Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Caroline Elizabeth O'Brien, FNP-C

Individual provider Family Nurse Practitioner · NPI 1124828801

Caroline Elizabeth O'Brien, FNP-C is a Nurse Practitioner in Medford, Massachusetts. Qualified in 2024, 2 years ago. Practices with Beth Israel Lahey Health Primary Care, Inc, a 353-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and New Hampshire.

Years since qualifying
2
Licensed in
MA, NH
In the registry since
2025
Specialties on file
3
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

22 Franklin St
Medford, MA 02155-3918
Phone: (781) 350-8571
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 23 Warren Ave Ste 100, Woburn, MA 01801-4979 — (781) 933-1198

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2333758 (MA)
Registered Nurse Taxonomy 163W00000X · Licence RN2333758 (MA)
Registered Nurse Taxonomy 163W00000X · Licence 093013-21S (NH)

Record details

NPI number1124828801
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorNo
NPI enumeratedMarch 13, 2025
Last updated in NPPESMarch 12, 2026
Certification dateMarch 12, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Beth Israel Lahey Health Primary Care, Inc — 353 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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