Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Heidi Lynn Dijak, LMSW, CAADC
Social Worker in Saginaw, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578693164
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ms. Heidi Lynn Dijak
Credential LMSW, CAADC
Sex Female
Practice address 3400 S Washington Rd, Saginaw, MI, 48601
Phone (989) 755-1072
Fax (989) 755-1401
Enumeration date Mar 6, 2007
Last updated in NPPES Feb 24, 2020
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6801046978 (MI) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Heidi Dijak?
Heidi Dijak is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Donald Mclaughlin Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1720118532 Great Lakes Bay Health Centers Federally Qualified Health Center (FQHC) · Saginaw, MI NPI 1427176502 Holy Cross Youth and Family Services Children's Substance Abuse Rehabilitation Facility · Saginaw, MI NPI 1689947996 Dujana Roberts Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1417212689 Jennifer Marden Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1417202524 Sarah Cobb Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1073860151 Sally Mims Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1275884892 Mia Krapf Addiction (Substance Use Disorder) Counselor · Saginaw, MI NPI 1306272695
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-24.