GARY MITCHELL WESTBROCK (PA) – Physician Assistant, NPI 1053371377
Physician Assistant
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for GARY MITCHELL WESTBROCK (PA)
2603 SILVERWOOD WAY
PASO ROBLES, CA 934464763
Phone: (805) 541-4018
Fax: (805) 543-6271
Type: Mailing
715 TANK FARM RD STE A
SAN LUIS OBISPO, CA 934017068
Phone: (805) 541-4018
Fax: (805) 543-6271
Type: Location
715, Tank Farm Road, San Luis Obispo, San Luis Obispo County, California, 93401, United States
SAN LUIS OBISPO, CA 93401
Phone: (805) 543-4488
Fax: (805) 543-6271
Type: Location
1028, Willow Circle, San Luis Obispo, San Luis Obispo County, California, 93401, United States
SAN LUIS OBISPO, CA 934017177
Phone: (805) 305-0654
Fax: (805) 543-6271
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 12 Open Payments records for all available years, with a total value of $227.
Total Amount is formed as General ($227) + Research ($0) + Ownership ($0) = $227.
Last reported payment date: 2024-11-04 • Largest payer in this snapshot: Seagen Inc. ($57).
Total Amount
$227
General + Research + Ownership
Payments
12
Total payment records
General Amount
$227
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Seagen Inc. | $57 |
| Exelixis Inc. | $45 |
| SOBI, INC | $40 |
| Eisai Inc. | $22 |
| Bayer Healthcare Pharmaceuticals Inc. | $20 |
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: 2023-09-08
PECOS data refreshed: 2026-05-27
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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 93446)
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