NPPES file of Aug 9, 2026

Kevin Daniel Brennan, DO

Family Medicine Physician · Oakville, MO

Kevin Daniel Brennan, DO is a family medicine physician with a practice address in Oakville, Missouri, and NPI 1679215016, issued on Apr 7, 2022. Check the license (Missouri 2025023535, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679215016
Name
Kevin Daniel Brennan
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
2025023535 MO
Self-reported in NPPES; status is on the state search
Practice location
5758 Telegraph RD, Oakville, MO 63129
Phone
(314) 543-5996
Enumerated
Apr 7, 2022
Record last updated
Jul 28, 2025
Fax
(314) 543-5958
Medicare enrollment
Enrolled (PECOS I20250807002291); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2022
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

Verify Kevin Daniel Brennan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2025023535
    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
Open the Missouri 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.

82% fewer Medicare Part D claims than the average family medicine physician in 2024

642 Medicare Part D claims for 50 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Kevin Brennan642
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Amlodipine Besylate37 claims
  3. Metoprolol Succinate25 claims
  4. Fluticasone Propionate24 claims
  5. Levothyroxine Sodium24 claims
  6. Ibuprofen21 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.

Bills Medicare through one group practice

  1. Mercy Clinic East CommunitiesOakville, MO

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

Kevin Daniel Brennan among 2,991 family medicine physician records in Missouri

Kevin Daniel Brennan, DO is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 91% of them.

  • NPI issued2022 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2022 · median 2006 among the 1,778 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Medicine Physician providers in Missouri

There are 2,991 family medicine physician records in Missouri.

The 8 family medicine physician records with the nearest ZIP codes

  1. Andrew Bryant, MDSaint Louis, MO 631291982044327
  2. Andrew Grabowski, DOSaint Louis, MO 631291093714917
  3. Alexander Mammen, M.D.Saint Louis, MO 631291609874734
  4. Alexander Mazzaferro, M.D.Saint Louis, MO 631291982017786
  5. Alejandro Ojascastro, M.D.Saint Louis, MO 631291154437994
  6. Jay Shah, MDSaint Louis, MO 631291366632440
  7. Stephen Staten, MDSaint Louis, MO 631291457351363
  8. Donna Wagstaff, MDSaint Louis, MO 631291326030586

Common questions

What is Kevin Daniel Brennan, DO's NPI number?

Kevin Daniel Brennan, DO's National Provider Identifier (NPI) is 1679215016, issued on Apr 7, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Kevin Daniel Brennan, DO located?

The NPPES record lists a practice address at 5758 Telegraph RD, Oakville, MO, 63129. Phone: (314) 543-5996. Providers update this record themselves, so call before visiting.

How can I verify Kevin Daniel Brennan, DO's license?

NPPES lists Missouri license number 2025023535, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kevin Daniel Brennan, DO prescribe under Medicare Part D?

In 2024, Kevin Daniel Brennan, DO had 642 Medicare Part D claims for 50 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions 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.