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Theresa E. Hammerquist, MSN, APRN, NP-C, CNP

Primary Care Nurse Practitioner in Martin, SD · enumerated 2018 · practices at Horizon Health Care Inc..

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

National Provider Identifier

1982194049

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Registry record

Entity type Individual (Type 1)
Name Theresa E. Hammerquist
Credential MSN, APRN, NP-C, CNP
Sex Female
Practice address 109 Pugh St, Martin, SD, 57551
Phone (605) 685-6868
Enumeration date May 15, 2018
Last updated in NPPES May 15, 2018

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CP001376 (SD) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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.

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Frequently asked questions

Is NPI 1982194049 active?
Yes, as of the latest NPPES snapshot, NPI 1982194049 is active (record last updated 2018-05-15).
How do I verify Theresa Hammerquist's NPI record?
Cross-check NPI 1982194049 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 2018-05-15.