Quick answers
- Does Marc Herschelman accept Medicare assignment?
- Medicare's clinician data says Marc Herschelman may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Marc Herschelman see?
- In 2024, CMS data shows 177 Original Medicare patients and 2,281 services for Marc Herschelman. This counts Original Medicare only and measures volume, not quality.
- What is Marc Herschelman's NPI number?
- 1538193339. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Marc Herschelman, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 177 |
|---|---|
| Services billed to Medicare | 2,281 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)294 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)85 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)53 services
- Biopsy of large bowel using a flexible endoscope (45380)45 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)36 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure66%
- Arthritis38%
- Diabetes24%
- Ischemic heart disease23%
- Anxiety19%
Practice locations
Addresses where Marc Herschelman is enrolled with Medicare (CMS data updated October 2, 2026).
- 3100 Blue Ridge Rd, Suite 300Raleigh, NC 27612 (919) 781‑7515
- 3237 Blue Ridge RdRaleigh, NC 27612 (919) 781‑7500
Group practices
Medicare enrollment lists Marc Herschelman as a member of this group (CMS data updated October 2, 2026).
- Wake Internal Medicine Consultants, Inc.42 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Raleigh
Clinicians with the same Medicare primary specialty in Raleigh, NC — not a recommendation.
Other clinicians in Wake Internal Medicine Consultants, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1538193339 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians