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

Mackenzie Mullen Ross, NP

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1033627237

Mackenzie Mullen Ross, NP is a Nurse Practitioner in Portland, Maine. Qualified in 2018, 8 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts and Maine.

Years since qualifying
8
Licensed in
MA, ME
In the registry since
2018
Specialties on file
3
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

165 Lancaster St
Portland, ME 04101-2406
Phone: (207) 874-1030
Fax: (207) 874-1044
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence CNP191293 (ME)
Psychiatric/Mental Health Registered Nurse Taxonomy 163WP0808X · Licence RN2312246 (MA)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence 2312246 (MA)

Record details

NPI number1033627237
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJanuary 22, 2018
Last updated in NPPESJanuary 13, 2020
Certification dateJanuary 13, 2020
Mailing address165 Lancaster St, Portland, ME 04101-2406

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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