DR. RICHARD V. WILLIAMSON (MD) – Orthopaedic Surgery Physician, NPI 1851352579
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. RICHARD V. WILLIAMSON (MD)
1400, East Kincaid Street, Mount Vernon, Skagit County, Washington, 98274, United States
C/O CREDENTIALING
MOUNT VERNON, WA 982744127
Phone: (360) 428-2500
Fax: (360) 428-6485
Type: Mailing
Skagit Regional Clinics - Riverbend, 2320, Freeway Drive, Mount Vernon, Skagit County, Washington, 98273, United States
MOUNT VERNON, WA 98273
Phone: (360) 814-6800
Fax: (360) 814-6917
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $374,186.
Total Amount is formed as General ($374,186) + Research ($0) + Ownership ($0) = $374,186.
Last reported payment date: 2024-10-03 • Largest payer in this snapshot: Zimmer Biomet Holdings, Inc. ($374,186).
Total Amount
$374,186
General + Research + Ownership
Payments
8
Total payment records
General Amount
$374,186
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Zimmer Biomet Holdings, Inc. | $374,186 |
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: 2010-07-27
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 |
|---|---|---|---|---|
| I20100727001073 | I | Orthopedic Surgery | WA | 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 |
|---|---|---|---|---|
| 20610 | Aspiration and/or injection of fluid from large joint | 131 | 97 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 131 | 105 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 48 | 47 | $0 |
| 27446 | Replacement of knee joint on side of knee | 31 | 29 | $0 |
| 27447 | Replacement of knee joint, both sides of knee | 22 | 20 | $0 |
Insurance plans in this area (ZIP 98274)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | NY | |
| Otolaryngology, Allergy/Immunology, Plastic And Reconstructive Surgery, Surgical Oncology | WA | |
| Nurse Practitioner | WA | |
| Nurse Practitioner | WA | |
| - | WA | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | WA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | WA | |
| O T O L A R Y N G O L O G Y | WA | |
| Orthopedic Surgery | WA | |
| - | WA |
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