Catherine Malewicz, MD
NPI 1427519818 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Malewicz, MD is a Family Medicine Physician provider in Chicago, IL (NPI 1427519818).
Provider details
- NPI number
- 1427519818
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036159932 (IL)
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
7 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
284 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 | 101 | $133 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 73 | $9 |
| 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 | 56 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 29 | $134 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $187 |
Typical Medicare-allowed amounts for these services range $9–$187 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 62 | 18 |
| Lisinopril | 36 | — |
| Escitalopram Oxalate | 30 | — |
| Losartan Potassium | 29 | 15 |
| Metformin Hcl | 27 | — |
| Hydrochlorothiazide | 26 | 12 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-27
- Last updated
- 2024-02-04
- Certified
- 2024-02-04
Frequently asked questions
- What is Catherine Malewicz's NPI number?
- Catherine Malewicz's National Provider Identifier (NPI) is 1427519818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Malewicz's specialty?
- Catherine Malewicz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Malewicz located?
- Catherine Malewicz's practice location on file with NPPES is 4445 W Irving Park Rd Ste 320, Chicago, IL 60641-2808.
- What is Catherine Malewicz's phone number?
- The practice phone number listed in the NPPES registry for Catherine Malewicz is (312) 926-3627.
- Does Catherine Malewicz accept Medicare?
- Catherine Malewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Malewicz's NPI active?
- Yes — Catherine Malewicz's NPI (1427519818) is active in the NPPES registry as of the last update on 2024-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.