DR. WILLIAM BUCHANAN WORKMAN M.D.
NPI 1952376352
Orthopaedic Surgery in Walnut Creek, CA

Active since February 20, 2006PECOS EnrolledAccepts Medicare Assignment
87.26/100
CMS Quality Rating
390 N WIGET LN STE 100, WALNUT CREEK, CA 94598(925) 944-0110(925) 944-0960 Get Directions Write a Review

NPPES record last updated: February 10, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 10, 2025, Mar 25, 2021 (2 updates tracked since 2021).

About Dr. William Buchanan Workman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM BUCHANAN WORKMAN M.D. (NPI 1952376352) is an individual orthopaedic surgery provider in Walnut Creek, California, licensed in California (A72343) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1994).

NPPES Registry Identity

NPI1952376352
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. WILLIAM BUCHANAN WORKMANCredential: M.D.
Location Address390 N WIGET LN STE 100Walnut Creek, CA 94598-2450
Mailing Address390 N Wiget Ln Ste 100Walnut Creek, CA 94598-2450 · (925) 944-0110 · Fax (925) 944-0960
Fax(925) 944-0960
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 1994
Enumeration DateFebruary 20, 2006
Last NPPES UpdateFebruary 10, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 10, 2025
NPI 1952376352 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License Licensed in CA · A72343
Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License A72343 (CA)
390 N WIGET LN STE 100, Walnut Creek, CA 94598

Other Identifiers 1

Other5770390001CA · Medicare Dmepos

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. William Buchanan Workman M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284606534
PECOS Enrollment IDI20040810000407
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
331 services206 patients
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702
This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.
309 services130 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
217 services167 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
186 services186 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
185 services132 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
60 services54 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.26/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.97
Promoting Interoperability85.91
Improvement Activities40

Reported Quality Measures

Appropriate Use of DXA Scans in Women Under 65 Years Who Do Not Meet the Risk Factor Profile for Osteoporotic Fracture
Lower rates are better for this measure.
6%106 patients
Breast Cancer Screening
79%378 patients4/55-star benchmark: 93%
Cervical Cancer Screening
57%393 patients3/55-star benchmark: 98%
Chlamydia Screening for Women
42%31 patients
Colorectal Cancer Screening
59%1,014 patients3/55-star benchmark: 88%
Controlling High Blood Pressure
68%339 patients4/55-star benchmark: 91%
Diabetes: Eye Exam
24%89 patients1/55-star benchmark: 100%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
27%89 patients4/55-star benchmark: 91%
Documentation of Current Medications in the Medical Record
99%3,268 patients4/55-star benchmark: 100%
e-Prescribing
100%287 patients5/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
39%499 patients2/55-star benchmark: 100%
HIV Screening
18%1,212 patients2/55-star benchmark: 60%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
42%1,581 patients2/55-star benchmark: 98%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
22%1,385 patients1/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 91% · 924 patients
Patients screened: 95% · 924 patients
13%46 patients1/55-star benchmark: 100%
Provide Patients Electronic Access to Their Health Information
97%668 patients4/55-star benchmark: 100%
Risk-standardized complication rate (RSCR) following elective primary total hip arthroplasty (THA) and/or total knee arthroplasty (TKA) for Merit-based Incentive Payment System (MIPS)
Lower rates are better for this measure.
0.03%
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease
72%379 patients3/55-star benchmark: 91%
Support Electronic Referral Loops By Receiving and Reconciling Health Information
7%951 patients1/55-star benchmark: 98%
Support Electronic Referral Loops By Sending Health Information
2%206 patients1/55-star benchmark: 97%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Dynamic adjustable knee extension / flexion device, includes soft interface material E1810
DME-Other DME · category DE000N
2 suppliers15 claims15 services$100.30 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Orthopaedic Surgery
390 N WIGET LN STE 100
WALNUT CREEK, CA 94598

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Workman's NPI number?

The NPI number for William Workman is 1952376352. It was assigned to this individual provider in the NPPES registry on February 20, 2006.

Where is William Workman located?

William Workman practices at 390 N Wiget Ln Ste 100, Walnut Creek, CA 94598. The listed phone number is (925) 944-0110.

What is William Workman's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is William Workman enrolled in Medicare?

Yes. William Workman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for William Workman was last updated on February 10, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.