Ronald Scott Sims, M.D.
Neurology Physician · Dubuque, IA
Ronald Scott Sims, M.D. is a neurology physician with a practice address in Dubuque, Iowa, and NPI 1639138837, issued on Mar 17, 2006. Check the license (Iowa 27457, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ronald Scott Sims
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 27457 IA
Self-reported in NPPES; status is on the state search - Practice location
- 2140 John F Kennedy RD, Dubuque, IA 52002
- Phone
- (563) 583-1558
- Enumerated
- Mar 17, 2006
- Record last updated
- Dec 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (563) 583-0443
- Medicaid ID
- 7296137 IA
- Medicare enrollment
- Enrolled (PECOS I20060620000157); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 167 in Iowa → Look up another NPI →
Also registered at 2140 John F Kennedy RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- George Isaac, M.D.Specialist1588652416
- Juan Nieto, M.D.Ophthalmology Physician1780770156
Verify Ronald Scott Sims in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 27457Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average neurology physician in 2024
511 Medicare Part D claims for 84 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Levetiracetam70 claims
- Gabapentin54 claims
- Carbidopa-Levodopa31 claims
- Carbamazepine29 claims
- Topiramate27 claims
- Donepezil Hcl22 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.
Ronald Scott Sims among 167 neurology physician records in Iowa
Ronald Scott Sims, M.D. is one of 167 neurology physician records with a practice address in Iowa. 70% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 56% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1982 · median 2001 among the 86 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Iowa
There are 167 neurology physician records in Iowa.
All 167 in Iowa → Every provider in Dubuque → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Mark Fortson, M.D.Dubuque, IA 520021467413914
- Paula Aston, MDDubuque, IA 520011144286675
- Marsha Horwitz, M.D.Dubuque, IA 520011992757553
- Preeti Joseph, MDDubuque, IA 520011730229121
- Patrick Sterrett, M.D., PH.D.Dubuque, IA 520031922078500
- Dana Ghazaleh, MDCoralville, IA 522411053047258
- Harold Adams, MDIowa City, IA 522421396737912
- Edward Aul, MDIowa City, IA 522421538151105
Common questions
What is Ronald Scott Sims, M.D.'s NPI number?
Ronald Scott Sims, M.D.'s National Provider Identifier (NPI) is 1639138837, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Scott Sims, M.D. located?
The NPPES record lists a practice address at 2140 John F Kennedy RD, Dubuque, IA, 52002. Phone: (563) 583-1558. Providers update this record themselves, so call before visiting.
How can I verify Ronald Scott Sims, M.D.'s license?
NPPES lists Iowa license number 27457, 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 Ronald Scott Sims, M.D. prescribe under Medicare Part D?
In 2024, Ronald Scott Sims, M.D. had 511 Medicare Part D claims for 84 beneficiaries; the average among neurology physician prescribers was 1,370. 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.