PlainDoctor

2026 NPPES data Sports Medicine (Orthopaedic Surgery) Physician NPI 1952376352 M.D.
Verify on CMS →

William Workman, M.D.

Sports Medicine (Orthopaedic Surgery) Physician in Walnut Creek, California.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,694 in Sports Medicine (Orthopaedic Surgery) 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
240
Medicare Part D claims · 101 beneficiaries · Sports Medicine (Orthopaedic Surgery) Physician avg: 278
MIPS score
87.3/100
▲ 4 pts above national avg 83.5 · Above neutral
Industry payments
$7.7K
22 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

William Workman, M.D. reported a CMS MIPS final score of 87.3/100 - above the 83.5 national average - and filed 240 Medicare Part D claims in 2023.

87.3/100
MIPS score · +4 vs avg
240
Part D claims, 2023
Likely
board-certified (heuristic)
≥52nd
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.

CMS NPPES provider registry desk

NPI 1952376352 · Sports Medicine (Orthopaedic Surgery) Physician

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-ABOVE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1952376352
  • ENUM-LEGACY 2006
  • TAX-NARROW 2,694
  • MIPS-ABOVE 87.3/100
  • RX-LIGHT 240
  • BOOK-THIN 299 in California
  • PHOTO-FINISH Michael Rauh · ±0.0

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

William Workman, 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.

87 ≥ 52nd percentile 52% 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 William Workman, M.D. sits

This provider among sports medicine (orthopaedic surgery) physician peers

Across the 924 sports medicine (orthopaedic surgery) physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Workman, M.D. writes more Part D claims than 57% of them and scores higher on MIPS quality than 65% - 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 quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 75William Workman, M.D., Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 65
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one sports medicine (orthopaedic surgery) physician peer from a representative sample of 60; the gold marker is William Workman, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

William Workman, 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 William Workman, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 02/20/2006

NPI 1952376352

Primary specialty

Sports Medicine (Orthopaedic Surgery) Physician

Niche

2,694 US NPIs in this specialty

Medicare Part D claims

240 14% vs specialty avg

2023 prescription claims

Specialty avg: 278

MIPS final score

87.3/100 3.8 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in California

How Sports Medicine (Orthopaedic Surgery) Physician compares to other specialties among California providers

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Sports Medicine (Orthopaedic…0%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

William Workman, M.D.'s 2023 MIPS final score plotted against the Sports Medicine (Orthopaedic Surgery) Physician national average

High performer (top quartile)
MIPS Final Score
87.3/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%87.3%
MIPS final score (Sports Medicine (Orthopaedic Surgery) Physician) - 87.3/100 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

390 N WIGET LN STE 100
Walnut Creek, CA 94598
(925) 944-0110

Provider Details

NPI 1952376352
Specialty Sports Medicine (Orthopaedic Surgery) Physician
Credentials M.D.
Gender Male
NPI Issued 02/20/2006

CMS Quality Score (MIPS)

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

87.2607
Final Score
Measured-score avg: 83.5
82.973
Quality
85.9138
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where William Workman, 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.

Bass Medical Group
Alamo, CA

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 William Workman, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$7.7K

Largest payer

Arthrex, 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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to William Workman, M.D.. To verify William Workman, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

240
Total Claims
$4K
Total Drug Cost
101
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
250
Total Day Supply
2,912
Generic Drug Cost
$3K
Opioid Claims
135 (56.3% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
0.80
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

What William Workman, M.D. 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
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
58
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
46
Cephalexin
 25
Tramadol Hcl
 25
Celecoxib
 17
Gabapentin
 15
Hydroxyzine Pamoate
 15
Meloxicam
 11

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

More Sports Medicine (Orthopaedic Surgery) Physician in CA → All providers in California → Compare specialties →

Sports Medicine (Orthopaedic Surgery) Physician Overview

How William Workman, M.D. fits within the Sports Medicine (Orthopaedic Surgery) Physician landscape nationally.

2,694
Sports Medicine (Orthopaedic Surgery) Physician Providers in US
53
States with Sports Medicine (Orthopaedic Surgery) Physician
278
Avg Claims per Provider

William Workman, M.D.'s 240 claims are below the specialty average of 278.

Nationwide Sports Medicine (Orthopaedic Surgery) Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (87.3 here).

Kevin Bailey 87.3 OH Michael Rauh 87.3 NY Brian Black 87.4 FL Kenneth Bramlett 87.5 AL

Same NPPES enumeration year (2006)

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

Avinash Kumar Bradenton, FL Richard Gaines Daytona Beach, FL Spencer Wheeler Savannah, GA Torey Botti Flagstaff, AZ

Nearby Sports Medicine (Orthopaedic Surgery) Physician Providers in California

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

One of 299 Sports Medicine (Orthopaedic Surgery) Physician providers enrolled in California, 5 are shown here.

Dr. Stephen Abelow
M.D.
South Lake Tahoe, CA
Dr. Paul Abeyta
MD
Burlingame, CA
Dr. Torgom Abraamyan
M.D.
Van Nuys, CA
Dr. Geoffrey Abrams
MD
Stanford, CA
Dr. Dennis Ainbinder
M.D.
Encino, CA

Compare Sports Medicine (Orthopaedic Surgery) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is William Workman, M.D.'s specialty? ▼
William Workman, M.D. specializes in Sports Medicine (Orthopaedic Surgery) Physician and practices in Walnut Creek, California. Credentials: M.D..
How much does William Workman, M.D. prescribe under Medicare Part D? ▼
In 2023, William Workman, M.D. wrote 240 Medicare Part D claims totaling $4K in drug costs for 101 beneficiaries.
What is William Workman, M.D.'s Medicare quality score? ▼
William Workman, M.D. has a CMS MIPS Final Score of 87.3/100 (Quality: 83). 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 William Workman, M.D. located? ▼
William Workman, M.D. is located at 390 N WIGET LN STE 100, Walnut Creek, CA, 94598. Phone: (925) 944-0110.
What is William Workman, M.D.'s NPI number? ▼
William Workman, M.D.'s National Provider Identifier (NPI) is 1952376352, issued on 02/20/2006.
Does William Workman, M.D. prescribe opioids? ▼
Yes, William Workman, M.D. had 135 opioid claims in 2023 with an opioid prescribing rate of 56.3%.
How many Sports Medicine (Orthopaedic Surgery) Physician providers are there in the US? ▼
There are 2,694 Sports Medicine (Orthopaedic Surgery) Physician providers across 53 states in the US. The average Sports Medicine (Orthopaedic Surgery) Physician provider writes 278 Medicare Part D claims per year.
What drugs does William Workman, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, William Workman, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Workman, M.D. accept Medicare? ▼
William Workman, M.D. appears in CMS Medicare data with 240 Part D claims and 101 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Workman, M.D.'s credentials? ▼
William Workman, M.D.'s NPI is 1952376352 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 (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

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.