Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Matthew Slavsky, LCSW
Clinical Social Worker in Tempe, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538230958
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Registry record
Entity type Individual (Type 1)
Name Mr. Matthew Slavsky
Credential LCSW
Sex Male
Practice address 2120 S Mcclintock Dr, Suite 105, Tempe, AZ, 85282
Phone (480) 804-0326
Fax (480) 804-0083
Enumeration date Nov 10, 2006
Last updated in NPPES Oct 9, 2015
Taxonomy & licenses
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LCSW11893 (AZ) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCSW-11893 (AZ) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 386865 | Medicaid | AZ | - |
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
How do I verify Matthew Slavsky's NPI record?
Cross-check NPI 1538230958 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538230958 active?
Yes, as of the latest NPPES snapshot, NPI 1538230958 is active (record last updated 2015-10-09).
Other providers at this practice address
Browse all → Christia Lewis Professional Counselor · Tempe, AZ NPI 1013974914 Sandra Decuzzi Clinical Social Worker · Tempe, AZ NPI 1902864945 Susan Mccord Clinical Social Worker · Tempe, AZ NPI 1245285329 Alicia Kostov Clinical Social Worker · Tempe, AZ NPI 1649283532 Mary Horton Clinical Social Worker · Tempe, AZ NPI 1538278221 Tracey Oppenheim Psychiatry Physician · Tempe, AZ NPI 1356436836 John Rhiner Clinical Social Worker · Tempe, AZ NPI 1679657399 Michael Boylan Clinical Social Worker · Tempe, AZ NPI 1215072764
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-09.