Doctor profile · Federal record

Dr. Lia Westhafer, MSPAS, PA-C

Physician Assistant · Daly City, CA

  • NPI 1174128201
  • Accepts Medicare
  • 6 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
901 Campus Dr
Daly City, CA 940154900
(650) 652-8290
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
December 2020 — 6 yrs on file
Profile last updated
August 2, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #PA58933

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174128201. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
497
Distinct HCPCS
4
Medicare allowed
$47,256
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 385 291 $109
99213 Established patient office or other outpatient visit, 20-29 minutes 52 51 $81
96146 Administration of psychological or neuropsychological test by single standardized instrument via electronic platform with automated result 48 48 $2
62370 Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician 12 12 $82

In context: peer comparison

Among 4 peers in this city , average services per provider: 52. This provider delivers 9.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$150
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Medical Device Business Services, Inc. 1 $149.99

By nature of payment

Food and Beverage
$150

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
486
Patients
282
Total drug cost
$13,971
Drug Type Claims Patients Total cost
Gabapentin Generic 110 58 $2,359
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 72 61 $2,216
Oxycodone Hcl Generic 37 26 $677
Pregabalin Generic 36 21 $1,249
Diclofenac Sodium Generic 32 13 $965
Meloxicam Generic 32 20 $255
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 29 23 $1,296
Celecoxib Generic 27 14 $1,017
Cyclobenzaprine Hcl Generic 26 15 $443
Lidocaine Generic 21 13 $2,050

Frequently asked questions

Auto-generated from federal data
What is Dr. Lia Westhafer's medical specialty?
Dr. Lia Westhafer practices Physician Assistant in Daly City, CA.
Where does Dr. Lia Westhafer practice?
Dr. Lia Westhafer practices at 901 Campus Dr, Daly City, CA 940154900. Office phone: 6506528290.
What is Dr. Lia Westhafer's NPI?
Dr. Lia Westhafer's National Provider Identifier (NPI) is 1174128201, issued by NPPES.
Does Dr. Lia Westhafer accept Medicare assignment?
Yes. Dr. Lia Westhafer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lia Westhafer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Administration of psychological or neuropsychological test by single standardized instrument via electronic platform with automated result (HCPCS 96146). Source: CMS Medicare Physician & Other Practitioners file.