Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marianna Leonor Litovich, PH.D.
Psychologist in South Hadley, MA · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801026380
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Registry record
Entity type Individual (Type 1)
Name Dr. Marianna Leonor Litovich
Credential PH.D.
Sex Female
Practice address 20 Country Ln, South Hadley, MA, 01075
Phone (413) 530-1422
Enumeration date Jul 20, 2009
Last updated in NPPES Jul 20, 2009
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD 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 Marianna Litovich?
Marianna Litovich is registered in NPPES with the primary taxonomy of 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-20.