Dr. Christopher D. Ryan, M.D.
Anesthesiology (Anesthesiology Physician)
- Medicare participating
At a glance
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 1,035
Licensed in Illinois since 1996, 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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Anesthesiology Physician primary
IL license 036-092550 (first issued 1996; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 1,035
- Services billed
- 1,137
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Anesthesia for other procedure on large bowel using an endoscope | 326 | 324 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 170 | 166 |
| Anesthesia for lens surgery | 146 | 130 |
| Anesthesia for procedure on small and large bowel using an endoscope | 134 | 134 |
| Anesthesia for exam of colon using an endoscope | 89 | 89 |
| Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand | 71 | 68 |
| Anesthesia for procedure on eyelid | 47 | 47 |
| Ultrasonic guidance for needle placement | 43 | 42 |
| Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back | 34 | 34 |
| Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) | 23 | 23 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.