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

Gretchen O'Brien, NP

Individual provider Nurse Practitioner · NPI 1013220961

Gretchen O'Brien, NP is a Nurse Practitioner in Needham, Massachusetts. Qualified in 2003, 23 years ago. Practices with Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc, a 1,676-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
23
Licensed in
MA
In the registry since
2010
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

148 Chestnut St
Needham, MA 02492-2505
Phone: (781) 453-7750
Fax: (781) 453-7770
Show map & directions

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

Additional practice locations (1)

  • 185 Pilgrim Rd, Boston, MA 02215-5324 — (617) 667-8800

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence RN232134 (MA)

Record details

NPI number1013220961
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 21, 2010
Last updated in NPPESFebruary 1, 2021
Certification dateFebruary 1, 2021
Mailing address185 Pilgrim Rd, Baker 4, Boston, MA 02215-5324

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc — 1676 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Needham