MARC ERIK NELSON M.D.
NPI 1659359644
Otolaryngology - Pediatric Otolaryngology in Dayton, OH
About Marc Erik Nelson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARC ERIK NELSON M.D. (NPI 1659359644) is an individual pediatric otolaryngology provider in Dayton, Ohio, licensed in Ohio (35.084096) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marc Erik Nelson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marc Nelson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dayton, OH 45404
- Reassigned Medicare billing, Ohio enrollment
- Medicare enrollment name: Dayton Childrens Specialty Physicians Inc
- 479 clinicians in this Medicare group
Akron, OH 44308
- Reassigned Medicare billing, Ohio enrollment
- 559 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DAYTON, OH 45404
DAYTON, OH 45404
DAYTON, OH 45404
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marc Nelson's NPI number?
The NPI number for Marc Nelson is 1659359644. It was assigned to this individual provider in the NPPES registry on January 9, 2006.
Where is Marc Nelson located?
Marc Nelson practices at 1 Childrens Plz, Dayton, OH 45404. The listed phone number is (937) 641-4000.
What is Marc Nelson's specialty?
The primary specialty registered for this NPI is Otolaryngology, specializing in Pediatric Otolaryngology, with taxonomy code 207YP0228X.
Is Marc Nelson enrolled in Medicare?
Yes. Marc Nelson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marc Nelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Nelson reassigns Medicare benefits to 2 organizations: Dayton Children's Specialty Physicians, Inc. (Dayton, OH) and Children's Hospital Medical Center Of Akron (Akron, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Nelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marc Nelson accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Antidote Health Plan of Ohio, Inc. and 3 other insurers list Marc Nelson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marc Nelson was last updated on February 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.