Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marlene C. Williams, MT-BC
Music Therapist in Havertown, PA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720267164
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Registry record
Entity type Individual (Type 1)
Name Marlene C. Williams
Credential MT-BC
Sex Female
Practice address 412 E Eagle Rd, Havertown, PA, 19083
Phone (610) 449-9669
Fax (610) 449-5566
Enumeration date Nov 2, 2007
Last updated in NPPES Nov 2, 2007
Taxonomy & licenses
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 14559 (PA) Secondary
225A00000X Music Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 14559 (PA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1017128200001 | Medicaid | PA | - |
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 Marlene Williams?
Marlene Williams is registered in NPPES with the primary taxonomy of Music Therapist. 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-02.