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

Kelsey Arver Thelen, FNP, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1447899745

Kelsey Arver Thelen, FNP, PMHNP is a Nurse Practitioner in Lansing, Michigan. Qualified in 2019, 7 years ago. Practices with Downriver Mental Health Clinic PC, a 288-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
7
Licensed in
MI
In the registry since
2020
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

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Practice location Address checks out

4136 Legacy Pkwy
Lansing, MI 48911-4265
Phone: (517) 492-0517
Fax: (517) 882-3633
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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 4704303773 (MI)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 4704303773 (MI)

Record details

NPI number1447899745
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP , PMHNP
Sole proprietorNo
NPI enumeratedJanuary 3, 2020
Last updated in NPPESNovember 10, 2025
Certification dateNovember 10, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Downriver Mental Health Clinic Pc — 288 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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