John Carroll, D.D.S.
Endodontics · Iowa City, IA
John Carroll, D.D.S. is an endodontics with a practice address in Iowa City, Iowa, and NPI 1437483609, issued on Sep 21, 2009. Check the license (Iowa 40120, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Carroll
- Credential
- D.D.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License numbers
- 40120 IA
24761 TX
Self-reported in NPPES; status is on the state search - Practice location
- 322 Dental Science Bldg S, Iowa City, IA 52242
- Phone
- (319) 335-7440
- Enumerated
- Sep 21, 2009
- Entity
- Type 1 · individual
Also registered at 322 Dental Science Bldg S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abbey Ambroson, D.D.SStudent in an Organized Health Care Education/Training Program1568727816
- Jed Arbon, DDSStudent in an Organized Health Care Education/Training Program1902208192
- Robert Bowers, DDSGeneral Practice Dentistry1659724656
- Michael Callan, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1124385448
- Joshua Cohen, D.D.S.Student in an Organized Health Care Education/Training Program1043358039
- Jhanvi Desai, BDS,MDSGeneral Practice Dentistry1073090213
Verify John Carroll in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 40120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
47% fewer Medicare Part D claims than the average endodontics in 2024
64 Medicare Part D claims for 43 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin29 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: $82.90
2 payments, mostly food and beverage; the largest payer was Septodont Inc. The 2,057 providers of this specialty with any payment received $49,739.86 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.
Endodontics providers in Iowa
There are 54 endodontics records in Iowa.
Other endodontics records in Iowa
- Ammon Anderson, D.D.S.Sioux City, IA1760618110
- Thomas Becker, D.D.S.West Des Moines, IA1487632139
- Randall Breeden, D.D.S.Sioux City, IA1194873315
- Andrew Chan, DDSDes Moines, IA1144488966
- Jane Chiappinelli, DDSDavenport, IA1558379511
- Rene Chu, DMDIowa City, IA1407130420
- Stuart Cobb, D.D.S.Iowa City, IA1578699658
- Lance Crawford, D.D.S, M.S.Ames, IA1518041573
- Gary Eggleston, D.D.S., M.S.Bettendorf, IA1912949595
- Lisa Elias, DDS, MSDCouncil Bluffs, IA1942542998
Common questions
What is John Carroll, D.D.S.'s NPI number?
John Carroll, D.D.S.'s National Provider Identifier (NPI) is 1437483609, issued on Sep 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John Carroll, D.D.S. located?
The NPPES record lists a practice address at 322 Dental Science Bldg S, Iowa City, IA, 52242. Phone: (319) 335-7440. Providers update this record themselves, so call before visiting.
How can I verify John Carroll, D.D.S.'s license?
NPPES lists Iowa license number 40120, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does John Carroll, D.D.S. prescribe under Medicare Part D?
In 2024, John Carroll, D.D.S. had 64 Medicare Part D claims for 43 beneficiaries; the average among endodontics prescribers was 121. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.