Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Eisner, MD

Gastroenterology Physician in Zephyrhills, FL · enumerated 2006 · practices at Florida Medical Clinic LLC.

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

National Provider Identifier

1902815103

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Registry record

Entity type Individual (Type 1)

Name Mark Eisner

Credential MD

Sex Male

Practice address 38135 Market Square, Zephyrhills, FL, 33542

Phone (813) 780-7534

Fax (813) 715-1810

Enumeration date Aug 5, 2006

Last updated in NPPES Aug 25, 2021

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License ME57600 (FL) 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
063354200	Medicaid	FL	-
100005054	Other	FL	RR MEDICARE

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

Is NPI 1902815103 active?

Yes, as of the latest NPPES snapshot, NPI 1902815103 is active (record last updated 2021-08-25).

How do I verify Mark Eisner's NPI record?

Cross-check NPI 1902815103 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-25.