's National Provider Identifier (NPI) is 1083811186, issued on 07/02/2007.
Does ANNA PILZEK, MD prescribe more brand-name or generic drugs?
ANNA PILZEK, MD's prescribing is 45% brand-name and 55% generic drugs by claim count, with $80K in brand drug costs.
Does ANNA PILZEK, MD prescribe opioids?
Yes, ANNA PILZEK, MD had 23 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does ANNA PILZEK, MD prescribe most often?
Based on 2023 Medicare Part D data, ANNA PILZEK, MD's most frequently prescribed drugs include Myrbetriq, Estradiol, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANNA PILZEK, MD accept Medicare?
ANNA PILZEK, MD appears in CMS Medicare data with 431 Part D claims and 214 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANNA PILZEK, MD's credentials?
ANNA PILZEK, MD's NPI is 1083811186 with credentials MD. 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