Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Jean Sadlak, PH.D.

Counseling Psychologist in Bennington, VT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659435147

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Jean Sadlak

Credential PH.D.

Sex Female

Practice address 160 Benmont Ave, Suite 20, Bennington, VT, 05201

Phone (802) 442-3520

Fax (802) 447-3392

Enumeration date Dec 20, 2006

Last updated in NPPES Mar 6, 2015

Taxonomy & licenses

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 0480000505 (VT) 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
0VN0349	Medicaid	VT	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mary Jean Sadlak practice?

The practice location on file with NPPES is in Bennington, VT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mary Jean Sadlak?

The National Provider Identifier (NPI) for Mary Jean Sadlak is 1659435147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-06.