Ronald Benjamin Collins, M.D.
Internal Medicine Physician · Oskaloosa, IA
Ronald Benjamin Collins, M.D. is an internal medicine physician with a practice address in Oskaloosa, Iowa, and NPI 1851592018, issued on May 29, 2007. Check the license (Iowa 39422, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ronald Benjamin Collins
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 39422 IA
125050346 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1229 C Ave E, Oskaloosa, IA 52577
- Phone
- (641) 672-3394
- Enumerated
- May 29, 2007
- Record last updated
- Jan 28, 2026
- Medicaid IDs
- 036119753 IL
1669420501 IA - Medicare enrollment
- Enrolled (PECOS I20110414000656); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1229 C Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Agan, RPHPharmacotherapy Pharmacist1205049772
- Jessica Aguilera, DOFamily Medicine Physician1184316994
- Amanda Ballanger, RNRegistered Nurse1659025534
- Lisa Bard, LMHCCounselor1629176458
- Christine BeairdFamily Nurse Practitioner1063768646
- Mark Beers, DPMPodiatrist1164413209
Verify Ronald Benjamin Collins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 39422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
258 Medicare Part D claims for 100 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Cefdinir22 claims
- Furosemide22 claims
- Prednisone22 claims
- Pantoprazole Sodium13 claims
- Sucralfate12 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.
2 hospitals and group practices
- Grinnell Regional Medical CenterGrinnell, IA · Acute Care Hospitals2 of 5 stars
- Mahaska County HospitalOskaloosa, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ronald Benjamin Collins among 871 internal medicine physician records in Iowa
Ronald Benjamin Collins, M.D. 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 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 58% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2004 · median 2008 among the 386 with a school on file
- Record last updated2026 · 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).
3 internal medicine physician records list a practice address in Oskaloosa
They are 3 of the 253 NPPES records with a practice address in Oskaloosa, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Oskaloosa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Karen Spahr, DOOskaloosa, IA 525771194891374
- Kyle Witt, MDOskaloosa, IA 525771972092187
- Roberto Castro, MD.Sigourney, IA 525911083600050
- James Conroy, MDSigourney, IA 525911932153384
- Nilfar Karimova, M.D.Fairfield, IA 525571912155946
- Harbans Deol, DOFairfield, IA 525561912995135
- Syam Kilaru, M.D.Burlington, IA 526011447425772
- Robert Floyd, D.O.Bloomfield, IA 525371275514028
Common questions
What is Ronald Benjamin Collins, M.D.'s NPI number?
Ronald Benjamin Collins, M.D.'s National Provider Identifier (NPI) is 1851592018, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Benjamin Collins, M.D. located?
The NPPES record lists a practice address at 1229 C Ave E, Oskaloosa, IA, 52577. Phone: (641) 672-3394. Providers update this record themselves, so call before visiting.
How can I verify Ronald Benjamin Collins, M.D.'s license?
NPPES lists Iowa license number 39422, 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 Benjamin Collins, M.D. prescribe under Medicare Part D?
In 2024, Ronald Benjamin Collins, M.D. had 258 Medicare Part D claims for 100 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.