Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Theresa Marie Tengler, RD

Registered Dietitian in Delafield, WI · enumerated 2011 · practices at Kettle Moraine Health Center, S.C..

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

National Provider Identifier

1588949028

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Registry record

Entity type Individual (Type 1)

Name Mrs. Theresa Marie Tengler

Credential RD

Sex Female

Practice address 2725 Hillside Dr Ste A, Delafield, WI, 53018

Phone (262) 646-2123

Enumeration date Oct 17, 2011

Last updated in NPPES Oct 17, 2011

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 01044099 (WI) Primary

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

Other identifiers

Identifier	Type	State	Issuer
01044099	Other	WI	ADA

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 Theresa Tengler's NPI record?

Cross-check NPI 1588949028 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588949028 active?

Yes, as of the latest NPPES snapshot, NPI 1588949028 is active (record last updated 2011-10-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-17.