NPI Portal NPI Lookup & Verification

Dr. Gregory D Castleman, D.C.

Dr. Gregory D Castleman is a Rehabilitation Chiropractor provider (Chiropractor) practicing in Holiday, FL, registered in the NPPES registry with NPI 1295946556 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Integrated Medical Group Incorporated (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI 1295946556
Entity type Individual (Type 1)
Name Dr. Gregory D Castleman
Credential D.C.
Sex Male
Practice address 2401 GRAND BLVD, Holiday, FL, 34690
Phone 7279345757
Fax 7279376258
Enumeration date 2007-05-25
Last updated in NPPES 2010-07-13

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111NR0400X Rehabilitation Chiropractor Primary CH 8060 FL

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details
Provider: Gregory Castleman, D.C.
NPI: 1295946556
Taxonomy: 111NR0400X (Rehabilitation Chiropractor)
Address: 2401 GRAND BLVD, Holiday, FL, 34690

Other providers at this practice address

NPI Name Type Specialty Location
1235125428 David Huber Individual Chiropractor Holiday, FL
1578782132 Integrated Medical Group Incorporated Organization Chiropractor Holiday, FL

Verify this record

Cross-check NPI 1295946556 against the authoritative CMS record: view Dr. Gregory D Castleman on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Gregory Castleman's NPI record?
Cross-check NPI 1295946556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1295946556 active?
Yes — as of the latest NPPES snapshot, NPI 1295946556 is active (record last updated 2010-07-13).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-07-13.