Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nathan Tillotson

Obstetrics Physician in Caldwell, ID · enumerated 2006.

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

National Provider Identifier

1770670473

Verified

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Registry record

Entity type Individual (Type 1)

Name Nathan Tillotson

Sex Male

Practice address 315 E Elm St Ste 310, Caldwell, ID, 83605

Phone (208) 454-2035

Fax (208) 454-1065

Enumeration date Oct 6, 2006

Last updated in NPPES Apr 3, 2023

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 02426 (KY) Secondary

207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License 0546950 (KS) Primary

Other identifiers

Identifier	Type	State	Issuer
200048030A	Medicaid	OK	-

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.

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Frequently asked questions

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.

What specialty is Nathan Tillotson?

Nathan Tillotson is registered in NPPES with the primary taxonomy of Obstetrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Etta Nevel Obstetrics & Gynecology Physician · Caldwell, ID NPI 1588616627 Eugene Kaplan Gynecology Physician · Caldwell, ID NPI 1457419210

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-03.