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

Dr. Marc David Kessner, O.D.

Q: What is the NPI number for Marc Kessner?

The National Provider Identifier (NPI) for Marc Kessner is 1104057363, a Type 1 (individual) record in the CMS NPPES registry.

Optometrist in San Antonio, TX · enumerated 2009.

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

National Provider Identifier

1104057363

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Registry record

Entity type Individual (Type 1)

Name Dr. Marc David Kessner

Credential O.D.

Sex Male

Practice address San Antonio, TX, 78217

Phone (210) 826-1720

Fax (210) 826-1792

Enumeration date Aug 5, 2009

Last updated in NPPES Jul 30, 2020

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 7818-T (TX) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 0618001882 (VA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 7818TG (TX) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marc Kessner practice?

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

What is the NPI number for Marc Kessner?

The National Provider Identifier (NPI) for Marc Kessner is 1104057363, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-30.