Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Melissa Marie Markowtiz, LCSW
Clinical Social Worker in Exton, PA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831410398
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Registry record
Entity type Individual (Type 1)
Name Melissa Marie Markowtiz
Credential LCSW
Sex Female
Practice address 403 W Lincoln Hwy, Suite 206 A, Exton, PA, 19341
Phone (610) 363-2088
Fax (610) 363-2080
Enumeration date Jun 18, 2010
Last updated in NPPES May 27, 2015
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License CW016571 (PA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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 Melissa Markowtiz?
Melissa Markowtiz is registered in NPPES with the primary taxonomy of Clinical 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-27.