Brett Stockton Kathmann, M.D.
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Gulfport, MS
Brett Stockton Kathmann, M.D. is an undersea and hyperbaric medicine (emergency medicine) physician with a practice address in Gulfport, Mississippi, and NPI 1851666150, issued on Mar 20, 2012. Check the license (Mississippi 24612, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Brett Stockton Kathmann
- Credential
- M.D.
- Primary taxonomy
- Undersea and Hyperbaric Medicine (Emergency Medicine) Physician 207PE0005X
- License numbers
- 24612 MS
MD.207434 LA
Self-reported in NPPES; status is on the state search - Practice location
- 4500 13TH St, Gulfport, MS 39501
- Phone
- (228) 493-4325
- Enumerated
- Mar 20, 2012
- Record last updated
- May 19, 2026
- Fax
- (228) 200-5691
- Medicare enrollment
- Enrolled (PECOS I20170207001597); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
4 nearest undersea and hyperbaric medicine (emergency medicine) physician records → All 5 in Mississippi → Look up another NPI →
Also registered at 4500 13TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Adams, MDDiagnostic Radiology Physician1396165387
- Ali Ahmad, MDFamily Medicine Physician1063207280
- Adam Alamo, DOStudent in an Organized Health Care Education/Training Program1346034709
- Ali Alherimi, MDFamily Medicine Physician1649010794
- Summer Allen, MDHospitalist Physician1730491036
- Rachel Allen Rydbeck, NPNurse Practitioner1568921245
Verify Brett Stockton Kathmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 24612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average undersea and hyperbaric medicine (emergency medicine) physician in 2024
300 Medicare Part D claims for 179 beneficiaries, against an average of 374 among the 112 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Doxycycline Hyclate31 claims
- Ondansetron Odt26 claims
- Meloxicam21 claims
- Sulfamethoxazole-Trimethoprim21 claims
- Cephalexin19 claims
- Ciprofloxacin Hcl18 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $779.16
30 payments; by number, the most common kind was food and beverage; the largest payer was Organogenesis Inc. The 66 providers of this specialty with any payment received $444.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Memorial Hospital AT GulfportGulfport, MS · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers in Mississippi
There are 5 undersea and hyperbaric medicine (emergency medicine) physician records in Mississippi.
All 5 in Mississippi → Every provider in Gulfport → Undersea and Hyperbaric Medicine (Emergency Medicine) Physician nationwide →
The 4 undersea and hyperbaric medicine (emergency medicine) physician records with the nearest ZIP codes
- William Peters, M.D.Hattiesburg, MS 394041679638621
- James Mitchell, DOCorinth, MS 388341780621532
- Leanna Hollis, M.D.Tupelo, MS 388011790934230
- Buford Lambert, MDTupelo, MS 388011144267113
Common questions
What is Brett Stockton Kathmann, M.D.'s NPI number?
Brett Stockton Kathmann, M.D.'s National Provider Identifier (NPI) is 1851666150, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Brett Stockton Kathmann, M.D. located?
The NPPES record lists a practice address at 4500 13TH St, Gulfport, MS, 39501. Phone: (228) 493-4325. Providers update this record themselves, so call before visiting.
How can I verify Brett Stockton Kathmann, M.D.'s license?
NPPES lists Mississippi license number 24612, 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 Brett Stockton Kathmann, M.D. prescribe under Medicare Part D?
In 2024, Brett Stockton Kathmann, M.D. had 300 Medicare Part D claims for 179 beneficiaries; the average among undersea and hyperbaric medicine (emergency medicine) physician prescribers was 374. Part D covers Medicare prescriptions only.
What is Brett Stockton Kathmann, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.