Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mary Elizabeth Steiner, FNP-C, PMHNP-C

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1831557958

Mary Elizabeth Steiner, FNP-C, PMHNP-C is a Nurse Practitioner in Gilbert, Arizona. Qualified in 2015, 11 years ago. Practices with Unchained-Gilbert LLC, a 2-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
11
Licensed in
AZ
In the registry since
2016
Specialties on file
2
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

201 W Guadalupe Rd Ste 302
Gilbert, AZ 85233-3333
Phone: (480) 536-9473
Fax: (480) 536-9744
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2711 S Gordon, Mesa, AZ 85209-7349 — (480) 748-9823

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP8398 (AZ)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence AP8398 (AZ)

Record details

NPI number1831557958
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C , PMHNP-C
Sole proprietorNo
NPI enumeratedFebruary 3, 2016
Last updated in NPPESSeptember 2, 2025
Certification dateSeptember 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Unchained-Gilbert Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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