Robert Winiecki, M.D.
NPI 1215985155 · Internal Medicine Physician · Lisle, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Winiecki, M.D. is a Internal Medicine Physician provider in Lisle, IL (NPI 1215985155).
Provider details
- NPI number
- 1215985155
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
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
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
727 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 | 308 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 202 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 191 | $121 |
| Administration of Influenza Virus VaccineG0008 | 15 | $33 |
| Initial Preventive Physical Examination; Face-To-Face Visit, Services Limited to New Beneficiary During the First 12 Months of Medicare EnrollmentG0402 | 11 | $154 |
Typical Medicare-allowed amounts for these services range $33–$154 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 280 | 78 |
| Atorvastatin Calcium | 259 | 70 |
| Levothyroxine Sodium | 229 | 66 |
| Amlodipine Besylate | 211 | 52 |
| Hydrochlorothiazide | 208 | 57 |
| Metformin Hcl | 181 | 50 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Winiecki's NPI number?
- Robert Winiecki's National Provider Identifier (NPI) is 1215985155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Winiecki's specialty?
- Robert Winiecki is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Winiecki located?
- Robert Winiecki's practice location on file with NPPES is 1500 Eisenhower Ln, Lisle, IL 60532-2125.
- What is Robert Winiecki's phone number?
- The practice phone number listed in the NPPES registry for Robert Winiecki is (630) 964-1844.
- Does Robert Winiecki accept Medicare?
- Robert Winiecki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Winiecki's NPI active?
- Yes — Robert Winiecki's NPI (1215985155) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.