Doctor profile · Federal record

Dr. Alan Leung, MD

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · San Francisco, CA

  • NPI 1245222330
  • Accepts Medicare
  • 31 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2238 Geary Blvd, 6Se
San Francisco, CA 941153416
(415) 833-2200

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
December 9, 2021
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A61442 · Louisiana #12846R
Medicaid
LA #7545562

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245222330. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
34
Distinct HCPCS
1
Medicare allowed
$3,494
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 34 20 $103

In context: peer comparison

Among 236 peers in San Francisco Internal Medicine Physician, average services per provider: 93. This provider delivers 0.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,154
Patients
1,353
Total drug cost
$56,686
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 775 248 $11,084
Amlodipine Besylate Generic 601 184 $7,666
Lisinopril Generic 395 123 $5,143
Losartan Potassium Generic 379 123 $4,857
Metformin Hcl Generic 239 76 $3,122
Levothyroxine Sodium Generic 216 61 $4,475
Tamsulosin Hcl Generic 214 81 $4,218
Atenolol Generic 203 56 $3,006
Simvastatin Generic 193 59 $2,387
Alendronate Sodium Generic 171 59 $1,962

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alan Leung's medical specialty?
Dr. Alan Leung practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Alan Leung practice?
Dr. Alan Leung practices at 2238 Geary Blvd, San Francisco, CA 941153416. Office phone: 4158332200.
What is Dr. Alan Leung's NPI?
Dr. Alan Leung's National Provider Identifier (NPI) is 1245222330, issued by NPPES.
Does Dr. Alan Leung accept Medicare assignment?
Yes. Dr. Alan Leung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Leung commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.