Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alyssa Marie Warren, MD

Psychiatry Physician in Hermiston, OR · enumerated 2017 · practices at Good Shepherd Health Care System.

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

National Provider Identifier

1811422231

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Registry record

Entity type Individual (Type 1)

Name Alyssa Marie Warren

Credential MD

Sex Female

Practice address 600 Nw 11th St Ste E33, Hermiston, OR, 97838

Phone (541) 667-3740

Fax (541) 667-8768

Enumeration date Apr 23, 2017

Last updated in NPPES Jun 11, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A-193488 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD224357 (OR) Primary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 042-0015794 (VT) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Alyssa Warren practice?

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

What is the NPI number for Alyssa Warren?

The National Provider Identifier (NPI) for Alyssa Warren is 1811422231, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Amjad Mahfoud Pediatrics Physician · Hermiston, OR NPI 1407832751 Good Shepherd Health Care System Pediatrics Physician · Hermiston, OR NPI 1336198159 Madalina Mindrut Pediatrics Physician · Hermiston, OR NPI 1831345131 Daniel Canal Tristancho Pediatrics Physician · Hermiston, OR NPI 1336401470 Ekene Ajufo Pediatrics Physician · Hermiston, OR NPI 1962853556 Taylor Buntin Mental Health Counselor · Hermiston, OR NPI 1053042192

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-11.