Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nancy Ann Klug, PSYD

Psychologist in Cambridge, MA · enumerated 2007 · practices at Kirr Associates Inc.

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

National Provider Identifier

1699811109

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Registry record

Entity type Individual (Type 1)

Name Dr. Nancy Ann Klug

Credential PSYD

Sex Female

Practice address 2557 Massachusetts Ave, Cambridge, MA, 02140

Phone (617) 661-5915

Enumeration date Jan 30, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 6215 (MA) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
WO5077	Other	MA	BCBS OF MA
754054	Other	MA	TUFTS HEALTH PLAN

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

Is NPI 1699811109 active?

Yes, as of the latest NPPES snapshot, NPI 1699811109 is active (record last updated 2007-07-08).

How do I verify Nancy Klug's NPI record?

Cross-check NPI 1699811109 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.