Doctor profile · Federal record

Dr. Thomas Farnham, MD

Family Medicine Physician · Addiction Medicine (Family Medicine) Physician · Geriatric Medicine (Family Medicine) Physician · Los Angeles, CA

  • NPI 1124186085
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1701 Zonal Ave
Los Angeles, CA 900331065
(323) 223-6298
fax (323) 223-6399
Mailing address
1145 Market St Fl 10
San Francisco, CA 941031566

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
March 13, 2017
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #G042378

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124186085. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$308
Transactions
14
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 12 $268.72
Masimo Corporation 1 $22.07
Indivior INC. 1 $17.02

By nature of payment

Food and Beverage
$308

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
587
Patients
71
Total drug cost
$23,617
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 72 12 $675
Acetaminophen-Codeine (Acetaminophen With Codeine) Brand 68 0 $719
Lorazepam Generic 54 0 $146
Gabapentin Generic 46 16 $1,333
Metformin Hcl Generic 40 15 $492
Diclofenac Sodium Generic 38 16 $1,440
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 36 12 $1,537
Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) Brand 36 0 $13,130
Methadone Hcl Generic 36 0 $317
Lisinopril Generic 33 0 $568

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Farnham's medical specialty?
Dr. Thomas Farnham practices Family Medicine Physician in Los Angeles, CA.
Where does Dr. Thomas Farnham practice?
Dr. Thomas Farnham practices at 1701 Zonal Ave, Los Angeles, CA 900331065. Office phone: 3232236298.
What is Dr. Thomas Farnham's NPI?
Dr. Thomas Farnham's National Provider Identifier (NPI) is 1124186085, issued by NPPES.