Janis Wiener, MD
NPI 1750315586 · Internal Medicine Physician · Oak Park, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janis Wiener, MD is a Internal Medicine Physician provider in Oak Park, IL (NPI 1750315586).
Provider details
- NPI number
- 1750315586
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036081282 (IL)
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
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
1,240 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 | 400 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 243 | $68 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 192 | $133 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 143 | $17 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 108 | $79 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 148 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 870 | 263 |
| Amlodipine Besylate | 565 | 162 |
| Lisinopril | 361 | 95 |
| Losartan Potassium | 357 | 114 |
| Levothyroxine Sodium | 349 | 98 |
| Metformin Hcl | 345 | 104 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2021-05-05
- Certified
- 2021-05-05
Frequently asked questions
- What is Janis Wiener's NPI number?
- Janis Wiener's National Provider Identifier (NPI) is 1750315586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janis Wiener's specialty?
- Janis Wiener is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Janis Wiener located?
- Janis Wiener's practice location on file with NPPES is 965 Lake St, Oak Park, IL 60301-1292.
- What is Janis Wiener's phone number?
- The practice phone number listed in the NPPES registry for Janis Wiener is (708) 386-3000.
- Does Janis Wiener accept Medicare?
- Janis Wiener is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janis Wiener's NPI active?
- Yes — Janis Wiener's NPI (1750315586) is active in the NPPES registry as of the last update on 2021-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.