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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Vermillion, RN

Adult Psychiatric/Mental Health Registered Nurse in Hamilton, MT · enumerated 2014 · practices at Western Montana Mental Health Center.

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

National Provider Identifier

1285053314

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Registry record

Entity type Individual (Type 1)
Name Mary Vermillion
Credential RN
Sex Female
Practice address 1404 Westwood Dr, Hamilton, MT, 59840
Phone (406) 532-8990
Enumeration date Apr 16, 2014
Last updated in NPPES Jun 3, 2014

Taxonomy & licenses

163WP0809X Adult Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 72629 (MT) Primary
163WL0100X Lactation Consultant (Registered Nurse) Nursing Service Providers · License 72629 (MT) Secondary
163WW0101X Ambulatory Women's Health Care Registered Nurse Nursing Service Providers · License 72629 (MT) Secondary
163W00000X Registered Nurse Nursing Service Providers · License 72629 (MT) Secondary
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.

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Frequently asked questions

What specialty is Mary Vermillion?
Mary Vermillion is registered in NPPES with the primary taxonomy of Adult Psychiatric/Mental Health Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-03.