NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Merrill Ritter, MD

Orthopaedic Surgery Physician in Mooresville, IN · enumerated 2006.

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

National Provider Identifier

1588634307

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Merrill Ritter
Credential MD
Sex Male
Practice address 1199 Hadley Rd, Mooresville, IN, 46158
Fax (317) 831-9347
Enumeration date Jan 24, 2006
Last updated in NPPES Mar 7, 2008

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 01020175 (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
00000018855 Other IN BCBS
1080620 Other IN UHC
5525035 Other IN AETNA
006726 Other IN SIHO
4178250001 Other IN DME

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

Is NPI 1588634307 active?
Yes, as of the latest NPPES snapshot, NPI 1588634307 is active (record last updated 2008-03-07).
How do I verify Merrill Ritter's NPI record?
Cross-check NPI 1588634307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-07.