Jan Ciejka, MD
NPI 1124015557 · Rheumatology Physician · Wausau, WI
Jan Ciejka, MD is a Rheumatology Physician provider in Wausau, WI (NPI 1124015557).
Provider details
- NPI number
- 1124015557
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301075501 (MI)
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
20 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
59 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $89 |
Typical Medicare-allowed amounts for these services range $89–$89 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 233 | 94 |
| Methotrexate Sodiumbrand: Methotrexate | 219 | 108 |
| Hydroxychloroquine Sulfate | 175 | 71 |
| Leflunomide | 66 | 25 |
| Meloxicam | 62 | 24 |
| Celecoxib | 53 | 22 |
| Nabumetone | 51 | 18 |
| Adalimumab |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2023-02-16
- Certified
- 2023-02-16
Frequently asked questions
- What is Jan Ciejka's NPI number?
- Jan Ciejka's National Provider Identifier (NPI) is 1124015557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Ciejka's specialty?
- Jan Ciejka is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Ciejka located?
- Jan Ciejka's practice location on file with NPPES is 2720 Plaza Dr Ste 1400a, Wausau, WI 54401-4166.
- What is Jan Ciejka's phone number?
- The practice phone number listed in the NPPES registry for Jan Ciejka is (715) 847-0426.
- Is Jan Ciejka's NPI active?
- Yes — Jan Ciejka's NPI (1124015557) is active in the NPPES registry as of the last update on 2023-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.