NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Ellis Darnaby, M.D.

Family Medicine Physician in Rensselaer, IN · enumerated 2005.

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

National Provider Identifier

1811983356

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Robert Ellis Darnaby
Credential M.D.
Sex Male
Practice address 124 W Washington St, Rensselaer, IN, 47978
Phone (219) 866-4135
Fax (219) 866-0803
Enumeration date Sep 20, 2005
Last updated in NPPES Aug 27, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A01028943 (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
100142840A Medicaid IN -
100142840 Medicaid IN -
080001859 Other IN PALMETTO GBA

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 specialty is Robert Darnaby?
Robert Darnaby is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-27.