Doctor profile · Federal record

Dr. Matthew Koo, MD

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

  • NPI 1386062347
  • Accepts Medicare
  • MIPS 89.7 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10833 Leconte Avenue
Los Angeles, CA 900953075
(310) 267-2811
fax (310) 267-2625
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
August 8, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207ZP0101X — NUCC code
State license (1)
California #A142047

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386062347. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,126
Distinct HCPCS
10
Medicare allowed
$300,050
HCPCS Description Services Patients Avg allowed
88185 Flow cytometry technique for dna or cell analysis, each additional marker 1,593 75 $26
88341 Special stained specimen slides to examine tissue, each additional procedure 725 113 $30
88341 Special stained specimen slides to examine tissue, each additional procedure 456 51 $61
88305 Pathology examination of tissue using a microscope, intermediate complexity 431 271 $40
88342 Special stained specimen slides to examine tissue, initial procedure 224 143 $37
88313 Special stained specimen slides to examine tissue including interpretation and report 197 32 $49
88377 Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure 196 34 $232
88305 Pathology examination of tissue using a microscope, intermediate complexity 190 91 $58
88313 Special stained specimen slides to examine tissue including interpretation and report 178 56 $13
88377 Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure 147 47 $68

In context: peer comparison

Among 22 peers in Los Angeles Anatomic Pathology Physician, average services per provider: 164. This provider delivers 37× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$127
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Blueprint Medicines Corporation 1 $126.52

By nature of payment

Food and Beverage
$127

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew Koo's medical specialty?
Dr. Matthew Koo practices Anatomic Pathology Physician in Los Angeles, CA.
Where does Dr. Matthew Koo practice?
Dr. Matthew Koo practices at 10833 Leconte Avenue, Los Angeles, CA 900953075. Office phone: 3102672811.
What is Dr. Matthew Koo's NPI?
Dr. Matthew Koo's National Provider Identifier (NPI) is 1386062347, issued by NPPES.
Does Dr. Matthew Koo accept Medicare assignment?
Yes. Dr. Matthew Koo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Koo commonly perform?
Top Medicare-reported procedures in 2023: Flow cytometry technique for dna or cell analysis, each additional marker (HCPCS 88185); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.