NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Alan Merrell, M.D.

Orthopaedic Hand Surgery Physician in Indianapolis, IN · enumerated 2006.

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

National Provider Identifier

1679502165

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Alan Merrell
Credential M.D.
Sex Male
Practice address 8501 Harcourt Rd, Indianapolis, IN, 46260
Fax (317) 808-8802
Enumeration date Jun 30, 2006
Last updated in NPPES Apr 1, 2024

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 01063616A (IN) Secondary
207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 01063616A (IN) 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
7770886 Other IN AETNA
000000527570 Other IN ANTHEM
200868700 Medicaid IN -
P00964083 Other IN RR MEDICARE PIN FOR IU
000000708751 Other IN ANTHEM PROVIDER NUMBER UNDER TIN 35-2030653
P00657824 Other IN RR MEDICARE

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 Gregory Merrell practice?
The practice location on file with NPPES is in Indianapolis, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Merrell?
The National Provider Identifier (NPI) for Gregory Merrell is 1679502165, 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 2024-04-01.