Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Waterfield Psychological Services, Pllc

Q: What is the NPI number for Waterfield Psychological Services, Pllc?

The NPI for Waterfield Psychological Services, Pllc is 1316893951, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Psychologist in Winchester, MA · enumerated 2026 · authorized official Lisa Scharff, Clinical Psychologist/Owner.

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

National Provider Identifier

1316893951

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Registry record

Entity type Organization (Type 2)

Legal business name Waterfield Psychological Services, Pllc

Practice address 75 George Rd, Winchester, MA, 01890

Phone (617) 299-0832

Enumeration date Mar 6, 2026

Last updated in NPPES Mar 6, 2026

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Lisa Scharff

Title Clinical Psychologist/Owner

Phone (617) 299-0832

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

Who is the authorized official for Waterfield Psychological Services, Pllc?

NPPES lists Lisa Scharff (Clinical Psychologist/Owner) as the authorized official for this organization.

What is the NPI number for Waterfield Psychological Services, Pllc?

The NPI for Waterfield Psychological Services, Pllc is 1316893951, a Type 2 (organization) record in the CMS NPPES registry.

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