Matthew Koo, MD
NPI 1386062347 · Anatomic Pathology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Koo, MD is a Anatomic Pathology Physician provider in Los Angeles, CA (NPI 1386062347).
Provider details
- NPI number
- 1386062347
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A142047 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
11,508 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Flow Cytometry Technique for Dna Or Cell Analysis, Each Additional Marker88185 | 4,836 | $24 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 953 | $51 |
| Microscopic Genetic Analysis of Tissue, Manual, Each Additional Multiplex Stain Procedure88377 | 689 | $224 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 633 | $47 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 579 | $29 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 400 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$127 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-06
- Last updated
- 2023-08-08
- Certified
- 2023-08-08
Frequently asked questions
- What is Matthew Koo's NPI number?
- Matthew Koo's National Provider Identifier (NPI) is 1386062347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Koo's specialty?
- Matthew Koo is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Koo located?
- Matthew Koo's practice location on file with NPPES is 10833 Leconte Avenue, Los Angeles, CA 90095-3075.
- What is Matthew Koo's phone number?
- The practice phone number listed in the NPPES registry for Matthew Koo is (310) 267-2811.
- Does Matthew Koo accept Medicare?
- Matthew Koo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Koo's NPI active?
- Yes — Matthew Koo's NPI (1386062347) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.