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2026 NPPES data Pain Medicine (Physical Medicine & Rehabilitation) Physician NPI 1881634491 M.D.
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Willie Yu, M.D.

Pain Medicine (Physical Medicine & Rehabilitation) Physician in Frederick, Maryland.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,661 in Pain Medicine (Physical Medicine & Rehabilitation) 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.
Prescribing volume
3K
Medicare Part D claims · 272 beneficiaries · Pain Medicine (Physical Medicine & Rehabilitation) Physician avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85/100
▲ 2 pts above 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

Willie Yu, M.D. reported a CMS MIPS final score of 85/100 - above the 83.5 national average - and filed 2,798 Medicare Part D claims in 2024.

85/100
MIPS score · +2 vs avg
3K
Part D claims, 2024
98%
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.

Federal trust snapshot

What official records show about Willie Yu, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1881634491), first enumerated 06/08/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 2,798 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 85/100 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

  • 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 1881634491 · Pain Medicine (Physical Medicine & Rehabilitation) Physician

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-INLINE · RX-MID · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1881634491
  • ENUM-LEGACY 2006
  • TAX-NARROW 1,661
  • MIPS-INLINE 85/100
  • RX-MID 2,798
  • BOOK-THIN 54 in Maryland
  • PHOTO-FINISH Allen Chen, MD, MPH · ±0.2

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

Willie Yu, 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.

85 ≥ 46th percentile 46% 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

Where Willie Yu, M.D. sits

This provider among pain medicine (physical medicine & rehabilitation) physician peers

Across the 430 pain medicine (physical medicine & rehabilitation) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Willie Yu, M.D. writes more Part D claims than 83% of them and scores higher on MIPS quality than 59% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 92Willie Yu, M.D., Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 59
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one pain medicine (physical medicine & rehabilitation) physician peer from a representative sample of 60; the gold marker is Willie Yu, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Willie Yu, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Willie Yu, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/08/2006

NPI 1881634491

Primary specialty

Pain Medicine (Physical Medicine & Rehabilitation) Physician

Niche

1,661 US NPIs in this specialty

Medicare Part D claims

2,798 100% vs specialty avg

2024 prescription claims

Specialty avg: 1,399

MIPS final score

85/100 1.5 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Maryland

How Pain Medicine (Physical Medicine & Rehabilitation) Physician compares to other specialties among Maryland providers

Maryland providers
Behavior Technician15.8%Clinical Social Worker5.4%Home Health Aide4.4%Student in an Organized Heal…4.4%Physical Therapist3.8%Pharmacist3.5%Pain Medicine (Physical Medi…0%
Largest specialties in Maryland (% of in-state providers)

Medicare quality performance, MIPS

Willie Yu, M.D.'s 2023 MIPS final score plotted against the Pain Medicine (Physical Medicine & Rehabilitation) Physician national average

High performer (top quartile)
MIPS Final Score
85/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%85%
MIPS final score (Pain Medicine (Physical Medicine & Rehabilitation) Physician) - 85/100 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

6550 MERCANTILE DR E
Frederick, MD 21703
(301) 668-0888

Provider Details

NPI 1881634491
Specialty Pain Medicine (Physical Medicine & Rehabilitation) Physician
Credentials M.D.
Gender Male
NPI Issued 06/08/2006

CMS Quality Score (MIPS)

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

85.0333
Final Score
Measured-score avg: 83.5
73.3333
Quality
99
Promoting Interoperability

Reporting: Individual

Brand vs generic prescribing mix · Generic-heavy

Willie Yu, M.D. - brand share 2.0%
Pain Medicine (Physical Medicine & Rehabilitation) Physician average

2% brand-name claims vs 98% generic, on 2,798 2024 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 2024.

