Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark J Ross, M.D.

Q: What is the NPI number for Mark Ross?

The National Provider Identifier (NPI) for Mark Ross is 1508869090, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Florence, SC · enumerated 2005.

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

National Provider Identifier

1508869090

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark J Ross

Credential M.D.

Sex Male

Practice address 367 W Evans St, Florence, SC, 29501

Phone (843) 669-4156

Fax (843) 664-2121

Enumeration date May 27, 2005

Last updated in NPPES Feb 14, 2024

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 11764 (SC) 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
4254796	Other	SC	AETNA
9624212	Other	SC	GHI
276873	Other	SC	PRIVATE HEALTHCARE SYSTEM
890602C	Medicaid	NC	-
621812	Other	SC	SELECT HEALTH
AT6689	Medicaid	SC	-
180012103	Other	SC	RAILROAD MEDICARE
S327574	Other	SC	CIGNA

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 Ross?

The National Provider Identifier (NPI) for Mark Ross is 1508869090, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Ross practice?

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

Other providers at this practice address

Browse all →

Isam Zakhour Ophthalmology Physician · Florence, SC NPI 1912900408 Hunter Stokes Ophthalmology Physician · Florence, SC NPI 1588667067 Mark Stokes Ophthalmology Physician · Florence, SC NPI 1013910595 Deanna Lyttle Ophthalmology Physician · Florence, SC NPI 1386890242 Carlene Taylor-Harlow Optician · Florence, SC NPI 1215222369 Shannon Harvey Optometrist · Florence, SC NPI 1689166019 Dawn Marentette Optician · Florence, SC NPI 1225519564

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-14.