Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Donna Susan Flax

Counselor in Falmouth, MA · enumerated 2010.

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

National Provider Identifier

1326354598

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Registry record

Entity type Individual (Type 1)

Name Ms. Donna Susan Flax

Sex Female

Practice address 200 Ter Heun Dr, Falmouth, MA, 02540

Phone (508) 540-6550

Fax (508) 540-7480

Enumeration date Aug 26, 2010

Last updated in NPPES Sep 6, 2010

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Primary

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 do I verify Donna Flax's NPI record?

Cross-check NPI 1326354598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326354598 active?

Yes, as of the latest NPPES snapshot, NPI 1326354598 is active (record last updated 2010-09-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-06.