MATTHEW KOO MD
NPI 1386062347
Pathology - Anatomic Pathology in Los Angeles, CA
About Matthew Koo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW KOO MD (NPI 1386062347) is an individual anatomic pathology provider in Los Angeles, California, licensed in California (A142047) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of University Of Hawaii John A. Burns School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Matthew Koo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Matthew Koo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 78 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 204 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 36
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Matthew Koo's NPI number?
The NPI number for Matthew Koo is 1386062347. It was assigned to this individual provider in the NPPES registry on April 6, 2014.
Where is Matthew Koo located?
Matthew Koo practices at 10833 Leconte Avenue, Los Angeles, CA 90095. The listed phone number is (310) 267-2811.
What is Matthew Koo's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.
Is Matthew Koo enrolled in Medicare?
Yes. Matthew Koo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Matthew Koo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Koo reassigns Medicare benefits to 2 organizations: Ucla Pathology And Laboratory Medicine Group (Los Angeles, CA) and The Huntington Medical Foundation (Pasadena, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Koo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Matthew Koo was last updated on August 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Matthew Koo, MD · NPI 1386062347
Anatomic Pathology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 6, 2014.
## Identity
- **NPI:** 1386062347 (Entity type: Individual)
- **Enumerated:** April 6, 2014
- **Primary specialty:** Pathology - Anatomic Pathology · taxonomy 207ZP0101X
- **State license:** A142047 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 10833 LECONTE AVENUE, Los Angeles, CA 90095-3075
- **Phone:** (310) 267-2811 · **Fax:** (310) 267-2625
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Ucla Pathology And Laboratory Medicine Group (NPI 1497732630, Los Angeles, CA); The Huntington Medical Foundation (NPI 1154467181, Pasadena, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Hawaii John A. Burns School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** August 8, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1386062347) · Data from the CMS NPPES public registry.