NPPES file of Aug 9, 2026

Brenna M. Thomas, CRNA

Certified Registered Nurse Anesthetist · O Fallon, IL

Brenna M. Thomas, CRNA is a certified registered nurse anesthetist with a practice address in O Fallon, Illinois, and NPI 1619407210, issued on Jun 15, 2017. Check the license (Illinois 041400301, as entered in NPPES) with the Illinois 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
1619407210
Name
Brenna M. Thomas
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
041400301 IL
2018024574 MO
2009022776 MO
Self-reported in NPPES; status is on the state search
Practice location
1310 Engle CT, O Fallon, IL 62269
Phone
(618) 581-2854
Enumerated
Jun 15, 2017
Record last updated
Jul 21, 2022
Medicare enrollment
Enrolled (PECOS I20210212000952); 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 2,444 in Illinois → Look up another NPI →

Verify Brenna M. Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 041400301    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 Illinois license search

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Bills Medicare through one group practice

  1. G And G Anesthesia LLCMount Vernon, IL

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

Brenna M. Thomas among 2,444 certified registered nurse anesthetist records in Illinois

Brenna M. Thomas, CRNA is one of 2,444 certified registered nurse anesthetist records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 62% of them.

  • NPI issued2017 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2018 · median 2015 among the 1,926 with a school on file
  • Record last updated2022 · 48% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 certified registered nurse anesthetist records list a practice address in O Fallon

They are 19 of the 1,077 NPPES records with a practice address in O Fallon, and 2,444 certified registered nurse anesthetist records in Illinois.

All 2,444 in Illinois → Every provider in O Fallon → Certified Registered Nurse Anesthetist nationwide →

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

  1. Justin Baecht, CRNAO Fallon, IL 622691801034491
  2. Leah Baecht, DNP, CRNA, APRNO Fallon, IL 622691275831273
  3. Tonya Carrizales, CRNAO Fallon, IL 622691720225204
  4. Kristopher Clements, CRNAO Fallon, IL 622691184022352
  5. Jennifer Cripps, CRNAO Fallon, IL 622691104177724
  6. Courtney Harris, CRNAO Fallon, IL 622691235764218
  7. Jamie Hart, CRNAO Fallon, IL 622691477090322
  8. Angela Harvey, CRNAO Fallon, IL 622691588707020

Common questions

What is Brenna M. Thomas, CRNA's NPI number?

Brenna M. Thomas, CRNA's National Provider Identifier (NPI) is 1619407210, issued on Jun 15, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Brenna M. Thomas, CRNA located?

The NPPES record lists a practice address at 1310 Engle CT, O Fallon, IL, 62269. Phone: (618) 581-2854. Providers update this record themselves, so call before visiting.

How can I verify Brenna M. Thomas, CRNA's license?

NPPES lists Illinois license number 041400301, as entered by the provider. Search the Illinois 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.