NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Scott Messenger, MD

Dermatology Physician in Lansing, MI · enumerated 2016 · practices at Messenger & Sons Dermatology Pllc.

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

National Provider Identifier

1821441486

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Gregory Scott Messenger
Credential MD
Sex Male
Practice address 1515 Lake Lansing Rd Ste A, Lansing, MI, 48912
Fax (517) 487-2639
Enumeration date Jul 19, 2016
Last updated in NPPES Jul 16, 2020

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 4301501765 (MI) Primary
207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 4301501765 (MI) Secondary
207NI0002X Clinical & Laboratory Dermatological Immunology Physician Allopathic & Osteopathic Physicians · License 4301501765 (MI) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Gregory Messenger?
The National Provider Identifier (NPI) for Gregory Messenger is 1821441486, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Messenger practice?
The practice location on file with NPPES is in Lansing, MI. 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 2020-07-16.