Doctor profile · Federal record

Dr. Kristen Tomaszewski, MD

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Anatomic Pathology & Clinical Pathology Physician · Cleveland, OH

  • NPI 1144601659
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
Cleveland Clinic 9500 Euclid Ave
Cleveland, OH 441950001
(216) 444-2200
Additional location
Massachusetts General Hospital, 55 Fruit St.
Boston, MA 02114
(617) 726-2967
Mailing address
26400 George Zeiger Dr Apt 406
Beachwood, OH 441227512

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
July 30, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State licenses (2)
Ohio #35.142794 · Massachusetts #L-263132

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144601659. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
999
Distinct HCPCS
6
Medicare allowed
$24,979
HCPCS Description Services Patients Avg allowed
88313 Special stained specimen slides to examine tissue including interpretation and report 371 119 $11
88350 Antibody evaluation, each additional single antibody stain procedure 310 51 $27
88346 Antibody evaluation, initial single antibody stain procedure 129 117 $34
88305 Pathology examination of tissue using a microscope, intermediate complexity 124 119 $35
88348 Electron microscopy for diagnosis 39 38 $73
88342 Special stained specimen slides to examine tissue, initial procedure 26 26 $32

In context: peer comparison

Among 34 peers in Cleveland Anatomic Pathology & Clinical Pathology Physician, average services per provider: 158. This provider delivers 6.3× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kristen Tomaszewski's medical specialty?
Dr. Kristen Tomaszewski practices Anatomic Pathology & Clinical Pathology Physician in Cleveland, OH.
Where does Dr. Kristen Tomaszewski practice?
Dr. Kristen Tomaszewski practices at Cleveland Clinic 9500 Euclid Ave, Cleveland, OH 441950001. Office phone: 2164442200.
What is Dr. Kristen Tomaszewski's NPI?
Dr. Kristen Tomaszewski's National Provider Identifier (NPI) is 1144601659, issued by NPPES.
Does Dr. Kristen Tomaszewski accept Medicare assignment?
Yes. Dr. Kristen Tomaszewski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kristen Tomaszewski commonly perform?
Top Medicare-reported procedures in 2023: Special stained specimen slides to examine tissue including interpretation and report (HCPCS 88313); Antibody evaluation, each additional single antibody stain procedure (HCPCS 88350); Antibody evaluation, initial single antibody stain procedure (HCPCS 88346). Source: CMS Medicare Physician & Other Practitioners file.