Mark Nelson, D.O.
NPI 1346496163 · Anatomic Pathology & Clinical Pathology Physician · Concord Twp, OH
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Nelson, D.O. is a Anatomic Pathology & Clinical Pathology Physician provider in Concord Twp, OH (NPI 1346496163).
Provider details
- NPI number
- 1346496163
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 58.002167 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,064 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,283 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 758 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 324 | $32 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 241 | $75 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 96 | $25 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 89 | $11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$122 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-12
- Last updated
- 2011-05-17
Frequently asked questions
- What is Mark Nelson's NPI number?
- Mark Nelson's National Provider Identifier (NPI) is 1346496163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Nelson's specialty?
- Mark Nelson is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Nelson located?
- Mark Nelson's practice location on file with NPPES is 7590 Auburn Rd, Concord Twp, OH 44077-9176.
- What is Mark Nelson's phone number?
- The practice phone number listed in the NPPES registry for Mark Nelson is (440) 354-4208.
- Does Mark Nelson accept Medicare?
- Mark Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Nelson's NPI active?
- Yes — Mark Nelson's NPI (1346496163) is active in the NPPES registry as of the last update on 2011-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.