Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Elizabeth Ann O'Brien, RN, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1144670647

Elizabeth Ann O'Brien, RN, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Boston, Massachusetts. Qualified in 2016, 10 years ago. Practices with Brigham and Womens Physicians Organization Inc, a 2,916-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
10
Licensed in
MA
In the registry since
2016
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

1153 Centre St
Boston, MA 02130-3446
Phone: (617) 983-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 110354 (MA)

Record details

NPI number1144670647
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , CRNA
Sole proprietorNo
NPI enumeratedJune 15, 2016
Last updated in NPPESApril 8, 2024
Certification dateApril 8, 2024

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Brigham And Womens Physicians Organization Inc — 2916 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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