Dr. John P. Affronti, M.D.
Gastroenterology (Gastroenterology Physician)
10803 Falls Road, Pavillion Iii
Lutherville, MD 21093
Who else practices at this address →
Baltimore County includes dental (23% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- George Washington University School of Medicine (1985)
- Years since graduation
- 41
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 207
Licensed in Illinois since 2007, 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
- 1985Medical school: George Washington University School of Medicine
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Gastroenterology Physician primary
MD license D0091561 · IL license 036119151 (first issued 2007; not renewed)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Johns Hopkins Hospital, the Baltimore, MD
- Johns Hopkins Bayview Medical Center Baltimore, MD
Medical groups
- Johns Hopkins University (2,909 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 207
- Services billed
- 286
- Patients’ average age
- 69
| Service | Times | Patients |
|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 59 | 59 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 47 | 40 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 35 | 34 |
| Biopsy of large bowel using a flexible endoscope | 32 | 32 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 32 | 32 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 28 | 28 |
| Diagnostic exam of large bowel using a flexible endoscope | 21 | 21 |
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.