Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susan S Hagen, M.D.

Surgery Physician in Boulder, CO · enumerated 2007.

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

National Provider Identifier

1427267632

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Registry record

Entity type Individual (Type 1)

Name Susan S Hagen

Credential M.D.

Sex Female

Practice address 4743 Arapahoe Ave, Suite 100, Boulder, CO, 80303

Phone (303) 443-2123

Fax (303) 443-9497

Enumeration date May 22, 2007

Last updated in NPPES Nov 9, 2017

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License DR.0050231 (CO) 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
62688821	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 specialty is Susan Hagen?

Susan Hagen is registered in NPPES with the primary taxonomy of Surgery 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-09.