Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore W Colwell, MD

Obstetrics & Gynecology Physician in Caldwell, ID · enumerated 2006 · practices at West Valley Medical Group Specialty Services LLC.

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

National Provider Identifier

1598735391

Verified

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Registry record

Entity type Individual (Type 1)

Name Theodore W Colwell

Credential MD

Sex Male

Practice address 315 Elm Street, Ste 310, Caldwell, ID, 83605

Phone (208) 454-2035

Fax (208) 454-1065

Enumeration date Jan 24, 2006

Last updated in NPPES Jan 6, 2022

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License D93712 (CA) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License M-4462 (ID) 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
000010003390	Other	ID	REGENCE BLUE SHIELD OF ID
003644200	Medicaid	ID	-
291948	Medicaid	OR	-
44628	Other	ID	BLUE CROSS OF IDAHO

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 1598735391 active?

Yes, as of the latest NPPES snapshot, NPI 1598735391 is active (record last updated 2022-01-06).

How do I verify Theodore Colwell's NPI record?

Cross-check NPI 1598735391 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 →

Michael Robinson Obstetrics & Gynecology Physician · Caldwell, ID NPI 1275533184 Paul Mcconnel Family Medicine Physician · Caldwell, ID NPI 1407876071 Karen Carloy Adult Health Nurse Practitioner · Caldwell, ID NPI 1700949260 Jessica Fu Obstetrics & Gynecology Physician · Caldwell, ID NPI 1710185111 West Valley Medical Group Specialty Services LLC Obesity Medicine (Obstetrics & Gynecology) Physician · Caldwell, ID NPI 1245659093

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-06.