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

Jennifer Mathisen Maher, NP

Individual provider Acute Care Nurse Practitioner · NPI 1396009643

Jennifer Mathisen Maher, NP is a Nurse Practitioner in Winchester, Massachusetts. Qualified in 2010, 16 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Licensed in
MA
In the registry since
2012
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

165 High St
Winchester, MA 01890-3336
Phone: (617) 448-1966
Show map & directions

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

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 234115 (MA)

Record details

NPI number1396009643
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 2, 2012
Last updated in NPPESApril 28, 2014
Mailing address55 Fruit St, Blake 1570, Boston, MA 02114-2621

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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