Doctor profile · Federal record

Dr. Andrew Tam, MD

Urology Physician (CMS: Urology) · Oakland, CA

  • NPI 1063943439
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
350 30Th St Ste 100
Oakland, CA 946093422
(510) 204-8168
Additional location
5 E 98Th St # 1259
New York, NY 100296501
(212) 241-5972
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
November 21, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
208800000X — NUCC code
State license (1)
California #A187988

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1063943439. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
148
Distinct HCPCS
7
Medicare allowed
$19,221
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 38 33 $151
99204 New patient office or other outpatient visit, 45-59 minutes 34 34 $194
99213 Established patient office or other outpatient visit, 20-29 minutes 20 19 $107
51798 Ultrasound measurement of bladder capacity after voiding 19 17 $14
81003 Automated urinalysis test 14 12 $2
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 12 12 $88
52000 Diagnostic exam of bladder and urethra using an endoscope 11 11 $310

In context: peer comparison

Among 5 peers in Oakland Urology Physician, average services per provider: 168. This provider delivers 0.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$113
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $85.16
Teleflex LLC 1 $27.52

By nature of payment

Food and Beverage
$113

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
75
Patients
36
Total drug cost
$759
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 36 20 $377
Finasteride Generic 27 16 $324
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 12 0 $58

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Tam's medical specialty?
Dr. Andrew Tam practices Urology Physician in Oakland, CA.
Where does Dr. Andrew Tam practice?
Dr. Andrew Tam practices at 350 30Th St Ste 100, Oakland, CA 946093422. Office phone: 5102048168.
What is Dr. Andrew Tam's NPI?
Dr. Andrew Tam's National Provider Identifier (NPI) is 1063943439, issued by NPPES.
Does Dr. Andrew Tam accept Medicare assignment?
Yes. Dr. Andrew Tam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Tam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.