Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Anastasia Sullwold Ristau, PHD LP

Psychologist in Chaska, MN · enumerated 2006.

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

National Provider Identifier

1124049903

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Registry record

Entity type Individual (Type 1)

Name Dr. Anastasia Sullwold Ristau

Credential PHD LP

Sex Female

Practice address 111 Hundertmark Rd Ste 205n, Chaska, MN, 55318

Phone (952) 903-1350

Fax (952) 426-3856

Enumeration date Jul 21, 2006

Last updated in NPPES Nov 10, 2020

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License LP4538 (MN) Primary

Other identifiers

Identifier	Type	State	Issuer
949674200	Medicaid	MN	-

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.

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Frequently asked questions

Where does Anastasia Ristau practice?

The practice location on file with NPPES is in Chaska, MN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Anastasia Ristau?

The National Provider Identifier (NPI) for Anastasia Ristau is 1124049903, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-10.