What is Mara Trefry's NPI number?

Mara Trefry's National Provider Identifier (NPI) is 1518397934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mara Trefry's specialty?

Mara Trefry is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Mara Trefry located?

Mara Trefry's practice location on file with NPPES is 2891 Blue Sky Dr, Howell, MI 48843-9738.

What is Mara Trefry's phone number?

The practice phone number listed in the NPPES registry for Mara Trefry is (517) 258-2189.

Is Mara Trefry's NPI active?

Yes — Mara Trefry's NPI (1518397934) is active in the NPPES registry as of the last update on 2026-01-30.

IndividualActive

Mara Trefry, LMSW

NPI 1518397934 · Clinical Social Worker · Howell, MI

Mara Trefry, LMSW is a Clinical Social Worker provider in Howell, MI (NPI 1518397934).

Provider details

NPI number: 1518397934
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LMSW
Sex: Female
Sole proprietor: Yes
License: 6801096182 (MI)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 6801096182 (MI)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(77/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
12 yrs in NPPES registry
Profile completeness38% of score
100% 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

2891 Blue Sky Dr

Howell, MI 48843-9738

Phone: (517) 258-2189

Street-level locationGet directions

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Mailing address