Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron James Polich, MSN, ARNP, RN

Psychiatric/Mental Health Nurse Practitioner in Seattle, WA · enumerated 2022 · practices at Matrx Pharmacy, LLC.

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

National Provider Identifier

1821708058

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Registry record

Entity type Individual (Type 1)

Name Aaron James Polich

Credential MSN, ARNP, RN

Sex Male

Practice address 2212 S Jackson St, Seattle, WA, 98144

Phone (206) 324-6999

Fax (206) 322-6306

Enumeration date Nov 29, 2022

Last updated in NPPES Jul 11, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 61512266 (WA) Secondary

163W00000X Registered Nurse Nursing Service Providers · License RN0000266239 (TN) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP61510683 (WA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

How do I verify Aaron Polich's NPI record?

Cross-check NPI 1821708058 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821708058 active?

Yes, as of the latest NPPES snapshot, NPI 1821708058 is active (record last updated 2024-07-11).

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Kevin Cassidy Counselor · Seattle, WA NPI 1730500224 Diana Katz Psychiatric/Mental Health Nurse Practitioner · Seattle, WA NPI 1093193047 Le Tuyet Counselor · Seattle, WA NPI 1548638760 Jina Kim Registered Nurse · Seattle, WA NPI 1851756159 Brady Roy Counselor · Seattle, WA NPI 1376098939 Molly Mcdonald Addiction (Substance Use Disorder) Counselor · Seattle, WA NPI 1639619869 Seth Boun Social Worker · Seattle, WA NPI 1063946598 Samantha Jones Counselor · Seattle, WA NPI 1831615566

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-11.