Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mallory Lois Hislar, MSW, LCSW

Individual provider Mental Health Counselor · NPI 1306482666

Mallory Lois Hislar, MSW, LCSW is a Clinical Social Worker in Greeley, Colorado. Qualified in 2019, 7 years ago. Practices with Sondermind Provider Network LLC, a 1,258-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
7
Licensed in
CO
In the registry since
2019
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1306 11th Ave
Greeley, CO 80631-3835
Phone: (970) 347-2120
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence CSW.09927998 (CO)
Mental Health Counselor Taxonomy 101YM0800X

Record details

NPI number1306482666
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LCSW
Sole proprietorNo
NPI enumeratedNovember 21, 2019
Last updated in NPPESFebruary 22, 2022
Certification dateFebruary 22, 2022

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Sondermind Provider Network Llc — 1258 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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