DR. WILLIAM BUCHANAN WORKMAN (M.D.) – Orthopaedic Surgery Physician, NPI 1952376352
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,024 ORTHOPEDIC SURGERY in CA
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Provider Addresses for DR. WILLIAM BUCHANAN WORKMAN (M.D.)
390 N WIGET LN STE 100
WALNUT CREEK, CA 945982450
Phone: (925) 944-0110
Fax: (925) 944-0960
Type: Mailing
101, Ygnacio Valley Road, Walnut Creek, Contra Costa County, California, 94596, United States
SUITE 400
WALNUT CREEK, CA 945964087
Phone: (925) 944-0110
Fax: (925) 944-0960
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 51 Open Payments records for all available years, with a total value of $16,109.
Total Amount is formed as General ($16,109) + Research ($0) + Ownership ($0) = $16,109.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Arthrex, Inc. ($12,741).
Total Amount
$16,109
General + Research + Ownership
Payments
51
Total payment records
General Amount
$16,109
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Arthrex, Inc. | $12,741 |
| Evolution Surgical, Inc | $1,538 |
| Stryker Corporation | $1,005 |
| Avanos Medical | $367 |
| Miach Orthopaedics, Inc. | $138 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-08-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040810000407 | I | Orthopedic Surgery | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 433 | 245 | $0 |
| J0702 | Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | 252 | 109 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 189 | 189 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 181 | 102 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 92 | 83 | $0 |
Insurance plans in this area (ZIP 94598)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | CA | 20610 | Aspiration and/or injection of large joint or joint capsule | 62 | 45 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| General Surgery | CA | |
| N E U R O S U R G E R Y | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| P O D I A T R Y | CA | |
| - | CA | |
| E N D O C R I N O L O G Y | KS | |
| Qualified Audiologist | CA |
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