Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Heather L. Steffen, PSYD

Psychologist in Boulder, CO · enumerated 2008.

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

National Provider Identifier

1457539603

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Registry record

Entity type Individual (Type 1)

Name Dr. Heather L. Steffen

Credential PSYD

Sex Female

Practice address 4770 Baseline Rd Ste 200, Boulder, CO, 80303

Phone (720) 893-0842

Fax (617) 507-1426

Enumeration date Feb 8, 2008

Last updated in NPPES Apr 17, 2020

Taxonomy & licenses

103TH0004X Health Psychologist Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 0003610 (CO) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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

Where does Heather Steffen practice?

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

What is the NPI number for Heather Steffen?

The National Provider Identifier (NPI) for Heather Steffen is 1457539603, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-17.