Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Mariel Catherine Marfongelli, PMHNP-BC

Individual provider Psychiatric Hospital · NPI 1639615685

MS. Mariel Catherine Marfongelli, PMHNP-BC is a Nurse Practitioner in Boston, Massachusetts. Qualified in 2016, 10 years ago. Practices with Mass General Brigham Medical Group Northern Massachusetts Inc, a 819-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Licensed in
MA
In the registry since
2017
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

537 E 6th St Apt 1
Boston, MA 02127-3070
Phone: (617) 435-9004
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric Hospital (primary) Taxonomy 283Q00000X · Licence RN2299436 (MA)

Record details

NPI number1639615685
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP-BC
Sole proprietorYes
NPI enumeratedJanuary 15, 2017
Last updated in NPPESJanuary 15, 2017

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Mass General Brigham Medical Group Northern Massachusetts Inc — 819 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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