Doctor profile · Federal record

Dr. Eric Tam, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Los Angeles, CA

  • NPI 1053739805
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1441 Eastlake Ave
Los Angeles, CA 900892203
(323) 865-3105
Mailing address
Po Box 31309
Los Angeles, CA 900310309

Credentials & registration

NPPES · NUCC
NPI registered
March 2014 — 12 yrs on file
Profile last updated
November 27, 2023
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #A139987

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1053739805. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
600
Distinct HCPCS
5
Medicare allowed
$69,841
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 191 26 $126
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 151 30 $84
99215 Established patient office or other outpatient visit, 40-54 minutes 133 32 $152
99214 Established patient office or other outpatient visit, 30-39 minutes 111 36 $104
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 14 13 $88

In context: peer comparison

Among 50 peers in Los Angeles Hematology & Oncology Physician, average services per provider: 1,244. This provider delivers 0.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$365
Transactions
16
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Alexion Pharmaceuticals, INC. 3 $72.41
Daiichi Sankyo INC. 3 $62.52
Celgene Corporation 3 $61.23
Blueprint Medicines Corporation 2 $41.12
Jazz Pharmaceuticals INC. 1 $32.96
Takeda Pharmaceuticals U.S.A., INC. 1 $26.42
Astellas Pharma US INC 1 $24.27
Abbvie INC. 1 $24.07
Adc Therapeutics America, INC. 1 $19.65

By nature of payment

Food and Beverage
$365

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
210
Patients
0
Total drug cost
$910,085
Drug Type Claims Patients Total cost
Acyclovir Generic 37 0 $904
Famotidine Generic 29 0 $926
Prednisone Generic 21 0 $105
Tacrolimus Generic 16 0 $974
Voriconazole Generic 16 0 $14,461
Tasigna (Nilotinib Hcl) Brand 15 0 $170,846
Gabapentin Generic 14 0 $199
Promacta (Eltrombopag Olamine) Brand 14 0 $435,769
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 13 0 $110
Bosulif (Bosutinib) Brand 12 0 $249,164

Frequently asked questions

Auto-generated from federal data
What is Dr. Eric Tam's medical specialty?
Dr. Eric Tam practices Hematology & Oncology Physician in Los Angeles, CA.
Where does Dr. Eric Tam practice?
Dr. Eric Tam practices at 1441 Eastlake Ave, Los Angeles, CA 900892203. Office phone: 3238653105.
What is Dr. Eric Tam's NPI?
Dr. Eric Tam's National Provider Identifier (NPI) is 1053739805, issued by NPPES.
Does Dr. Eric Tam accept Medicare assignment?
Yes. Dr. Eric Tam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eric Tam commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.