Bret J. Barrett, MD
Infectious Disease Physician · Jackson, MS
Bret J. Barrett, MD is an infectious disease physician with a practice address in Jackson, Mississippi, and NPI 1265640577, issued on May 18, 2007. Check the license (Mississippi 20210, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Bret J. Barrett
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 20210 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1200 N State St, Jackson, MS 39202
- Phone
- (601) 352-2273
- Enumerated
- May 18, 2007
- Record last updated
- Mar 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (601) 714-3415
- Medicaid ID
- 06903314 MS
- Medicare enrollment
- Enrolled (PECOS I20080806000375); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 2002
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 38 in Mississippi → Look up another NPI →
Also registered at 1200 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bret J. Barrett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 20210Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average infectious disease physician in 2024
260 Medicare Part D claims for 49 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Sodium Chloride58 claims
- Vancomycin Hcl36 claims
- Ceftriaxone32 claims
- Ertapenem25 claims
- Cefazolin Sodium19 claims
- Piperacillin-Tazobactam17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Medical Foundation OF Central Mississippi IncJackson, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bret J. Barrett among 38 infectious disease physician records in Mississippi
Bret J. Barrett, MD is one of 38 infectious disease physician records with a practice address in Mississippi. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 37% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2002 · median 1999 among the 26 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Mississippi
There are 38 infectious disease physician records in Mississippi.
All 38 in Mississippi → Every provider in Jackson → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Michael Byers, M.D.Jackson, MS 392021346311982
- Ayesha Khalid, MDJackson, MS 392021679702302
- Svenja Albrecht, M.D.Jackson, MS 392161962539577
- Mary Jane Burton, M.D.Jackson, MS 392161417045097
- Jo Deal, MDJackson, MS 392161003826272
- Ujjwal Dhar, M.D.Jackson, MS 392161841223377
- Richard Flowers, MDJackson, MS 392161356364905
- Anne McPherson, M.DJackson, MS 392161689622318
Common questions
What is Bret J. Barrett, MD's NPI number?
Bret J. Barrett, MD's National Provider Identifier (NPI) is 1265640577, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bret J. Barrett, MD located?
The NPPES record lists a practice address at 1200 N State St, Jackson, MS, 39202. Phone: (601) 352-2273. Providers update this record themselves, so call before visiting.
How can I verify Bret J. Barrett, MD's license?
NPPES lists Mississippi license number 20210, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bret J. Barrett, MD prescribe under Medicare Part D?
In 2024, Bret J. Barrett, MD had 260 Medicare Part D claims for 49 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Bret J. Barrett, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.