Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Kilsan Koh, M.D.

Q: What is the NPI number for Kilsan Koh?

The National Provider Identifier (NPI) for Kilsan Koh is 1023114006, a Type 1 (individual) record in the CMS NPPES registry.

Surgery Physician in Boulder, CO · enumerated 2006.

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

National Provider Identifier

1023114006

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Registry record

Entity type Individual (Type 1)

Name Kilsan Koh

Credential M.D.

Sex Male

Practice address Boulder, CO, 80304

Phone (303) 443-1008

Fax (303) 417-1111

Enumeration date Sep 16, 2006

Last updated in NPPES Dec 15, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 29339 (CO) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G87774 (CA) Secondary

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
O1293398	Medicaid	CO	-

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 is the NPI number for Kilsan Koh?

The National Provider Identifier (NPI) for Kilsan Koh is 1023114006, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kilsan Koh practice?

The practice location on file with NPPES is in Boulder, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-15.