Ronald Reider, MD
Internal Medicine Physician · Cedar Rapids, IA
Ronald Reider, MD is an internal medicine physician with a practice address in Cedar Rapids, Iowa, and NPI 1386623163, issued on Jan 11, 2006. Check the license (Iowa 21089, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ronald Reider
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 21089 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1026 A Avenue, Cedar Rapids, IA 52402
- Phone
- (319) 369-7393
- Enumerated
- Jan 11, 2006
- Record last updated
- Oct 19, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (319) 369-8351
- Medicaid ID
- 2305995 IA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1026 A Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie Beard, DOHospice and Palliative Medicine (Emergency Medicine) Physician1003028093
Verify Ronald Reider in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 21089Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
118 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium20 claims
- Amlodipine Besylate15 claims
- Hydrochlorothiazide12 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 Reider among 871 internal medicine physician records in Iowa
Ronald Reider, MD is one of 871 internal medicine 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 11% of them.
- NPI issued2006 · 11% of these records are older, 62% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 44% of these records are
- Record last updated2009 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 internal medicine physician records list a practice address in Cedar Rapids
They are 33 of the 2,949 NPPES records with a practice address in Cedar Rapids, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Cedar Rapids → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mushtaq Ali, MDCedar Rapids, IA 524021457655979
- Todd Butler, MDCedar Rapids, IA 524021710964994
- Evan Diehl, M.D.Cedar Rapids, IA 524021255626925
- Dianna Edwards, M.D.Cedar Rapids, IA 524021770877466
- Amanda Gould, DOCedar Rapids, IA 524021982867628
- James Justice, MDCedar Rapids, IA 524021588642128
- Muhammad Arslan Arif Maan, MBBSCedar Rapids, IA 524021851953376
- Natalie Ross, MDCedar Rapids, IA 524021801536115
Common questions
What is Ronald Reider, MD's NPI number?
Ronald Reider, MD's National Provider Identifier (NPI) is 1386623163, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Reider, MD located?
The NPPES record lists a practice address at 1026 A Avenue, Cedar Rapids, IA, 52402. Phone: (319) 369-7393. Providers update this record themselves, so call before visiting.
How can I verify Ronald Reider, MD's license?
NPPES lists Iowa license number 21089, 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 Reider, MD prescribe under Medicare Part D?
In 2024, Ronald Reider, MD had 118 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.