Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Sarah Elizabeth Hasler, RD
Registered Dietitian in Chicago, IL · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942830252
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Registry record
Entity type Individual (Type 1)
Name Ms. Sarah Elizabeth Hasler
Credential RD
Sex Female
Practice address 725 W Montrose Ave, Chicago, IL, 60613
Phone (773) 929-1700
Enumeration date Jan 26, 2020
Last updated in NPPES Jan 26, 2020
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 164007787 (IL) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration.
About the RD 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.
Frequently asked questions
What is the NPI number for Sarah Hasler?
The National Provider Identifier (NPI) for Sarah Hasler is 1942830252, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sarah Hasler practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-26.