Doctor profile · Federal record

Dr. Alex Sun, M.D

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · San Diego, CA

  • NPI 1538502331
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 6 locations .

NPPES Updated May 11, 2026
Primary practice
200 W Arbor Dr
San Diego, CA 921039000
(800) 926-8273
fax (888) 539-8781
Additional location
330 Lewis St
San Diego, CA 921032108
Additional location
5555 Grossmont Center Dr
La Mesa, CA 919423019
(619) 740-4008
Show 3 more locations
Additional location
6655 Alvarado RD
San Diego, CA 921205208
Additional location
9300 Campus Point Dr
La Jolla, CA 920371300
Additional location
9400 Campus Point Dr
La Jolla, CA 920933019
Mailing address
File 57326
Los Angeles, CA 900740001

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
July 8, 2024
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A133334

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538502331. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,662
Distinct HCPCS
10
Medicare allowed
$136,611
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 1,485 13 $0
71045 X-ray of chest, 1 view 805 684 $9
70450 Ct scan head or brain without contrast 273 265 $42
71046 X-ray of chest, 2 views 208 207 $11
74177 Ct scan of abdomen and pelvis with contrast 164 160 $91
77063 Screening 3d breast mammography 140 124 $49
77067 Screening mammography 140 124 $122
77080 Dxa bone density measurement of hip, pelvis, spine 119 105 $38
70551 Mri scan of brain without contrast 73 72 $73
76770 Complete ultrasound scan behind abdominal cavity 72 72 $36

In context: peer comparison

Among 125 peers in San Diego Diagnostic Radiology Physician, average services per provider: 189. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ShockWave Medical, INC 1 $22.56

By nature of payment

Food and Beverage
$23

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alex Sun's medical specialty?
Dr. Alex Sun practices Diagnostic Radiology Physician in San Diego, CA.
Where does Dr. Alex Sun practice?
Dr. Alex Sun practices at 200 W Arbor Dr, San Diego, CA 921039000. Office phone: 8009268273.
What is Dr. Alex Sun's NPI?
Dr. Alex Sun's National Provider Identifier (NPI) is 1538502331, issued by NPPES.
Does Dr. Alex Sun accept Medicare assignment?
Yes. Dr. Alex Sun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alex Sun commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.