Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Dee Tietsema III, NP

Psychiatric/Mental Health Nurse Practitioner in Alamosa, CO · enumerated 2014.

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

National Provider Identifier

1447652409

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Registry record

Entity type Individual (Type 1)

Name Donald Dee Tietsema III

Credential NP

Sex Male

Practice address 8745 County Road 9 S, Alamosa, CO, 81101

Phone (719) 589-3671

Fax (719) 587-6824

Enumeration date Sep 22, 2014

Last updated in NPPES Feb 11, 2021

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 4704274155 (MI) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 1627153 (CO) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 991309 (CO) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1447652409 active?

Yes, as of the latest NPPES snapshot, NPI 1447652409 is active (record last updated 2021-02-11).

How do I verify Donald Tietsema's NPI record?

Cross-check NPI 1447652409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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San Luis Valley Community Mental Health Center Mental Health Clinic/Center (Including Community Mental Health Center) · Alamosa, CO NPI 1063406999 Carol Cotter Clinical Social Worker · Alamosa, CO NPI 1891886602 Jennifer Silva Clinical Social Worker · Alamosa, CO NPI 1720149289 Therese Peloquin Counselor · Alamosa, CO NPI 1912054347 Laurie Billman Professional Counselor · Alamosa, CO NPI 1538213210 Gregory Caesar Mental Health Counselor · Alamosa, CO NPI 1477687978 Audrea Garcia Mental Health Counselor · Alamosa, CO NPI 1336273879 James Grant Counseling Psychologist · Alamosa, CO NPI 1427182880

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-11.