Rimas Janusonis, MD
NPI 1558389890 · Family Medicine Physician · Oshkosh, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rimas Janusonis, MD is a Family Medicine Physician provider in Oshkosh, WI (NPI 1558389890).
Provider details
- NPI number
- 1558389890
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 45914 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
1,278 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 273 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 183 | $118 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 145 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 93 | $122 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 85 | $13 |
| Hemoglobin A1c Level83036 | 81 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 319 | 67 |
| Pantoprazole Sodium | 259 | 64 |
| Atorvastatin Calcium | 244 | 72 |
| Omeprazole | 244 | 65 |
| Lisinopril | 243 | 66 |
| Amlodipine Besylate | 206 | 56 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2009-08-26
Frequently asked questions
- What is Rimas Janusonis's NPI number?
- Rimas Janusonis's National Provider Identifier (NPI) is 1558389890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rimas Janusonis's specialty?
- Rimas Janusonis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rimas Janusonis located?
- Rimas Janusonis's practice location on file with NPPES is 600 N Westhaven Dr, Oshkosh, WI 54904-6926.
- What is Rimas Janusonis's phone number?
- The practice phone number listed in the NPPES registry for Rimas Janusonis is (920) 237-5000.
- Does Rimas Janusonis accept Medicare?
- Rimas Janusonis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rimas Janusonis's NPI active?
- Yes — Rimas Janusonis's NPI (1558389890) is active in the NPPES registry as of the last update on 2009-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.