Doctor profile · Federal record

Dr. Andrew Ren, MD

Internal Medicine Physician (CMS: Internal Medicine) · Los Angeles, CA

  • NPI 1346475928
  • Accepts Medicare
  • 19 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4950 W Sunset Blvd, 6Th Floor
Los Angeles, CA 900275822
(323) 783-3810
Mailing address
449 N Catalina Ave, Apt 204
Pasadena, CA 911061087

Credentials & registration

NPPES · NUCC
NPI registered
May 2009 — 17 yrs on file
Profile last updated
November 2, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A106267

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346475928. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
35
Distinct HCPCS
1
Medicare allowed
$2,915
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 35 12 $83

In context: peer comparison

Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 0.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
93
Patients
38
Total drug cost
$5,135
Drug Type Claims Patients Total cost
Furosemide Generic 26 22 $289
Pradaxa (Dabigatran Etexilate Mesylate) Brand 21 0 $4,186
Prednisone Generic 19 16 $217
Clopidogrel (Clopidogrel Bisulfate) Brand 15 0 $226
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 12 0 $217

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Ren's medical specialty?
Dr. Andrew Ren practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Andrew Ren practice?
Dr. Andrew Ren practices at 4950 W Sunset Blvd, Los Angeles, CA 900275822. Office phone: 3237833810.
What is Dr. Andrew Ren's NPI?
Dr. Andrew Ren's National Provider Identifier (NPI) is 1346475928, issued by NPPES.
Does Dr. Andrew Ren accept Medicare assignment?
Yes. Dr. Andrew Ren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Ren commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.