Roger Tseng, MD
NPI 1114548484 · Internal Medicine Physician · Cedar Rapids, IA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roger Tseng, MD is a Internal Medicine Physician provider in Cedar Rapids, IA (NPI 1114548484).
Provider details
- NPI number
- 1114548484
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R78073 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
749 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 284 | $72 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 75 | $159 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 75 | $105 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 71 | $74 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 69 | $45 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 28 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 24 | 11 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 19 | 19 |
| Prednisone | 17 | 17 |
| Furosemide | 17 | 12 |
| Atorvastatin Calcium | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-28
- Last updated
- 2023-06-14
- Certified
- 2023-06-14
Frequently asked questions
- What is Roger Tseng's NPI number?
- Roger Tseng's National Provider Identifier (NPI) is 1114548484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Tseng's specialty?
- Roger Tseng is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Roger Tseng located?
- Roger Tseng's practice location on file with NPPES is 1026 a Ave Ne, Cedar Rapids, IA 52402-5036.
- What is Roger Tseng's phone number?
- The practice phone number listed in the NPPES registry for Roger Tseng is (319) 368-5970.
- Does Roger Tseng accept Medicare?
- Roger Tseng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roger Tseng's NPI active?
- Yes — Roger Tseng's NPI (1114548484) is active in the NPPES registry as of the last update on 2023-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.