Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mary Jane Niebauer, PHD
Clinical Psychologist in Butler, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790786374
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Registry record
Entity type Individual (Type 1)
Name Dr. Mary Jane Niebauer
Credential PHD
Sex Female
Practice address 325 New Castle Rd, Butler, PA, 16001
Phone (724) 285-2501
Fax (724) 477-5038
Enumeration date Aug 9, 2005
Last updated in NPPES Jan 5, 2011
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS009247L (PA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0018591130001 | 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 Mary Niebauer?
Mary Niebauer is registered in NPPES with the primary taxonomy of Clinical Psychologist. 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 2011-01-05.