Clark Nichols, MD
NPI 1063903557 · Anatomic Pathology & Clinical Pathology Physician · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Nichols, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Pittsburgh, PA (NPI 1063903557).
Provider details
- NPI number
- 1063903557
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A175760 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
342 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 | 177 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 75 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 33 | $32 |
| Pathology Examination of Tissue Using a Microscope, High Complexity88309 | 17 | $134 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 16 | $26 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 13 | $11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-21
- Last updated
- 2024-08-04
- Certified
- 2024-08-04
Frequently asked questions
- What is Clark Nichols's NPI number?
- Clark Nichols's National Provider Identifier (NPI) is 1063903557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Nichols's specialty?
- Clark Nichols is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Clark Nichols located?
- Clark Nichols's practice location on file with NPPES is 200 Lothrop St, Pittsburgh, PA 15213-2536.
- What is Clark Nichols's phone number?
- The practice phone number listed in the NPPES registry for Clark Nichols is (404) 895-0902.
- Does Clark Nichols accept Medicare?
- Clark Nichols is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Nichols's NPI active?
- Yes — Clark Nichols's NPI (1063903557) is active in the NPPES registry as of the last update on 2024-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.