2,798
Total Claims
$152K
Total Drug Cost
272
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,932.8
Total Day Supply
83,502
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$49K
Generic Drug Cost
$103K
Opioid Claims
1,789 (63.9% rate)

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
1.37
Gender Split
62% female / 38% male
Age Distribution
<65: 78, 65-74: 115, 75-84: 63, 85+: 16

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Willie Yu, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Oxycodone Hcl
 754
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
424
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
250
Gabapentin
 217
Tramadol Hcl
 188
Cyclobenzaprine Hcl
 156
Pregabalin
 77
Ibuprofen
 70
Carisoprodol
 67
Fentanyl
 47

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

More Pain Medicine (Physical Medicine & Rehabilitation) Physician in MD → All providers in Maryland → Compare specialties →

Pain Medicine (Physical Medicine & Rehabilitation) Physician Overview

How Willie Yu, M.D. fits within the Pain Medicine (Physical Medicine & Rehabilitation) Physician landscape nationally.

1,661
Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in US
51
States with Pain Medicine (Physical Medicine & Rehabilitation) Physician
1,399
Avg Claims per Provider

Willie Yu, M.D.'s 2,798 claims are above the specialty average of 1,399.

Nationwide Pain Medicine (Physical Medicine & Rehabilitation) Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Yu, both outside Maryland so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (85 here).

Allen Chen 85.2 CA Jae Jung 85.2 CA Justin Hata 85.2 CA Sunil Albert 85.2 NY

Same NPPES enumeration year (2006)

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

Narayan Tata Naperville, IL Fan Xi Wilmington, NC Susan Klimow Anchorage, AK Ted Freeman Brick, NJ

Nearby Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in Maryland

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

One of 54 Pain Medicine (Physical Medicine & Rehabilitation) Physician providers enrolled in Maryland, 5 are shown here.

Dr. Tony Al-Amin
M.D.
Catonsville, MD
Dr. Gina Ambrose
D.O.
Cumberland, MD
Dr. Arthur Barletta
MD
Oxon Hill, MD
Kevin Bedwell
PA-C
Bel Air, MD
Dr. Akil Benjamin
DO
Westminster, MD

Compare Pain Medicine (Physical Medicine & Rehabilitation) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Willie Yu, M.D.'s specialty? ▼
Willie Yu, M.D. specializes in Pain Medicine (Physical Medicine & Rehabilitation) Physician and practices in Frederick, Maryland. Credentials: M.D..
How much does Willie Yu, M.D. prescribe under Medicare Part D? ▼
In 2024, Willie Yu, M.D. wrote 2,798 Medicare Part D claims totaling $152K in drug costs for 272 beneficiaries.
What is Willie Yu, M.D.'s Medicare quality score? ▼
Willie Yu, M.D. has a CMS MIPS Final Score of 85/100 (Quality: 73.3). 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 Willie Yu, M.D. located? ▼
Willie Yu, M.D. is located at 6550 MERCANTILE DR E, Frederick, MD, 21703. Phone: (301) 668-0888.
What is Willie Yu, M.D.'s NPI number? ▼
Willie Yu, M.D.'s National Provider Identifier (NPI) is 1881634491, issued on 06/08/2006.
Does Willie Yu, M.D. prescribe more brand-name or generic drugs? ▼
Willie Yu, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $49K in brand drug costs.
Does Willie Yu, M.D. prescribe opioids? ▼
Yes, Willie Yu, M.D. had 1,789 opioid claims in 2024 with an opioid prescribing rate of 63.9%.
How many Pain Medicine (Physical Medicine & Rehabilitation) Physician providers are there in the US? ▼
There are 1,661 Pain Medicine (Physical Medicine & Rehabilitation) Physician providers across 51 states in the US. The average Pain Medicine (Physical Medicine & Rehabilitation) Physician provider writes 1,399 Medicare Part D claims per year.
What drugs does Willie Yu, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Willie Yu, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Willie Yu, M.D. accept Medicare? ▼
Willie Yu, M.D. appears in CMS Medicare data with 2,798 Part D claims and 272 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Willie Yu, M.D.'s credentials? ▼
Willie Yu, M.D.'s NPI is 1881634491 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.