Doctor profile · Federal record

Dr. Mathew Greenberg, MD

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Portland, OR

  • NPI 1083819551
  • Accepts Medicare
  • MIPS 98.9 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4400 Ne Halsey St, Bldg #3 Pathology and Laboratory
Portland, OR 972131545
(503) 893-7757
fax (503) 893-7795

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
September 25, 2019
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Oregon #MD27976
Medicaid
OR #242856

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083819551. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,018
Distinct HCPCS
10
Medicare allowed
$39,862
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 206 141 $38
88341 Special stained specimen slides to examine tissue, each additional procedure 181 52 $29
88360 Microscopic genetic analysis of tumor, manual 180 141 $42
88173 Evaluation of fine needle aspirate with interpretation and report 101 65 $70
88112 Cell examination of specimen, selective cellular enhancement technique 98 81 $28
88342 Special stained specimen slides to examine tissue, initial procedure 96 68 $35
88304 Pathology examination of tissue using a microscope, moderately low complexity 38 32 $11
88307 Pathology examination of tissue using a microscope, moderately high complexity 30 18 $84
88141 Pap test 20 20 $24
88312 Special stained specimen slides to identify organisms including interpretation and report 18 12 $27

In context: peer comparison

Among 30 peers in Portland Anatomic Pathology & Clinical Pathology Physician, average services per provider: 95. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$35
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Urogen Pharma, INC. 1 $34.62

By nature of payment

Food and Beverage
$35

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mathew Greenberg's medical specialty?
Dr. Mathew Greenberg practices Anatomic Pathology & Clinical Pathology Physician in Portland, OR.
Where does Dr. Mathew Greenberg practice?
Dr. Mathew Greenberg practices at 4400 Ne Halsey St, Portland, OR 972131545. Office phone: 5038937757.
What is Dr. Mathew Greenberg's NPI?
Dr. Mathew Greenberg's National Provider Identifier (NPI) is 1083819551, issued by NPPES.
Does Dr. Mathew Greenberg accept Medicare assignment?
Yes. Dr. Mathew Greenberg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mathew Greenberg commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Microscopic genetic analysis of tumor, manual (HCPCS 88360). Source: CMS Medicare Physician & Other Practitioners file.