Doctor profile · Federal record

Dr. William Tarng, MD

Internal Medicine Physician · Carson, CA

  • NPI 1376545723
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1000 E Dominguez St, Suite 110
Carson, CA 907463600
(310) 366-6959
fax (424) 704-2493

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
September 21, 2016
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A89784

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376545723. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,853
Distinct HCPCS
5
Medicare allowed
$265,865
HCPCS Description Services Patients Avg allowed
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 865 148 $163
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 737 138 $114
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 131 120 $193
99316 Nursing facility discharge management, more than 30 minutes 104 93 $139
99315 Nursing facility discharge day management, 30 minutes or less 16 15 $87

In context: peer comparison

Among 4 peers in this city , average services per provider: 120. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,004
Transactions
47
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 15 $274.22
Novartis Pharmaceuticals Corporation 9 $190.81
Boehringer Ingelheim Pharmaceuticals, Inc. 7 $178.57
ABIOMED 7 $163.51
Shionogi Inc 3 $61.23
Gilead Sciences, Inc. 2 $46.93
Merck Sharp & Dohme LLC 2 $42.51
E.R. Squibb & Sons, L.L.C. 1 $23.43
AIMMUNE THERAPEUTICS, INC. 1 $23.01

By nature of payment

Food and Beverage
$1,004

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
542
Patients
147
Total drug cost
$33,695
Drug Type Claims Patients Total cost
Omeprazole Generic 62 25 $607
Warfarin Sodium Generic 62 0 $512
Eliquis (Apixaban) Brand 52 21 $21,997
Amlodipine Besylate Generic 43 16 $237
Quetiapine Fumarate Generic 42 0 $360
Prednisone Generic 39 12 $314
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 37 23 $478
Potassium Chloride Generic 32 13 $834
Levothyroxine Sodium Generic 29 0 $370
Tramadol Hcl Generic 28 21 $97

Frequently asked questions

Auto-generated from federal data
What is Dr. William Tarng's medical specialty?
Dr. William Tarng practices Internal Medicine Physician in Carson, CA.
Where does Dr. William Tarng practice?
Dr. William Tarng practices at 1000 E Dominguez St, Carson, CA 907463600. Office phone: 3103666959.
What is Dr. William Tarng's NPI?
Dr. William Tarng's National Provider Identifier (NPI) is 1376545723, issued by NPPES.
What procedures does Dr. William Tarng commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.