Doctor profile · Federal record

Dr. Anselm Lam, M.D.

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · San Francisco, CA

  • NPI 1841386141
  • Accepts Medicare
  • 52 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1520 Stockton St
San Francisco, CA 941333354
(415) 391-9686
fax (414) 355-8644

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
February 28, 2017
Year of graduation
1974 — 52 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (2)
California #31127 · Wisconsin #19516
Medicaid
WI #30876800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841386141. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,308
Distinct HCPCS
10
Medicare allowed
$39,554
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 442 316 $6
80048 Blood test, basic group of blood chemicals (calcium, total) 371 282 $8
81001 Manual urinalysis test with examination using microscope, automated 363 272 $3
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 363 276 $8
84550 Uric acid level, blood 353 274 $4
82570 Creatinine level to test for kidney function or muscle injury 348 262 $5
82043 Urine microalbumin (protein) level 347 260 $6
80076 Liver function blood test panel 318 243 $8
80061 Blood test, lipids (cholesterol and triglycerides) 270 213 $13
84443 Blood test, thyroid stimulating hormone (tsh) 243 199 $16

In context: peer comparison

Among 82 peers in San Francisco Family Medicine Physician, average services per provider: 96. This provider delivers 45× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,843
Patients
1,512
Total drug cost
$550,787
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 789 227 $22,734
Amlodipine Besylate Generic 457 128 $10,276
Metoprolol Succinate Generic 445 133 $15,678
Losartan Potassium Generic 438 126 $13,312
Diclofenac Sodium Generic 325 158 $6,894
Metformin Hcl Generic 306 84 $7,783
Omeprazole Generic 304 110 $8,214
Tamsulosin Hcl Generic 276 100 $10,614
Hydrochlorothiazide Generic 266 79 $2,063
Simvastatin Generic 260 73 $6,898

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Anselm Lam's medical specialty?
Dr. Anselm Lam practices Family Medicine Physician in San Francisco, CA.
Where does Dr. Anselm Lam practice?
Dr. Anselm Lam practices at 1520 Stockton St, San Francisco, CA 941333354. Office phone: 4153919686.
What is Dr. Anselm Lam's NPI?
Dr. Anselm Lam's National Provider Identifier (NPI) is 1841386141, issued by NPPES.
Does Dr. Anselm Lam accept Medicare assignment?
Yes. Dr. Anselm Lam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anselm Lam commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, basic group of blood chemicals (calcium, total) (HCPCS 80048); Manual urinalysis test with examination using microscope, automated (HCPCS 81001). Source: CMS Medicare Physician & Other Practitioners file.