LIA RENEE WESTHAFER (MSPAS, PA-C) – Physician Assistant, NPI 1174128201
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
10,570 PHYSICIAN ASSISTANT in CA
Provider Addresses for LIA RENEE WESTHAFER (MSPAS, PA-C)
325 DISTEL CIR
LOS ALTOS, CA 940221408
Phone: (650) 652-8290
Type: Mailing
901 CAMPUS DR
DALY CITY, CA 940154900
Phone: (650) 652-8290
Type: Location
733 PRINCE AVE
HEALDSBURG, CA 954483636
Phone: (330) 714-4169
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $231.
Total Amount is formed as General ($231) + Research ($0) + Ownership ($0) = $231.
Last reported payment date: 2024-03-22 • Largest payer in this snapshot: Medical Device Business Services, Inc. ($150).
Total Amount
$231
General + Research + Ownership
Payments
5
Total payment records
General Amount
$231
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medical Device Business Services, Inc. | $150 |
| Abbott Laboratories | $65 |
| Saluda Medical Americas, Inc. | $16 |
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: 2022-05-02
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 |
|---|---|---|---|---|
| I20220502001095 | I | Physician Assistant | 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 | 385 | 291 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 52 | 51 | $0 |
| 96146 | Administration of psychological or neuropsychological test by single standardized instrument via electronic platform with automated result | 48 | 48 | $0 |
| 62370 | Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician | 12 | 12 | $0 |
Insurance plans in this area (ZIP 94022)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | CA | |
| A L L E R G Y/ I M M U N O L O G Y | CA | |
| - | CA | |
| Hospitalist, Obstetrics/Gynecology | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OR | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| A N E S T H E S I O L O G Y | CA |
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