Doctor profile · Federal record

Dr. Razmik Thomassian, M.D.

Internal Medicine Physician · Duarte, CA

  • NPI 1518351733
  • 11 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1227 Buena Vista St Ste F
Duarte, CA 910102486
(877) 254-4496
Mailing address
3746 Foothill Blvd # 506
Glendale, CA 912141740

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
December 19, 2022
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A152242

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518351733. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
32
Distinct HCPCS
1
Medicare allowed
$1,223
HCPCS Description Services Patients Avg allowed
99212 Established patient office or other outpatient visit, 10-19 minutes 32 18 $38

In context: peer comparison

Among 4 peers in Duarte Internal Medicine Physician, average services per provider: 86. This provider delivers 0.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
83
Patients
44
Total drug cost
$1,711
Drug Type Claims Patients Total cost
Azithromycin Generic 17 17 $99
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 16 14 $164
Celecoxib Generic 13 0 $744
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 13 13 $198
Quetiapine Fumarate Generic 13 0 $248
Atorvastatin Calcium Generic 11 0 $258

Frequently asked questions

Auto-generated from federal data
What is Dr. Razmik Thomassian's medical specialty?
Dr. Razmik Thomassian practices Internal Medicine Physician in Duarte, CA.
Where does Dr. Razmik Thomassian practice?
Dr. Razmik Thomassian practices at 1227 Buena Vista St Ste F, Duarte, CA 910102486. Office phone: 8772544496.
What is Dr. Razmik Thomassian's NPI?
Dr. Razmik Thomassian's National Provider Identifier (NPI) is 1518351733, issued by NPPES.
What procedures does Dr. Razmik Thomassian commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.