MRS. SARAH MARTHA ALTVATER LLMSW
NPI 1417654245
Social Worker - Clinical in Byron Center, MI

Active since February 13, 2023
7791 BYRON CENTER AVE SW, BYRON CENTER, MI 49315(616) 499-4711(888) 336-9355 Get Directions Write a Review

NPPES record last updated: July 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Sarah Martha Altvater Llmsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. SARAH MARTHA ALTVATER LLMSW (NPI 1417654245) is an individual clinical provider in Byron Center, Michigan, licensed in Michigan (6851115899) and active in the NPI registry since February 2023.

NPPES Registry Identity

NPI1417654245
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. SARAH MARTHA ALTVATERCredential: LLMSW
Location Address7791 BYRON CENTER AVE SWByron Center, MI 49315-8412
Mailing Address7791 Byron Center Ave SwByron Center, MI 49315-8412 · (616) 499-4711 · Fax (888) 336-9355
Fax(888) 336-9355
Sole ProprietorNo
Enumeration DateFebruary 13, 2023
Last NPPES UpdateJuly 17, 2025
NPPES CertifiedJuly 17, 2025
NPI 1417654245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in MI · 6851115899
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
7791 BYRON CENTER AVE SW, Byron Center, MI 49315

Other Identifiers 5

Medicaid1144207200MI
Medicaid1679653810MI
Medicaid1417654245MI
Medicaid1508942764MI
Medicaid1881764942MI

Other Providers at the Same Location NPPES 19

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Professional)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Social Worker
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Counselor (Professional)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Social Worker (Clinical)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Counselor (Mental Health)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Social Worker (Clinical)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Social Worker (Clinical)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315
Counselor (Professional)
7791 BYRON CENTER AVE SW
BYRON CENTER, MI 49315

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sarah Altvater's NPI number?

The NPI number for Sarah Altvater is 1417654245. It was assigned to this individual provider in the NPPES registry on February 13, 2023.

Where is Sarah Altvater located?

Sarah Altvater practices at 7791 Byron Center Ave SW, Byron Center, MI 49315. The listed phone number is (616) 499-4711.

What is Sarah Altvater's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Sarah Altvater was last updated on July 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.