NPPES file of Aug 9, 2026

Corey L. Southworth, CRNA

Certified Registered Nurse Anesthetist · Boston, MA

Corey L. Southworth, CRNA is a certified registered nurse anesthetist with a practice address in Boston, Massachusetts, and NPI 1649595596, issued on Apr 5, 2010. Check the license (Massachusetts 279381, 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
1649595596
Name
Corey L. Southworth
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
279381 MA
Self-reported in NPPES; status is on the state search
Practice location
50 Staniford St # S50-1002, Boston, MA 02114
Phone
(617) 724-7168
Enumerated
Apr 5, 2010
Record last updated
Jan 27, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(617) 724-3947
Medicare enrollment
Enrolled (PECOS I20100928001347); 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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Verify Corey L. Southworth 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 279381
    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. Massachusetts General Physicians Organization IncDanvers, MA

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

Corey L. Southworth among 1,342 certified registered nurse anesthetist records in Massachusetts

Corey L. Southworth, 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 2010, is newer than 45% of them.

  • NPI issued2010 · 45% of these records are older, 52% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2010 · median 2013 among the 1,006 with a school on file
  • Record last updated2014 · 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.

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

  1. Robert Barboza, CRNABoston, MA 021141568463495
  2. Christian Brice, CRNABoston, MA 021141184784738
  3. Janice Carey, CRNABoston, MA 021141174581268
  4. Celeste Day, CRNABoston, MA 021141295800217
  5. William Fehder, CRNABoston, MA 021141962491365
  6. Tracy Jonassaint, CRNABoston, MA 021141609842574
  7. Linda Kovitch, CRNABoston, MA 021141689649428
  8. Susan Maher, CRNABoston, MA 021141013076066

Common questions

What is Corey L. Southworth, CRNA's NPI number?

Corey L. Southworth, CRNA's National Provider Identifier (NPI) is 1649595596, issued on Apr 5, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Corey L. Southworth, CRNA located?

The NPPES record lists a practice address at 50 Staniford St # S50-1002, Boston, MA, 02114. Phone: (617) 724-7168. Providers update this record themselves, so call before visiting.

How can I verify Corey L. Southworth, CRNA's license?

NPPES lists Massachusetts license number 279381, 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.

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.