Sonja Visser, LMSW
NPI 1508995671 · Clinical Social Worker · Grand Rapids, MI
Sonja Visser, LMSW is a Clinical Social Worker provider in Grand Rapids, MI (NPI 1508995671).
Provider details
- NPI number
- 1508995671
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 6801062663 (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
- 2007-03-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sonja Visser's NPI number?
- Sonja Visser's National Provider Identifier (NPI) is 1508995671, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Visser's specialty?
- Sonja Visser is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sonja Visser located?
- Sonja Visser's practice location on file with NPPES is 800 E Beltline Ave Ne, Grand Rapids, MI 49525-5848.
- What is Sonja Visser's phone number?
- The practice phone number listed in the NPPES registry for Sonja Visser is (616) 456-6135.
- Is Sonja Visser's NPI active?
- Yes — Sonja Visser's NPI (1508995671) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.