NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martin W. Isenman, MD

Internal Medicine Physician in Melbourne, FL · enumerated 2005.

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

National Provider Identifier

1366433021

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Martin W. Isenman
Credential MD
Sex Male
Practice address 1223 Gateway Drive, Melbourne, FL, 32901
Fax (321) 409-3685
Enumeration date Nov 2, 2005
Last updated in NPPES Apr 20, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME26700 (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
110051318 Other FL RR MEDICARE
038998600 Medicaid FL -

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 Martin Isenman practice?
The practice location on file with NPPES is in Melbourne, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martin Isenman?
The National Provider Identifier (NPI) for Martin Isenman is 1366433021, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-20.