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Marcus A Washington Sr., MD

Family Medicine Physician in Mason, OH · enumerated 2005.

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

National Provider Identifier

1225026479

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Registry record

Entity type Individual (Type 1)
Name Marcus A Washington Sr.
Credential MD
Sex Male
Practice address 7450 S Mason Montgomery Rd Unit 200, Mason, OH, 45040
Phone (513) 204-5785
Fax (513) 229-0228
Enumeration date Oct 12, 2005
Last updated in NPPES Feb 22, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 35-096641 (OH) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 200501084 (NC) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 84824 (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
5902280 Medicaid NC -
3145028 Medicaid OH -
848248 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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Marcus Washington?
Marcus Washington is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-22.