Tammy Mcmillian, PH.D., LMSW
NPI 1639235898 · Clinical Social Worker · Boyne City, MI
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Mcmillian, PH.D., LMSW is a Clinical Social Worker provider in Boyne City, MI (NPI 1639235898).
Provider details
- NPI number
- 1639235898
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- PH.D., LMSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6801070736 (MI)
Specialties & taxonomies
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
19 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
Mailing address
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2019-01-14
Frequently asked questions
- What is Tammy Mcmillian's NPI number?
- Tammy Mcmillian's National Provider Identifier (NPI) is 1639235898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Mcmillian's specialty?
- Tammy Mcmillian is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Tammy Mcmillian located?
- Tammy Mcmillian's practice location on file with NPPES is 701 S Park St, Boyne City, MI 49712-1535.
- What is Tammy Mcmillian's phone number?
- The practice phone number listed in the NPPES registry for Tammy Mcmillian is (231) 582-0553.
- Does Tammy Mcmillian accept Medicare?
- Tammy Mcmillian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Mcmillian's NPI active?
- Yes — Tammy Mcmillian's NPI (1639235898) is active in the NPPES registry as of the last update on 2019-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.