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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARY LYNN JOHNSON
NPI 1003493826
Nurse Practitioner - Psychiatric/Mental Health in Boulder, CO

Active since March 26, 2021
1505 48TH ST, BOULDER, CO 80303(303) 506-9439 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 14, 2026, Mar 26, 2021 (2 updates tracked since 2021).

About Mary Lynn Johnson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY LYNN JOHNSON (NPI 1003493826) is an individual psychiatric/mental health provider in Boulder, Colorado, licensed in Colorado (APN.1002166-NP) and active in the NPI registry since March 2021.

NPPES Registry Identity

NPI1003493826
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARY LYNN JOHNSON
Location Address1505 48TH STBoulder, CO 80303-1143
Mailing Address1505 48th StBoulder, CO 80303-1143 · (303) 506-9439
Phone(303) 506-9439
Sole ProprietorYes
Enumeration DateMarch 26, 2021
Last NPPES UpdateJuly 14, 20262 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1003493826 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CO · APN.1002166-NP
Also ListedRegistered Nurse · Home HealthTaxonomy 163WH0200X · License 0094898 (CO)
1505 48TH ST, Boulder, CO 80303
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Johnson's NPI number?

The NPI number for Mary Johnson is 1003493826. It was assigned to this individual provider in the NPPES registry on March 26, 2021.

Where is Mary Johnson located?

Mary Johnson practices at 1505 48th St, Boulder, CO 80303. The listed phone number is (303) 506-9439.

What is Mary Johnson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Mary Johnson was last updated on July 14, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.