Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Harvey Nelson, MD

Q: What is the NPI number for Mark Nelson?

The National Provider Identifier (NPI) for Mark Nelson is 1417953654, a Type 1 (individual) record in the CMS NPPES registry.

Retina Specialist (Ophthalmology) Physician in Winston Salem, NC · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1417953654

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Harvey Nelson

Credential MD

Sex Male

Practice address 750 Highland Oaks Dr Ste 100, Winston Salem, NC, 27103

Phone (336) 659-1528

Fax (336) 659-1980

Enumeration date Jun 22, 2005

Last updated in NPPES Feb 26, 2019

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 33109 (NC) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 33109 (NC) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
62094	Other	NC	BCBS
4557306002	Other	NC	CIGNA
8962094	Medicaid	NC	-
698	Other	NC	PARTNERS
10053	Other	NC	OPTICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mark Nelson?

The National Provider Identifier (NPI) for Mark Nelson is 1417953654, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Nelson practice?

The practice location on file with NPPES is in Winston Salem, NC. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-26.