Mallory Hislar, MSW, LCSW
NPI 1306482666 · Clinical Social Worker · Greeley, CO
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory Hislar, MSW, LCSW is a Clinical Social Worker provider in Greeley, CO (NPI 1306482666).
Provider details
- NPI number
- 1306482666
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LCSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-11-21
- Last updated
- 2022-02-22
- Certified
- 2022-02-22
Frequently asked questions
- What is Mallory Hislar's NPI number?
- Mallory Hislar's National Provider Identifier (NPI) is 1306482666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Hislar's specialty?
- Mallory Hislar is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mallory Hislar located?
- Mallory Hislar's practice location on file with NPPES is 1306 11th Ave, Greeley, CO 80631-3835.
- What is Mallory Hislar's phone number?
- The practice phone number listed in the NPPES registry for Mallory Hislar is (970) 347-2120.
- Does Mallory Hislar accept Medicare?
- Mallory Hislar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory Hislar's NPI active?
- Yes — Mallory Hislar's NPI (1306482666) is active in the NPPES registry as of the last update on 2022-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.