NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Louis N Finelli, D.O.

Forensic Pathology Physician in Rockville, MD · enumerated 2005.

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

National Provider Identifier

1598749897

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Louis N Finelli
Credential D.O.
Sex Male
Practice address 1413 Research Blvd, Bldg 102, Rockville, MD, 20850
Fax (301) 295-5932
Enumeration date Dec 1, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207ZF0201X Forensic Pathology Physician Allopathic & Osteopathic Physicians · License 156433 (MA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Where does Louis Finelli practice?
The practice location on file with NPPES is in Rockville, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Louis Finelli?
The National Provider Identifier (NPI) for Louis Finelli is 1598749897, 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 2007-07-08.