NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Leslie Grogan

Physical Therapy Assistant in Madison, MS · enumerated 2011.

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

National Provider Identifier

1811292501

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Mark Leslie Grogan
Sex Male
Practice address 401 Baptist Dr, Suite 306, Madison, MS, 39110
Fax (601) 607-7430
Enumeration date Jan 11, 2011
Last updated in NPPES Jan 11, 2011

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTA4334 (MS) Primary

Other identifiers

Identifier Type State Issuer
640881013 Other MS TAX ID
0220392 Medicaid MS -

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 Mark Grogan practice?
The practice location on file with NPPES is in Madison, MS. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Grogan?
The National Provider Identifier (NPI) for Mark Grogan is 1811292501, 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 2011-01-11.