Dr. Mark A. Kiefer, MD
Colorectal Surgery (Colon & Rectal Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Tennessee, Hsc, College of Medicine (2003)
- Years since graduation
- 23
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 243
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
- 2003Medical school: University of Tennessee, Hsc, College 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
-
Colon & Rectal Surgery Physician primary
OK license 27205 -
Surgery Physician
OK license 27205
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Ascension St John Medical Center Tulsa, OK
- Ascension St John Broken Arrow Broken Arrow, OK
- St John Owasso Owasso, OK
Medical groups
- St. John Physicians, Inc. (259 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
- 243
- Services billed
- 640
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 88 | 87 |
| Biopsy of large bowel using a flexible endoscope | 77 | 77 |
| Diagnostic exam of anus using an endoscope | 57 | 49 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 56 | 56 |
| Established patient office or other outpatient visit, 20-29 minutes | 41 | 32 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 17 |
| New patient office or other outpatient visit, 45-59 minutes | 37 | 37 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 30 | 13 |
| New patient office or other outpatient visit, 30-44 minutes | 27 | 27 |
| Partial removal of large bowel and reattachment to rectum using an endoscope | 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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Tulsa, OK | 44 |
| Neomycin Sulfate | 33 |
| Metronidazole Other prescribers in Tulsa, OK | 20 |
| Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Tulsa, OK | 15 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.