Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Marcella R Gannon, APN, NP-RX, PMHNP-BC

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1225976475

Marcella R Gannon, APN, NP-RX, PMHNP-BC is a Psychiatric/Mental Health Registered Nurse in Denver, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2026
Specialties on file
2
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

1312 17th St # 898
Denver, CO 80202-1508
Phone: (970) 638-7775
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0808X · Licence 0175321 (CO)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence 1002066.NP (CO)

Record details

NPI number1225976475
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN , NP-RX , PMHNP-BC
Sole proprietorYes
NPI enumeratedMarch 21, 2026
Last updated in NPPESSeptember 8, 2026
Certification dateSeptember 8, 2026

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