Dr. John M. Davis III, M.D.
Rheumatology (Rheumatology Physician)
- Medicare participating
At a glance
- Medical school
- University of Missouri, Columbia School of Medicine (2000)
- Years since graduation
- 26
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 153
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
- 2000Medical school: University of Missouri, Columbia 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
-
Rheumatology Physician primary
MN license 43631 -
General Practice Physician
MN license 43631
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mayo Clinic Hospital Rochester Rochester, MN
Medical groups
- Mayo Clinic (4,956 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
- 153
- Services billed
- 3,098
- Patients’ average age
- 69
| Service | Times | Patients |
|---|---|---|
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 192 | 15 |
| Injection, methylprednisolone acetate, 40 mg | 88 | 34 |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | 46 | 42 |
| Established patient office or other outpatient visit, 40-54 minutes | 43 | 38 |
| Established patient office or other outpatient visit, 30-39 minutes | 32 | 26 |
| New patient office or other outpatient visit, 45-59 minutes | 27 | 27 |
| New patient office or other outpatient visit, 60-74 minutes | 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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Prednisone Other prescribers in Rochester, MN | 57 |
| Methotrexate (methotrexate sodium) Other prescribers in Rochester, MN | 37 |
| Hydroxychloroquine Sulfate Other prescribers in Rochester, MN | 35 |
| Kevzara (sarilumab) | 19 |
| Rinvoq (upadacitinib) | 19 |
| Humira(Cf) Pen (adalimumab) Other prescribers in Rochester, MN | 18 |
| Colchicine Other prescribers in Rochester, MN | 17 |
| Ilaris (canakinumab/pf) | 13 |
| Enbrel Mini (etanercept) Other prescribers in Rochester, MN | 11 |
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, 3 companies reported 3 payments worth $760 in total to this clinician.
| Endologix LLC | $708 |
|---|---|
| Pfizer Inc. | $27.10 |
| Incyte Corporation | $24.73 |
| Travel and Lodging | $708 |
|---|---|
| Food and Beverage | $51.83 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Endologix LLC Mar 5, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $708 |
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.