Doctor profile · Federal record

Dr. Mark Samols, M.D., PH.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Rockville, MD

  • NPI 1235372111
  • Accepts Medicare
  • 17 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9901 Medical Center Dr, Department of Pathology
Rockville, MD 208503357
(240) 826-6094

Credentials & registration

NPPES · NUCC
NPI registered
April 2009 — 17 yrs on file
Profile last updated
May 21, 2015
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Maryland #D77716

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235372111. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,333
Distinct HCPCS
10
Medicare allowed
$87,303
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 674 409 $40
88341 Special stained specimen slides to examine tissue, each additional procedure 556 123 $30
88342 Special stained specimen slides to examine tissue, initial procedure 189 161 $37
88311 Preparation of tissue for examination by removing any calcium present 162 144 $13
88304 Pathology examination of tissue using a microscope, moderately low complexity 151 128 $12
88307 Pathology examination of tissue using a microscope, moderately high complexity 132 90 $88
88313 Special stained specimen slides to examine tissue including interpretation and report 112 54 $13
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers 89 79 $91
85097 Bone marrow, smear interpretation 52 52 $52
88112 Cell examination of specimen, selective cellular enhancement technique 52 49 $29

In context: peer comparison

Among 8 peers in Rockville Anatomic Pathology & Clinical Pathology Physician, average services per provider: 305. This provider delivers 7.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Samols's medical specialty?
Dr. Mark Samols practices Anatomic Pathology & Clinical Pathology Physician in Rockville, MD.
Where does Dr. Mark Samols practice?
Dr. Mark Samols practices at 9901 Medical Center Dr, Rockville, MD 208503357. Office phone: 2408266094.
What is Dr. Mark Samols's NPI?
Dr. Mark Samols's National Provider Identifier (NPI) is 1235372111, issued by NPPES.
Does Dr. Mark Samols accept Medicare assignment?
Yes. Dr. Mark Samols accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Samols commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.