Doctor profile · Federal record

Dr. Stephen Sun, DO

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Coronado, CA

  • NPI 1437644242
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
250 Prospect Pl
Coronado, CA 921181943
(619) 522-3600
Mailing address
100 Park Plz Apt 719
San Diego, CA 921016820

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
August 17, 2021
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A18000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437644242. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,102
Distinct HCPCS
7
Medicare allowed
$131,479
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 402 169 $82
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 234 108 $123
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 226 205 $179
99239 Hospital discharge day management, more than 30 minutes 193 184 $119
99238 Hospital discharge day management, 30 minutes or less 20 20 $84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 16 16 $134
99291 Critical care, first 30-74 minutes 11 11 $218

In context: peer comparison

Among 4 peers in this city , average services per provider: 94. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$110
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 1 $91.98
Grifols USA, LLC 1 $18.15

By nature of payment

Food and Beverage
$110

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
129
Patients
126
Total drug cost
$8,402
Drug Type Claims Patients Total cost
Cefuroxime (Cefuroxime Axetil) Brand 25 24 $365
Doxycycline Hyclate Generic 22 21 $222
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 18 17 $72
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $116
Atorvastatin Calcium Generic 13 13 $159
Losartan Potassium Generic 13 13 $71
Prednisone Generic 13 13 $33
Eliquis (Apixaban) Brand 11 11 $7,363

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Sun's medical specialty?
Dr. Stephen Sun practices Internal Medicine Physician in Coronado, CA.
Where does Dr. Stephen Sun practice?
Dr. Stephen Sun practices at 250 Prospect Pl, Coronado, CA 921181943. Office phone: 6195223600.
What is Dr. Stephen Sun's NPI?
Dr. Stephen Sun's National Provider Identifier (NPI) is 1437644242, issued by NPPES.
Does Dr. Stephen Sun accept Medicare assignment?
Yes. Dr. Stephen Sun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Sun commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.