Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Helen Marie Watson, APRN, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1790415750

Helen Marie Watson, APRN, PMHNP is a Nurse Practitioner in Portland, Maine. Qualified in 2022, 4 years ago. Practices with Mainehealth, a 2,615-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying
4
Licensed in
ME
In the registry since
2022
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

See every abbreviation used in this directory →

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Practice location Address checks out

165 Lancaster St
Portland, ME 04101-2406
Phone: (844) 292-0111
Show map & directions

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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 CNP221249 (ME)

Record details

NPI number1790415750
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , PMHNP
Sole proprietorNo
NPI enumeratedJune 13, 2022
Last updated in NPPESMarch 22, 2024
Certification dateDecember 1, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients24
Services billed 123 a service is one billed item, such as a visit, a test or a procedure
Average patient age45

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Other providers in Portland