WILLIAM J PIERCE (M.D.) – Surgery Physician, NPI 1083620330
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
Provider Addresses for WILLIAM J PIERCE (M.D.)
136 N THIRD ST
LOMPOC, CA 934367002
Phone: (805) 736-1253
Fax: (805) 736-3193
Mailing address matches the actual address.
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 $8,118.
Total Amount is formed as General ($8,118) + Research ($0) + Ownership ($0) = $8,118.
Last reported payment date: 2024-09-04 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($8,118).
Total Amount
$8,118
General + Research + Ownership
Payments
8
Total payment records
General Amount
$8,118
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $8,118 |
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: 2005-02-28
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 |
|---|---|---|---|---|
| I20050228001045 | I | General 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 43 | 37 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 32 | 20 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 26 | 26 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 12 | 11 | $0 |
Insurance plans in this area (ZIP 93436)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| Family Practice | CA | |
| Diagnostic Radiology, Interventional Radiology | CA | |
| Family Practice | TX | |
| Interventional Radiology, Diagnostic Radiology | IL | |
| Orthopedic Surgery | WA | |
| H E M A T O L O G Y/ O N C O L O G Y | CA | |
| Family Practice | CA | |
| Marriage And Family Therapist | CA |
Reviews
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