ELIZABETH ANN O'BRIEN (RN, CRNA) – Certified Registered Nurse Anesthetist, NPI 1144670647
Certified Registered Nurse Anesthetist
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Profile Insights
NPPES metrics only — not quality of care.
1,311 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in MA
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Provider Addresses for ELIZABETH ANN O'BRIEN (RN, CRNA)
Brigham & Women's Faulkner Hospital, 1153, Centre Street, Jamaica Plain, Boston, Suffolk County, Massachusetts, 02130, United States
BOSTON, MA 021303446
Phone: (617) 983-7000
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2016-10-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20161005000525 | I | Certified Registered Nurse Anesthetist (Crna) | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 01402 | Anesthesia for procedure for total knee joint replacement | 28 | 28 | $0 |
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 18 | 18 | $0 |
| 00400 | Anesthesia for other procedure on skin of arms, legs, and front body | 13 | 13 | $0 |
| 01214 | Anesthesia for total hip replacement | 11 | 11 | $0 |
Insurance plans in this area (ZIP 02130)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| - | MA | |
| A N E S T H E S I O L O G Y | CT | |
| A N E S T H E S I O L O G Y | MA | |
| A N E S T H E S I O L O G Y | MA | |
| A N E S T H E S I O L O G Y | MA | |
| A N E S T H E S I O L O G Y | NH | |
| A N E S T H E S I O L O G Y | DE | |
| - | MA |
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