Maria Olga Cardenas, MD
NPI 1154408375ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Chicago, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Chicago, Illinois, trained at Rush Medical College of Rush University (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $317,426 for 760 claims, against $9,758 paid for services in 2024. Tandem Diabetes Care, Inc. was the largest of 10 companies reporting payments in 2025, $706.67 in all, mostly food and beverage.
Overview
| NPI | 1154408375 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Feb 10, 2022 |
| Certified by provider | Dec 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036118661 | IL |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 54217 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 60 |
|---|---|
| Services billed | 139 across 8 procedure codes |
| Paid by Medicare | $9,758 |
Part D prescriptions in 2024
| Prescriptions (claims) | 760 · 1,429 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $317,426 |
| Generic share | 40% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
- 2025$706.67 · 16 payments from 10 companies
- 2024$1,350 · 39 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tandem Diabetes Care, Inc. | $268.76 | 3 |
| Novo Nordisk Inc | $168.79 | 4 |
| Insulet Corporation | $116.28 | 1 |
| Abbott Laboratories | $33.83 | 2 |
| Corcept Therapeutics | $31.11 | 1 |
What the 2025 payments were for
- Food and Beverage$706.67 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 170 endocrinologists in Chicago · All endocrinologists in Illinois