Brad Michael Willenbring, D.O.
Family Medicine Physician · Grimes, IA
Brad Michael Willenbring, D.O. is a family medicine physician with a practice address in Grimes, Iowa, and NPI 1124464185, issued on May 17, 2013. Check the license (Iowa 05623, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Brad Michael Willenbring
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 05623 IA
Self-reported in NPPES; status is on the state search - Practice location
- 825 NE Gateway Dr Ste 148, Grimes, IA 50111
- Phone
- (515) 875-9607
- Enumerated
- May 17, 2013
- Record last updated
- Oct 18, 2024
- Fax
- (515) 875-9608
- Medicare enrollment
- Enrolled (PECOS I20200807002411); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 2013
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 825 NE Gateway Dr Ste 148
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shauna Baker, M.D.Pediatrics Physician1134119241
- Mirnes Kadic, DOFamily Medicine Physician1700345766
- Tiffany Ketcham, DOFamily Medicine Physician1699786962
- Paul Otteson, P.A.-CPhysician Assistant1982030987
Verify Brad Michael Willenbring in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 05623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average family medicine physician in 2024
2,985 Medicare Part D claims for 270 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 110 claims were for opioids.
Most prescribed
- Atorvastatin Calcium224 claims
- Lisinopril135 claims
- Omeprazole105 claims
- Losartan Potassium100 claims
- Simvastatin96 claims
- Metformin Hcl94 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
- The Iowa Clinic PCGrimes, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brad Michael Willenbring among 2,336 family medicine physician records in Iowa
Brad Michael Willenbring, D.O. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 69% of them.
- NPI issued2013 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2006 among the 1,367 with a school on file
- Record last updated2024 · 61% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Grimes
They are 9 of the 111 NPPES records with a practice address in Grimes, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Grimes → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Dennis Bussey, DOGrimes, IA 501111063471399
- Jennifer Gerrietts, D.O.Grimes, IA 501111437312485
- Mirnes Kadic, DOGrimes, IA 501111700345766
- Tiffany Ketcham, DOGrimes, IA 501111699786962
- Kurt Klise, MDGrimes, IA 501111871589754
- Michael Simons, DOGrimes, IA 501111518495589
- Hyo Young Smith, MDGrimes, IA 501111316478894
- Erin Swenka, DOGrimes, IA 501111932411212
Common questions
What is Brad Michael Willenbring, D.O.'s NPI number?
Brad Michael Willenbring, D.O.'s National Provider Identifier (NPI) is 1124464185, issued on May 17, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Brad Michael Willenbring, D.O. located?
The NPPES record lists a practice address at 825 NE Gateway Dr Ste 148, Grimes, IA, 50111. Phone: (515) 875-9607. Providers update this record themselves, so call before visiting.
How can I verify Brad Michael Willenbring, D.O.'s license?
NPPES lists Iowa license number 05623, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brad Michael Willenbring, D.O. prescribe under Medicare Part D?
In 2024, Brad Michael Willenbring, D.O. had 2,985 Medicare Part D claims for 270 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.