Mark Dieterich, M.D.
NPI 1043267461 · Anatomic Pathology & Clinical Pathology Physician · Evanston, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dieterich, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Evanston, IL (NPI 1043267461).
Provider details
- NPI number
- 1043267461
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036090861 (IL)
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
2,062 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 576 | $37 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 305 | $28 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 240 | $27 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 196 | $69 |
| Cell Examination of Specimen, Concentration Technique88108 | 182 | $22 |
| Evaluation of Fine Needle Aspirate88172 | 153 | $35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-30
- Last updated
- 2008-04-25
Frequently asked questions
- What is Mark Dieterich's NPI number?
- Mark Dieterich's National Provider Identifier (NPI) is 1043267461, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dieterich's specialty?
- Mark Dieterich is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Dieterich located?
- Mark Dieterich's practice location on file with NPPES is 2650 Ridge Ave, Evanston, IL 60201-1718.
- What is Mark Dieterich's phone number?
- The practice phone number listed in the NPPES registry for Mark Dieterich is (847) 570-1206.
- Does Mark Dieterich accept Medicare?
- Mark Dieterich is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dieterich's NPI active?
- Yes — Mark Dieterich's NPI (1043267461) is active in the NPPES registry as of the last update on 2008-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.