NPI Portal NPI Lookup & Verification

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

Charles M Callahan, M.D.

Infectious Disease Physician in Cape Coral, FL · enumerated 2005 · practices at Heart and Soul Massage Therapy.

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

National Provider Identifier

1023095510

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Charles M Callahan
Credential M.D.
Sex Male
Practice address Cape Coral, FL, 33990
Phone (239) 424-2095
Fax (239) 343-4178
Enumeration date Dec 27, 2005
Last updated in NPPES Sep 24, 2025

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

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License ME68793 (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
060064707 Other FL RAILROAD
281231200 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

What is the NPI number for Charles Callahan?
The National Provider Identifier (NPI) for Charles Callahan is 1023095510, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles Callahan practice?
The practice location on file with NPPES is in Cape Coral, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-24.