Doctor profile · Federal record

Dr. Roger Chan, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Los Angeles, CA

  • NPI 1811146053
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1100 N State St, Dept of Pathology, CT A7E, 7Th Floor
Los Angeles, CA 900335000
(323) 409-7148

Credentials & registration

NPPES · NUCC
NPI registered
September 2008 — 18 yrs on file
Profile last updated
December 8, 2021
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
California #A98685

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811146053. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
32
Distinct HCPCS
1
Medicare allowed
$1,251
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 32 17 $39

In context: peer comparison

Among 54 peers in Los Angeles Anatomic Pathology & Clinical Pathology Physician, average services per provider: 159. This provider delivers 0.2× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Roger Chan's medical specialty?
Dr. Roger Chan practices Anatomic Pathology & Clinical Pathology Physician in Los Angeles, CA.
Where does Dr. Roger Chan practice?
Dr. Roger Chan practices at 1100 N State St, Los Angeles, CA 900335000. Office phone: 3234097148.
What is Dr. Roger Chan's NPI?
Dr. Roger Chan's National Provider Identifier (NPI) is 1811146053, issued by NPPES.
Does Dr. Roger Chan accept Medicare assignment?
Yes. Dr. Roger Chan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Roger Chan commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305). Source: CMS Medicare Physician & Other Practitioners file.