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Douglas Kelley Nicholson, DO

Nephrology Physician in Rock Hill, SC · enumerated 2005 · practices at Nephrology Associates PA.

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

National Provider Identifier

1649273582

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Registry record

Entity type Individual (Type 1)
Name Douglas Kelley Nicholson
Credential DO
Sex Male
Practice address 1436 Riverchase Blvd, Rock Hill, SC, 29732
Phone (803) 329-2636
Fax (803) 329-2184
Enumeration date May 24, 2005
Last updated in NPPES Feb 5, 2026

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 0717 (SC) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
T00380 Medicaid SC -

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.

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Frequently asked questions

What is the NPI number for Douglas Nicholson?
The National Provider Identifier (NPI) for Douglas Nicholson is 1649273582, a Type 1 (individual) record in the CMS NPPES registry.
Where does Douglas Nicholson practice?
The practice location on file with NPPES is in Rock Hill, SC. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-05.