NPI Portal NPI Lookup & Verification

Maggie Marsh

Maggie Marsh is a Mental Health Counselor provider (Counselor) practicing in Boulder, CO, registered in the NPPES registry with NPI 1336755255 since 2020.

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NPI 1336755255
Entity type Individual (Type 1)
Name Maggie Marsh
Sex Female
Practice address 975 NORTH ST, Boulder, CO, 80304
Phone 3034038500
Enumeration date 2020-09-16
Last updated in NPPES 2023-09-25

Taxonomy & licenses

Taxonomy code Specialty Primary License State
390200000X Student in an Organized Health Care Education/Training Program Secondary
101YM0800X Mental Health Counselor Primary
Copy-ready billing details
Provider: Maggie Marsh
NPI: 1336755255
Taxonomy: 101YM0800X (Mental Health Counselor)
Address: 975 NORTH ST, Boulder, CO, 80304

Other providers at this practice address

NPI Name Type Specialty Location
1922043645 Mapleton Hill Orthopaedics PC Organization Specialist Boulder, CO
1760590533 Katherine Hauge Individual Physical Therapist Boulder, CO
1609167691 Ursula Herrmann Individual Professional Counselor Boulder, CO
1669723235 Lauren Greenwell Individual Addiction (Substance Use Disorder) Counselor Boulder, CO
1760983332 Kimberlee Aragon Individual Peer Specialist Boulder, CO
1750861803 Francisco Santiago Individual Mental Health Counselor Boulder, CO
1063020774 Jessica Bailey Individual Mental Health Counselor Boulder, CO
1104540939 Rebekah Dahl Individual Pharmacist Boulder, CO

Verify this record

Cross-check NPI 1336755255 against the authoritative CMS record: view Maggie Marsh on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Maggie Marsh 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 Maggie Marsh?
The National Provider Identifier (NPI) for Maggie Marsh is 1336755255, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-09-25.