Doctor profile · Federal record

Dr. Shun PA, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · West Covina, CA

  • NPI 1588811319
  • Accepts Medicare
  • MIPS 86.3 / 100 · 2023
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1115 S Sunset Ave
West Covina, CA 917903940
(209) 526-4500
Mailing address
2100 Powell St Ste 400
Emeryville, CA 946081826

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
June 6, 2021
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A98070
Medicaid
CA #1588811319

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588811319. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
672
Distinct HCPCS
6
Medicare allowed
$73,877
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 201 186 $9
99285 Emergency department visit with high level of medical decision making 201 195 $182
99284 Emergency department visit with moderate level of medical decision making 108 104 $125
99291 Critical care, first 30-74 minutes 81 80 $224
71045 X-ray of chest, 1 view 58 57 $9
31500 Emergent insertion of breathing tube into windpipe using an endoscope 23 23 $145

In context: peer comparison

Among 2 peers in West Covina Emergency Medicine Physician, average services per provider: 74. This provider delivers 9.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
177
Patients
177
Total drug cost
$795
Drug Type Claims Patients Total cost
Ibuprofen Generic 63 63 $171
Cephalexin Generic 35 35 $242
Ondansetron Odt (Ondansetron) Brand 31 31 $252
Alprazolam Generic 18 18 $44
Prednisone Generic 15 15 $26
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 15 15 $60

Frequently asked questions

Auto-generated from federal data
What is Dr. Shun PA's medical specialty?
Dr. Shun PA practices Emergency Medicine Physician in West Covina, CA.
Where does Dr. Shun PA practice?
Dr. Shun PA practices at 1115 S Sunset Ave, West Covina, CA 917903940. Office phone: 2095264500.
What is Dr. Shun PA's NPI?
Dr. Shun PA's National Provider Identifier (NPI) is 1588811319, issued by NPPES.
Does Dr. Shun PA accept Medicare assignment?
Yes. Dr. Shun PA accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shun PA commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.