Mary Fidler, M.D.
NPI 1124004130 · Anatomic Pathology & Clinical Pathology Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Fidler, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Rochester, MN (NPI 1124004130).
Provider details
- NPI number
- 1124004130
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42316 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
772 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Antibody Evaluation, Each Additional Single Antibody Stain Procedure88350 | 398 | $29 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 205 | $12 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 67 | $37 |
| Antibody Evaluation, Initial Single Antibody Stain Procedure88346 | 46 | $35 |
| Electron Microscopy for Diagnosis88348 | 44 | $75 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 12 | $35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-21
- Last updated
- 2020-10-06
- Certified
- 2020-10-06
Frequently asked questions
- What is Mary Fidler's NPI number?
- Mary Fidler's National Provider Identifier (NPI) is 1124004130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Fidler's specialty?
- Mary Fidler is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Fidler located?
- Mary Fidler's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Mary Fidler's phone number?
- The practice phone number listed in the NPPES registry for Mary Fidler is (507) 284-2511.
- Does Mary Fidler accept Medicare?
- Mary Fidler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Fidler's NPI active?
- Yes — Mary Fidler's NPI (1124004130) is active in the NPPES registry as of the last update on 2020-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.