NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David Wayne Marsh, M.D.

Urology Physician in Cincinnati, OH · enumerated 2006.

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

National Provider Identifier

1548359417

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Registry record

Entity type Individual (Type 1)
Name Dr. David Wayne Marsh
Credential M.D.
Sex Male
Practice address Cincinnati, OH, 45220
Phone (513) 487-6073
Fax (513) 475-6470
Enumeration date Oct 11, 2006
Last updated in NPPES Jan 12, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License A97473 (CA) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD00044003 (WA) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 56132 (KY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does David Marsh practice?
The practice location on file with NPPES is in Cincinnati, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Marsh?
The National Provider Identifier (NPI) for David Marsh is 1548359417, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-12.