Toni Hernalsteen, MSW
NPI 1558710343 · Clinical Social Worker · Traverse City, MI
Toni Hernalsteen, MSW is a Clinical Social Worker provider in Traverse City, MI (NPI 1558710343).
Provider details
- NPI number
- 1558710343
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
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
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 105 Hall StTraverse City, MI 49684-2288Phone: (231) 922-4850
Registry dates
- Enumerated
- 2016-06-13
- Last updated
- 2018-05-10
Frequently asked questions
- What is Toni Hernalsteen's NPI number?
- Toni Hernalsteen's National Provider Identifier (NPI) is 1558710343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Toni Hernalsteen's specialty?
- Toni Hernalsteen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Toni Hernalsteen located?
- Toni Hernalsteen's practice location on file with NPPES is 1719 S Garfield Ave, Traverse City, MI 49686-4337.
- What is Toni Hernalsteen's phone number?
- The practice phone number listed in the NPPES registry for Toni Hernalsteen is (231) 642-5938.
- Is Toni Hernalsteen's NPI active?
- Yes — Toni Hernalsteen's NPI (1558710343) is active in the NPPES registry as of the last update on 2018-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.