Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Melissa A Dietz, LSW
Social Worker in Mishawaka, IN · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902644271
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Registry record
Entity type Individual (Type 1)
Name Melissa A Dietz
Credential LSW
Sex Female
Practice address 1818 Went Ave, Mishawaka, IN, 46545
Phone (574) 254-0229
Enumeration date Jul 19, 2024
Last updated in NPPES Jul 19, 2024
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 99125987A (IN) 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
Is NPI 1902644271 active?
Yes, as of the latest NPPES snapshot, NPI 1902644271 is active (record last updated 2024-07-19).
How do I verify Melissa Dietz's NPI record?
Cross-check NPI 1902644271 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Scott Tafelski Mental Health Counselor · Mishawaka, IN NPI 1821190810 Krystina Davis Mental Health Counselor · Mishawaka, IN NPI 1518265842 Amanda Einselen Mental Health Counselor · Mishawaka, IN NPI 1154763985 Robert Vanderwal Mental Health Counselor · Mishawaka, IN NPI 1265867204 Elizabeth Kerns Counselor · Mishawaka, IN NPI 1710420690
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-19.