Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Melissa Dawn Williamson

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1801734611

Melissa Dawn Williamson is a Nurse Practitioner in Butte, Montana. Qualified in 2025, 1 year ago. Accepts Medicare assignment. Licensed in Montana.

Years since qualifying
1
Licensed in
MT
In the registry since
2026
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Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 4832
Butte, MT 59702-4832
Phone: (406) 498-8311
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence NUR-APRN-LIC-287031 (MT)

Record details

NPI number1801734611
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 23, 2026
Last updated in NPPESMarch 23, 2026
Certification dateMarch 23, 2026
Mailing addressPo Box 4832, Butte, MT 59702-4832

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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