Brian Daniel Gerrelts, MD
Surgery Physician · Waterloo, IA
Brian Daniel Gerrelts, MD is a surgery physician with a practice address in Waterloo, Iowa, and NPI 1003869397, issued on May 18, 2006. Check the license (Iowa 29250, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Brian Daniel Gerrelts
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 29250 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1753 W Ridgeway Ave, Waterloo, IA 50701
- Phone
- (319) 833-5907
- Enumerated
- May 18, 2006
- Record last updated
- Feb 4, 2022
- Fax
- (319) 833-5908
- Medicaid ID
- 1098236 IA
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 437 in Iowa → Look up another NPI →
Also registered at 1753 W Ridgeway Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Cak, MDSurgery Physician1609829688
- Rebecca Chittenden, PAPhysician Assistant1841434313
- Jim Crouse, MDOrthopaedic Surgery Physician1821042516
- Tarek Daoud, MDNephrology Physician1780638171
- Robin Farley, OPA-C, SA-CSurgical Assistant1942606868
- Jayson GesmeSurgery Physician1821042698
Verify Brian Daniel Gerrelts in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 29250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average surgery physician in 2024
107 Medicare Part D claims for 76 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen39 claims
- Neomycin Sulfate13 claims
- Erythromycin12 claims
- Omeprazole11 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.
Industry payments in 2024: $17.10
1 payment: food and beverage; the largest payer was Smith+Nephew, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Brian Daniel Gerrelts among 437 surgery physician records in Iowa
Brian Daniel Gerrelts, MD is one of 437 surgery physician records with a practice address in Iowa. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 63% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 surgery physician records list a practice address in Waterloo
They are 16 of the 1,512 NPPES records with a practice address in Waterloo, and 437 surgery physician records in Iowa.
All 437 in Iowa → Every provider in Waterloo → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Robert Cak, MDWaterloo, IA 507011609829688
- Douglas Duven, MDWaterloo, IA 507011861445223
- Melissa Garrett, M.D.Waterloo, IA 507011881910271
- Jayson GesmeWaterloo, IA 507011821042698
- Christopher Healey, MDWaterloo, IA 507011922444637
- David Henry, M.D.Waterloo, IA 507011285861120
- Jason Kasenberg, DOWaterloo, IA 507011922349331
- Andrew Rikkers, DOWaterloo, IA 507011558455386
Common questions
What is Brian Daniel Gerrelts, MD's NPI number?
Brian Daniel Gerrelts, MD's National Provider Identifier (NPI) is 1003869397, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian Daniel Gerrelts, MD located?
The NPPES record lists a practice address at 1753 W Ridgeway Ave, Waterloo, IA, 50701. Phone: (319) 833-5907. Providers update this record themselves, so call before visiting.
How can I verify Brian Daniel Gerrelts, MD's license?
NPPES lists Iowa license number 29250, 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 Brian Daniel Gerrelts, MD prescribe under Medicare Part D?
In 2024, Brian Daniel Gerrelts, MD had 107 Medicare Part D claims for 76 beneficiaries; the average among surgery physician prescribers was 147. 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.