NPPES file of Aug 9, 2026

Elizabeth Ann O'Brien, RN, CRNA

Certified Registered Nurse Anesthetist · Boston, MA

Elizabeth Ann O'Brien, RN, CRNA is a certified registered nurse anesthetist with a practice address in Boston, Massachusetts, and NPI 1144670647, issued on Jun 15, 2016. Check the license (Massachusetts 110354, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144670647
Name
Elizabeth Ann O'Brien
Credential
RN, CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
110354 MA
Self-reported in NPPES; status is on the state search
Practice location
1153 Centre St, Boston, MA 02130
Phone
(617) 983-7000
Enumerated
Jun 15, 2016
Record last updated
Apr 8, 2024
Medicare enrollment
Enrolled (PECOS I20161005000525); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest certified registered nurse anesthetist records → All 1,342 in Massachusetts → Look up another NPI →

Also registered at 1153 Centre St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christopher AhnallenClinical Psychologist1558429563
  2. Rajendra Aldis, M.D.Psychiatry Physician1386968972
  3. Yogeld Andre, CRNACertified Registered Nurse Anesthetist1871971267
  4. Vonette Anglin, NPAdult Health Nurse Practitioner1912210220
  5. Arash Ansari, M.D.Psychiatry Physician1053482190
  6. Ani AroianRegistered Dietitian1619771136

Verify Elizabeth Ann O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 110354    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Brigham And Womens Physicians Organization IncJamaica Plain, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elizabeth Ann O'Brien among 1,342 certified registered nurse anesthetist records in Massachusetts

Elizabeth Ann O'Brien, RN, CRNA is one of 1,342 certified registered nurse anesthetist records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 64% of them.

  • NPI issued2016 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2016 · median 2013 among the 1,006 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in Massachusetts

There are 1,342 certified registered nurse anesthetist records in Massachusetts.

All 1,342 in Massachusetts → Every provider in Boston → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Yogeld Andre, CRNABoston, MA 021301871971267
  2. Katherine Canina, CRNABoston, MA 021301851681209
  3. Olivia DinardoBoston, MA 021301972952810
  4. Michele Hermes, CRNABoston, MA 021301083653281
  5. Krista Klopfenstein, CRNAJamaica Plain, MA 021301689642423
  6. Peter Leyva, CRNABoston, MA 021301023109980
  7. Michael McSweeney, CRNAJamaica Plain, MA 021301437543956
  8. Melanie Omojola, CRNAJamaica Plain, MA 021301275776486

Common questions

What is Elizabeth Ann O'Brien, RN, CRNA's NPI number?

Elizabeth Ann O'Brien, RN, CRNA's National Provider Identifier (NPI) is 1144670647, issued on Jun 15, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Ann O'Brien, RN, CRNA located?

The NPPES record lists a practice address at 1153 Centre St, Boston, MA, 02130. Phone: (617) 983-7000. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Ann O'Brien, RN, CRNA's license?

NPPES lists Massachusetts license number 110354, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.