Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carly Walder, PSY.D.

Psychologist in Northbrook, IL · enumerated 2010.

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

National Provider Identifier

1659685154

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Registry record

Entity type Individual (Type 1)

Name Dr. Carly Walder

Credential PSY.D.

Sex Female

Practice address 899 Skokie Blvd, Suite 204, Northbrook, IL, 60062

Phone (847) 559-3240

Enumeration date Jul 27, 2010

Last updated in NPPES Feb 16, 2016

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 071.009161 (IL) Primary

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

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

How do I verify Carly Walder's NPI record?

Cross-check NPI 1659685154 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659685154 active?

Yes, as of the latest NPPES snapshot, NPI 1659685154 is active (record last updated 2016-02-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-16.