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

Fred R Leess, MD

Otolaryngology Physician in Marysville, OH · enumerated 2005.

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

National Provider Identifier

1790768216

Verified

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Registry record

Entity type Individual (Type 1)
Name Fred R Leess
Credential MD
Sex Male
Practice address Marysville, OH, 43040
Phone (937) 578-4300
Fax (937) 578-4311
Enumeration date Nov 29, 2005
Last updated in NPPES Jun 25, 2019

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

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 35083442L (OH) 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
2450771 Medicaid OH -

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 Fred Leess?
The National Provider Identifier (NPI) for Fred Leess is 1790768216, a Type 1 (individual) record in the CMS NPPES registry.
Where does Fred Leess practice?
The practice location on file with NPPES is in Marysville, OH. 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 2019-06-25.