Dr. Mae A. Leef
Critical Care Medicine (Critical Care Medicine (Internal Medicine) Physician)
1775 Ballard Rd
Park Ridge, IL 60068
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
At a glance
- In the NPI registry since
- 2023
Licensed in Illinois since 2026, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2023Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Critical Care Medicine (Internal Medicine) Physician primary
IL license 036179366 (first issued 2026; active) -
Internal Medicine Physician
IL license 125.081622 -
Pulmonary Disease Physician
IL license 036179366 (first issued 2026; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Atorvastatin Calcium Other prescribers in Park Ridge, IL | 24 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.