NPPES file of Aug 9, 2026

Rachael Brennan

Certified Registered Nurse Anesthetist · Boston, MA

Rachael Brennan is a certified registered nurse anesthetist with a practice address in Boston, Massachusetts, and NPI 1407444052, issued on Jan 8, 2021. Check the license (Massachusetts RN2348864, 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
1407444052
Name
Rachael Brennan
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
RN2348864 MA
041410582 IL
131932 IL
Self-reported in NPPES; status is on the state search
Practice location
75 Francis St, Boston, MA 02115
Phone
(617) 732-5500
Enumerated
Jan 8, 2021
Record last updated
Nov 9, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211116000254); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2020
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.
Download card Updates feed

Also registered at 75 Francis St

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

  1. Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
  2. Emily Aaronson, M.D.Emergency Medicine Physician1962791558
  3. Sarah Abbett, M.D.Anesthesiology Physician1902097736
  4. Christine Abbott, NPAdult Health Nurse Practitioner1851471940
  5. Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
  6. Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867

Verify Rachael Brennan 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 RN2348864    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Brigham And Womens Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 →

Other certified registered nurse anesthetist records in Massachusetts

  1. Amarys Abadie, CRNAWorcester, MA1992936843
  2. Juliet Aborn, REGISTERED NURSEBurlington, MA1932727930
  3. Marisa Abreu, CRNAWestwood, MA1154727493
  4. Michael Abreu, CRNAWeymouth, MA1407330848
  5. Sonja Adams-QuowNew Bedford, MA1487768925
  6. Carol Agostini, CRNAAttleboro, MA1841247301
  7. Judy Akpan, CRNABurlington, MA1144645128
  8. Ramy Al-Taweel, CRNAMethuen, MA1922626001
  9. Meigs Alden, C.R.N.A.Marshfield, MA1063451383
  10. Jorge Alzate, CRNAFramingham, MA1003200858

Common questions

What is Rachael Brennan's NPI number?

Rachael Brennan's National Provider Identifier (NPI) is 1407444052, issued on Jan 8, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Rachael Brennan located?

The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-5500. Providers update this record themselves, so call before visiting.

How can I verify Rachael Brennan's license?

NPPES lists Massachusetts license number RN2348864, 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.