Jens Masters Olsen, MD
Emergency Medicine Physician · Waterloo, IA
Jens Masters Olsen, MD is an emergency medicine physician with a practice address in Waterloo, Iowa, and NPI 1699169698, issued on Mar 27, 2015. Check the license (Iowa MD-45379, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Jens Masters Olsen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD-45379 IA
66570-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1825 Logan Ave, Waterloo, IA 50703
- Phone
- (612) 735-7022
- Enumerated
- Mar 27, 2015
- Record last updated
- Dec 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180712001508); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 509 in Iowa → Look up another NPI →
Also registered at 1825 Logan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paula Anderson, ARNPNurse Practitioner1992744569
- Rajeev Anugu, M.D.Diagnostic Radiology Physician1851576946
- Katie Baker, DOEmergency Medicine Physician1518387893
- Brandon Beauchamp, DOEmergency Medicine Physician1982637112
- Wayde Blumhardt, CRNACertified Registered Nurse Anesthetist1528011996
- Zubair Hassan Bodla, M.D.Hospitalist Physician1427710698
Verify Jens Masters Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-45379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average emergency medicine physician in 2024
304 Medicare Part D claims for 224 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 39 claims were for opioids.
Most prescribed
- Prednisone34 claims
- Hydrocodone-Acetaminophen30 claims
- Famotidine23 claims
- Cephalexin22 claims
- Amoxicillin-Clavulanate Potass20 claims
- Ondansetron Odt19 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.
Bills Medicare through one group practice
- Allen Memorial Hospital CorporationWaterloo, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jens Masters Olsen among 509 emergency medicine physician records in Iowa
Jens Masters Olsen, MD is one of 509 emergency medicine physician records with a practice address in Iowa. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 65% of them.
- NPI issued2015 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2015 · median 2012 among the 231 with a school on file
- Record last updated2018 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 emergency medicine physician records list a practice address in Waterloo
They are 19 of the 1,512 NPPES records with a practice address in Waterloo, and 509 emergency medicine physician records in Iowa.
All 509 in Iowa → Every provider in Waterloo → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Katie Baker, DOWaterloo, IA 507031518387893
- Brandon Beauchamp, DOWaterloo, IA 507031982637112
- Brian Cunningham, M.D.Waterloo, IA 507031619009537
- Robert Dekoster, M.D.Waterloo, IA 507031417926643
- William Fangman, MDWaterloo, IA 507031457611931
- Edward Herold, D.O.Waterloo, IA 507031326026279
- Kendall Kurt, M.D.Waterloo, IA 507031205826443
- Joseph Kwofie, DOWaterloo, IA 507031891953543
Common questions
What is Jens Masters Olsen, MD's NPI number?
Jens Masters Olsen, MD's National Provider Identifier (NPI) is 1699169698, issued on Mar 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jens Masters Olsen, MD located?
The NPPES record lists a practice address at 1825 Logan Ave, Waterloo, IA, 50703. Phone: (612) 735-7022. Providers update this record themselves, so call before visiting.
How can I verify Jens Masters Olsen, MD's license?
NPPES lists Iowa license number MD-45379, 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 Jens Masters Olsen, MD prescribe under Medicare Part D?
In 2024, Jens Masters Olsen, MD had 304 Medicare Part D claims for 224 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.