Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Anne M. O'Malley, RD,LDN

Registered Dietitian in Oak Lawn, IL · enumerated 2006.

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

National Provider Identifier

1609808229

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Registry record

Entity type Individual (Type 1)

Name Mrs. Anne M. O'Malley

Credential RD,LDN

Sex Female

Practice address 4440 W 95th St, Oak Lawn, IL, 60453

Phone (708) 684-1209

Fax (708) 684-4485

Enumeration date Jul 6, 2006

Last updated in NPPES Sep 7, 2023

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

Other identifiers

Identifier	Type	State	Issuer
K25801	Other	IL	PROVIDER NUMBER

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 1609808229 active?

Yes, as of the latest NPPES snapshot, NPI 1609808229 is active (record last updated 2023-09-07).

How do I verify Anne O'Malley's NPI record?

Cross-check NPI 1609808229 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 2023-09-07.