Doctor profile · Federal record

Dr. Michael Marshall, MD, PHD

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Anatomic Pathology & Clinical Pathology Physician · Boston, MA

  • NPI 1356800338
  • 7 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
55 Fruit St
Boston, MA 021142621
(314) 409-1180
Mailing address
1 Nashua St Apt 3416
Boston, MA 021141644

Credentials & registration

NPPES · NUCC
NPI registered
March 2019 — 7 yrs on file
Profile last updated
May 20, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State licenses (2)
Illinois #036163272 · Massachusetts #1014314

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356800338. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
32
Distinct HCPCS
2
Medicare allowed
$2,004
HCPCS Description Services Patients Avg allowed
88307 Pathology examination of tissue using a microscope, moderately high complexity 20 11 $80
88342 Special stained specimen slides to examine tissue, initial procedure 12 11 $34

In context: peer comparison

Among 76 peers in Boston Anatomic Pathology & Clinical Pathology Physician, average services per provider: 122. This provider delivers 0.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$22
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Inari Medical, INC. 1 $22.28

By nature of payment

Food and Beverage
$22

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Marshall's medical specialty?
Dr. Michael Marshall practices Anatomic Pathology & Clinical Pathology Physician in Boston, MA.
Where does Dr. Michael Marshall practice?
Dr. Michael Marshall practices at 55 Fruit St, Boston, MA 021142621. Office phone: 3144091180.
What is Dr. Michael Marshall's NPI?
Dr. Michael Marshall's National Provider Identifier (NPI) is 1356800338, issued by NPPES.
Does Dr. Michael Marshall accept Medicare assignment?
Dr. Michael Marshall does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Michael Marshall commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, moderately high complexity (HCPCS 88307); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.