Sonja Marcic, MD
NPI 1700823192 · Nephrology Physician · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonja Marcic, MD is a Nephrology Physician provider in Oak Lawn, IL (NPI 1700823192).
Provider details
- NPI number
- 1700823192
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036106872 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,601 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 913 | $120 |
| 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 | 290 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 251 | $146 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 242 | $58 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 207 | $360 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 187 | 58 |
| Allopurinol | 183 | 64 |
| Furosemide | 166 | 58 |
| Amlodipine Besylate | 81 | 31 |
| Losartan Potassium | 62 | 26 |
| Hydralazine Hcl | 56 | 22 |
| Sevelamer Carbonate | 42 | 14 |
| Potassium Chloride | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$979 across 28 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2024-03-20
- Certified
- 2024-03-18
Frequently asked questions
- What is Sonja Marcic's NPI number?
- Sonja Marcic's National Provider Identifier (NPI) is 1700823192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Marcic's specialty?
- Sonja Marcic is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Sonja Marcic located?
- Sonja Marcic's practice location on file with NPPES is 4457 Southwest Highway, Oak Lawn, IL 60453.
- What is Sonja Marcic's phone number?
- The practice phone number listed in the NPPES registry for Sonja Marcic is (708) 598-2448.
- Does Sonja Marcic accept Medicare?
- Sonja Marcic is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonja Marcic's NPI active?
- Yes — Sonja Marcic's NPI (1700823192) is active in the NPPES registry as of the last update on 2024-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.