Doctor profile · Federal record

Dr. Mary Fidler, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Rochester, MN

  • NPI 1124004130
  • Accepts Medicare
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
October 6, 2020
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Minnesota #42316
Medicaid
MN #150163100

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124004130. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
940
Distinct HCPCS
10
Medicare allowed
$26,013
HCPCS Description Services Patients Avg allowed
88350 Antibody evaluation, each additional single antibody stain procedure 262 30 $28
88350 Antibody evaluation, each additional single antibody stain procedure 214 24 $28
88313 Special stained specimen slides to examine tissue including interpretation and report 166 51 $12
88313 Special stained specimen slides to examine tissue including interpretation and report 91 30 $12
88305 Pathology examination of tissue using a microscope, intermediate complexity 57 52 $37
88305 Pathology examination of tissue using a microscope, intermediate complexity 30 30 $37
88346 Antibody evaluation, initial single antibody stain procedure 30 30 $35
88346 Antibody evaluation, initial single antibody stain procedure 27 27 $35
88348 Electron microscopy for diagnosis 27 27 $76
88348 Electron microscopy for diagnosis 25 25 $76

In context: peer comparison

Among 36 peers in Rochester Anatomic Pathology & Clinical Pathology Physician, average services per provider: 208. This provider delivers 4.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Fidler's medical specialty?
Dr. Mary Fidler practices Anatomic Pathology & Clinical Pathology Physician in Rochester, MN.
Where does Dr. Mary Fidler practice?
Dr. Mary Fidler practices at 200 1St St Sw, Rochester, MN 559050001. Office phone: 5072842511.
What is Dr. Mary Fidler's NPI?
Dr. Mary Fidler's National Provider Identifier (NPI) is 1124004130, issued by NPPES.
Does Dr. Mary Fidler accept Medicare assignment?
Yes. Dr. Mary Fidler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Fidler commonly perform?
Top Medicare-reported procedures in 2023: Antibody evaluation, each additional single antibody stain procedure (HCPCS 88350); Antibody evaluation, each additional single antibody stain procedure (HCPCS 88350); Special stained specimen slides to examine tissue including interpretation and report (HCPCS 88313). Source: CMS Medicare Physician & Other Practitioners file.