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Oak Hill Psychological Services, Pllc

Psychologist in Herndon, VA · enumerated 2020 · authorized official Hayley Sherwood, Owner & Clinical Psychologist.

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

National Provider Identifier

1447868575

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Registry record

Entity type Organization (Type 2)
Legal business name Oak Hill Psychological Services, Pllc
Practice address 2579 John Milton Dr Ste 210, Herndon, VA, 20171
Phone (703) 214-4924
Fax (107) 214-4925
Enumeration date Jul 15, 2020
Last updated in NPPES Jul 15, 2020

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Hayley Sherwood
Title Owner & Clinical Psychologist
Phone (703) 214-4924

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.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-07-15. Verify at npiregistry.cms.hhs.gov.
Where is Oak Hill Psychological Services, Pllc located?
The practice location on file with NPPES is in Herndon, VA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-15.