Roger Tseng, MD
Internal Medicine Physician · Cedar Rapids, IA
Roger Tseng, MD is an internal medicine physician with a practice address in Cedar Rapids, Iowa, and NPI 1114548484, issued on Apr 28, 2020. Check the license (Iowa MD-51300, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Roger Tseng
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD-51300 IA
R78073 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1026 A Ave NE, Cedar Rapids, IA 52402
- Phone
- (319) 368-5970
- Enumerated
- Apr 28, 2020
- Record last updated
- Jun 14, 2023
- Fax
- (319) 368-5973
- Medicare enrollment
- Enrolled (PECOS I20230828003436); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2020
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1026 A Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roger Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-51300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
392 Medicare Part D claims for 164 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Jardiance28 claims
- Clopidogrel24 claims
- Amoxicillin-Clavulanate Potass19 claims
- Furosemide17 claims
- Prednisone17 claims
- Atorvastatin Calcium13 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
- Iowa Physicians Clinic Medical FoundationCedar Rapids, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger Tseng among 871 internal medicine physician records in Iowa
Roger Tseng, 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 2020, is newer than 66% of them.
- NPI issued2020 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2020 · median 2008 among the 386 with a school on file
- Record last updated2023 · 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
- Ronald Reider, MDCedar Rapids, IA 524021386623163
Common questions
What is Roger Tseng, MD's NPI number?
Roger Tseng, MD's National Provider Identifier (NPI) is 1114548484, issued on Apr 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Roger Tseng, MD located?
The NPPES record lists a practice address at 1026 A Ave NE, Cedar Rapids, IA, 52402. Phone: (319) 368-5970. Providers update this record themselves, so call before visiting.
How can I verify Roger Tseng, MD's license?
NPPES lists Iowa license number MD-51300, 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 Roger Tseng, MD prescribe under Medicare Part D?
In 2024, Roger Tseng, MD had 392 Medicare Part D claims for 164 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.