Dr. Mark M. Calder, MD/MPH
Orthopedic Surgery (Orthopaedic Trauma Physician)
- Medicare participating
At a glance
- Medical school
- Tulane University School of Medicine (2009)
- Years since graduation
- 17
- In the NPI registry since
- 2009
- Medicare patients seen, 2024
- 296
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
- 2009Medical school: Tulane University School of Medicine
- 2009Registered with an NPI (national billing number; not a license date)
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
-
Orthopaedic Trauma Physician primary
OK license 30496
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Saint Francis Hospital, Inc Tulsa, OK
- Saint Francis Hospital South, LLC Tulsa, OK
- Saint Francis Hospital Muskogee Muskogee, OK
- Saint Francis Hospital Vinita, Inc Vinita, OK
Medical groups
- Warren Clinic Inc (883 clinicians)
- Care Communications LLC (33 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
- 296
- Services billed
- 749
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 72 | 71 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 52 | 52 |
| Established patient office or other outpatient visit, 10-19 minutes | 41 | 37 |
| X-ray of hip, 2-3 views | 41 | 33 |
| X-ray of thigh bone, minimum 2 views | 27 | 18 |
| X-ray of ankle, minimum of 3 views | 27 | 11 |
| Treatment of broken neck of thigh bone with bone implant | 25 | 25 |
| Established patient office or other outpatient visit, 20-29 minutes | 24 | 21 |
| X-ray of shoulder, minimum of 2 views | 24 | 15 |
| Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement | 19 | 19 |
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 | 69 |
| Oxycodone-Acetaminophen (oxycodone hcl/acetaminophen) Other prescribers in Tulsa, OK | 29 |
| Meloxicam Other prescribers in Tulsa, OK | 20 |
| Gabapentin Other prescribers in Tulsa, OK | 14 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 10 companies reported 74 payments worth $4,198 in total to this clinician.
| Stryker Corporation | $1,995 |
|---|---|
| Medical Device Business Services, Inc. | $1,414 |
| DePuy Synthes Sales Inc. | $401 |
| US Implant Solutions, LLC | $211 |
| Smith+nephew, Inc. | $54.03 |
| Baxter Healthcare | $30.55 |
| Vertex Pharmaceuticals Incorporated | $28.71 |
| Si-bone, Inc. | $25.63 |
| Food and Beverage | $2,883 |
|---|---|
| Travel and Lodging | $1,314 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medical Device Business Services, Inc. Jan 18, 2025 | Travel and Lodging NA · Trauma · travel to AUSTIN, TX · in-kind | $656 |
| Medical Device Business Services, Inc. Jan 18, 2025 | Travel and Lodging NA · Trauma · travel to AUSTIN, TX · in-kind | $561 |
| Medical Device Business Services, Inc. Jan 18, 2025 | Travel and Lodging NA · Trauma · travel to AUSTIN, TX · in-kind | $97.12 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.