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2026 NPPES data Hematology & Oncology Physician NPI 1912994849 M.D.
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Michael Willen, M.D.

Hematology & Oncology Physician in Clifton Park, New York.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & Oncology Physician, 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.
MIPS score
82.5/100
▼ 1 pts below national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Michael Willen, M.D. reported a CMS MIPS final score of 82.5/100 - below the 83.5 national average.

82.5/100
MIPS score · -1 vs avg
Likely
board-certified (heuristic)
≥36th
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Michael Willen, M.D.

Federal records show an active NPI with a CMS quality score on file — objective federal reporting, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1912994849), first enumerated 10/05/2005.

    Source: CMS NPPES

  • Not in federal data

    Medicare Part D participation

    No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 82.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • State context

    State board disciplinary context

    New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Michael Willen, M.D.'s individual license status. Verify directly with the state medical board.

    Source: NYSBPMC annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1912994849 · Hematology & Oncology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1912994849
  • ENUM-LEGACY 2005
  • TAX-MID 11K Hematology &
  • MIPS-INLINE 82.5/100
  • BOOK-LIGHT 967 in New York
  • PHOTO-FINISH Antoine Harb · ±0.1

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Michael Willen, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

83 ≥ 36th percentile 36% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

✓
Board certification likely (heuristic, not verified)

Michael Willen, M.D. 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 Michael Willen, M.D.?

Near national average

NPI registry status

Active

Issued 10/05/2005

NPI 1912994849

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,232 US NPIs in this specialty

MIPS final score

82.5/100 1 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in New York

How Hematology & Oncology Physician compares to other specialties among New York providers

New York providers
Student in an Organized Heal…7.8%Registered Nurse5.2%Clinical Social Worker4.9%Social Worker4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse4.3%Hematology & Oncology Physic…0.2%
Largest specialties in New York (% of in-state providers)

Medicare quality performance, MIPS

Michael Willen, M.D.'s 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

Near national average
MIPS Final Score
82.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%82.5%
MIPS final score (Hematology & Oncology Physician) - 82.5/100 vs national avg 83.5
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).

Practice Address

3 CROSSING BLVD
Clifton Park, NY 12065
(518) 831-4434

Provider Details

NPI 1912994849
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 10/05/2005

CMS Quality Score (MIPS)

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

82.5039
Final Score
Measured-score avg: 83.5
77.1296
Quality
55.8347
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Michael Willen, M.D. 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.

New York Oncology Hematology PC
Halfmoon, NY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to Michael Willen, M.D.. To verify Michael Willen, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

More Hematology & Oncology Physician in NY → All providers in New York → Compare specialties →

Hematology & Oncology Physician Overview

How Michael Willen, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Willen, both outside New York so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (82.5 here).

Antoine Harb 82.4 TX Erin Bertino 82.6 OH Jarred Burkart 82.6 OH Shabana Dewani 82.6 OH

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Zhen Hou Jacksonville, FL Nandagopal Vrindavanam Bradenton, FL Jolly Varki Miami, FL Ellen Early Morristown, NJ

Nearby Hematology & Oncology Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Willen.

One of 967 Hematology & Oncology Physician providers enrolled in New York, 5 are shown here.

Dr. Anum Aamir
M.D
Astoria, NY
Dr. Robert Abderhalden
MD
Painted Post, NY
Dr. Mohammad Maher Abdul Hay
MD
New York, NY
Dr. George Abraham
MD
Rochester, NY
Dr. Avram Abramowitz
M.D.
Fresh Meadows, NY

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Michael Willen, M.D.'s specialty? ▼
Michael Willen, M.D. specializes in Hematology & Oncology Physician and practices in Clifton Park, New York. Credentials: M.D..
What is Michael Willen, M.D.'s Medicare quality score? ▼
Michael Willen, M.D. has a CMS MIPS Final Score of 82.5/100 (Quality: 77.1, Cost: 55.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Willen, M.D. located? ▼
Michael Willen, M.D. is located at 3 CROSSING BLVD, Clifton Park, NY, 12065. Phone: (518) 831-4434.
What is Michael Willen, M.D.'s NPI number? ▼
Michael Willen, M.D.'s National Provider Identifier (NPI) is 1912994849, issued on 10/05/2005.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
Does Michael Willen, M.D. accept Medicare? ▼
Michael Willen, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Willen, M.D.'s credentials? ▼
Michael Willen, M.D.'s NPI is 1912994849 with credentials M.D.. 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.
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

Compiled from official public sources by the editorial process.

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.