Mark Samols, M.D., PH.D.
NPI 1235372111 · Anatomic Pathology & Clinical Pathology Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Samols, M.D., PH.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Rockville, MD (NPI 1235372111).
Provider details
- NPI number
- 1235372111
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D77716 (MD)
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
17 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
1,921 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 | 704 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 429 | $29 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 206 | $35 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 141 | $85 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 85 | $12 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 75 | $13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-08
- Last updated
- 2015-05-21
Frequently asked questions
- What is Mark Samols's NPI number?
- Mark Samols's National Provider Identifier (NPI) is 1235372111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Samols's specialty?
- Mark Samols is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Samols located?
- Mark Samols's practice location on file with NPPES is 9901 Medical Center Dr, Rockville, MD 20850-3357.
- What is Mark Samols's phone number?
- The practice phone number listed in the NPPES registry for Mark Samols is (240) 826-6094.
- Does Mark Samols accept Medicare?
- Mark Samols is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Samols's NPI active?
- Yes — Mark Samols's NPI (1235372111) is active in the NPPES registry as of the last update on 2015-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.