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

Individual provider Acute Care Nurse Practitioner · NPI 1881390029

Jennifer Martell Collar, CNP is a Nurse Practitioner in Melrose, Massachusetts. Qualified in 2022, 4 years ago. Practices with Hallmark Health Medical Associates Inc, a 149-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
4
Licensed in
MA
In the registry since
2023
Specialties on file
2
What do these letters mean?
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

585 Lebanon St
Melrose, MA 02176-3225
Phone: (781) 979-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5500
  • 15 Francis St, Boston, MA 02115-6105 — (617) 732-8881
  • 850 Harrison Ave, Boston, MA 02118-4001 — (617) 414-4359
  • 1153 Centre St, Jamaica Plain, MA 02130-3446 — (617) 983-7000

Specialties & licences

Neonatal Nurse Practitioner (primary) Taxonomy 363LN0000X · Licence RN284243 (MA)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence RN284243 (MA)

Record details

NPI number1881390029
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNP
Sole proprietorNo
NPI enumeratedJanuary 31, 2023
Last updated in NPPESMarch 11, 2026
Certification dateMarch 11, 2026

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 Hallmark Health Medical Associates Inc — 149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients11
Services billed 17 a service is one billed item, such as a visit, a test or a procedure
Average patient age82

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Melrosewakefield Healthcare Hospital · Melrose, MA

Colleagues at Hallmark Health Medical Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 149 clinicians in the practice; 12 are shown here.

Other providers in Melrose