Dr. Peter N. Chalmers, MD
Orthopedic Surgery (Orthopaedic Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Missouri, Columbia School of Medicine (2010)
- Years since graduation
- 16
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 222
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
- 2010Medical school: University of Missouri, Columbia School of Medicine
- 2010Registered 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 Surgery Physician primary
MO license 2015005950
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of Utah Hospital and Clinics Salt Lake City, UT
Medical groups
- University of Utah Adult Services (1,788 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
- 222
- Services billed
- 494
- Patients’ average age
- 71
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 127 | 106 |
| Established patient office or other outpatient visit, 20-29 minutes | 99 | 81 |
| New patient office or other outpatient visit, 45-59 minutes | 59 | 59 |
| Prosthetic repair of shoulder joint, total shoulder | 27 | 27 |
| Aspiration and/or injection of fluid from large joint | 17 | 14 |
| Established patient office or other outpatient visit, 10-19 minutes | 12 | 11 |
| Shaving of part of shoulder bone and repair of ligament using an endoscope | 12 | 12 |
| Repair of shoulder rotator cuff using an endoscope | 12 | 12 |
| Removal of extensive shoulder joint tissue using an endoscope | 11 | 11 |
| Anchoring of biceps tendon | 11 | 11 |
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 |
|---|---|
| Celecoxib Other prescribers in Saint Louis, MO | 44 |
| Tramadol Hcl Other prescribers in Saint Louis, MO | 28 |
| Naproxen Other prescribers in Saint Louis, MO | 20 |
| Oxycodone Hcl Other prescribers in Saint Louis, MO | 20 |
| Ceftriaxone (ceftriaxone sodium) Other prescribers in Saint Louis, MO | 12 |
| Methocarbamol Other prescribers in Saint Louis, MO | 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, 6 companies reported 98 payments worth $183,593 in total to this clinician.
| Exactech, Inc. | $99,437 |
|---|---|
| Medical Device Business Services, Inc. | $65,810 |
| DePuy Synthes Products, Inc. | $15,272 |
| Responsive Arthroscopy Inc | $2,335 |
| Advita Ortho, LLC | $650 |
| DePuy Synthes Sales Inc. | $89.45 |
| Consulting Fee | $161,017 |
|---|---|
| Travel and Lodging | $17,011 |
| Food and Beverage | $3,229 |
| Royalty or License | $2,335 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Exactech, Inc. Apr 25, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $13,375 |
| Exactech, Inc. Apr 25, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $13,375 |
| Medical Device Business Services, Inc. Oct 7, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $12,150 |
| Medical Device Business Services, Inc. May 12, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,970 |
| DePuy Synthes Products, Inc. Jul 31, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,796 |
| Medical Device Business Services, Inc. Nov 6, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,463 |
| Exactech, Inc. Jan 31, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $10,125 |
| Medical Device Business Services, Inc. May 19, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,124 |
| Exactech, Inc. Aug 7, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $9,825 |
| Medical Device Business Services, Inc. Nov 17, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $8,775 |
All 67 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Medical Device Business Services, Inc. Dec 30, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $675 |
| Medical Device Business Services, Inc. Dec 19, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $2,025 |
| DePuy Synthes Products, Inc. Nov 21, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $1,350 |
| Advita Ortho, LLC Nov 19, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $650 |
| Medical Device Business Services, Inc. Nov 17, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $8,775 |
| Medical Device Business Services, Inc. Nov 17, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to SAINT LOUIS, MO | $114 |
| Responsive Arthroscopy Inc Nov 13, 2025 | Royalty or License Responsive Arthroscopy Devices · Orthopedic Devices | $2,335 |
| Medical Device Business Services, Inc. Nov 9, 2025 | Travel and Lodging HEALIX KNOTLESS PEEK · Sports Surgical · travel to Atlanta, GA · in-kind | $157 |
| Medical Device Business Services, Inc. Nov 6, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,463 |
| Medical Device Business Services, Inc. Nov 6, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to SAINT LOUIS, MO | $50.00 |
| Medical Device Business Services, Inc. Oct 31, 2025 | Travel and Lodging HEALIX KNOTLESS PEEK · Sports Surgical · travel to Atlanta, GA · in-kind | $921 |
| Medical Device Business Services, Inc. Oct 27, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $2,025 |
| Medical Device Business Services, Inc. Oct 27, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $675 |
| Medical Device Business Services, Inc. Oct 24, 2025 | Travel and Lodging travel to PALM BEACH GARDENS, FL · in-kind | $779 |
| Medical Device Business Services, Inc. Oct 24, 2025 | Travel and Lodging travel to PALM BEACH GARDENS, FL · in-kind | $148 |
| Exactech, Inc. Oct 16, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $2,275 |
| Exactech, Inc. Oct 16, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $1,950 |
| Medical Device Business Services, Inc. Oct 7, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $12,150 |
| Medical Device Business Services, Inc. Oct 7, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to SAINT LOUIS, MO | $50.00 |
| Medical Device Business Services, Inc. Sep 25, 2025 | Travel and Lodging INHANCE · Ortho-Shoulder · travel to PARK RIDGE, IL · in-kind | $521 |
| Medical Device Business Services, Inc. Sep 25, 2025 | Travel and Lodging INHANCE · Ortho-Shoulder · travel to PARK RIDGE, IL · in-kind | $313 |
| Medical Device Business Services, Inc. Sep 25, 2025 | Travel and Lodging INHANCE · Ortho-Shoulder · travel to PARK RIDGE, IL · in-kind | $227 |
| Exactech, Inc. Sep 11, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $1,300 |
| Medical Device Business Services, Inc. Sep 2, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $2,025 |
| Exactech, Inc. Aug 12, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $650 |
| Exactech, Inc. Aug 8, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to NASHVILLE, TN · in-kind | $1,230 |
| Exactech, Inc. Aug 8, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to NASHVILLE, TN · in-kind | $890 |
| Exactech, Inc. Aug 7, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $9,825 |
| Exactech, Inc. Aug 7, 2025 | Consulting Fee | $2,600 |
| Exactech, Inc. Aug 7, 2025 | Consulting Fee | $1,300 |
| DePuy Synthes Products, Inc. Jul 31, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,796 |
| DePuy Synthes Products, Inc. Jul 31, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to Raynham, MA | $54.25 |
| Exactech, Inc. Jul 22, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $5,225 |
| Exactech, Inc. Jul 22, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to EDINA, MN · in-kind | $950 |
| Exactech, Inc. Jul 22, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to EDINA, MN · in-kind | $219 |
| DePuy Synthes Products, Inc. Jul 21, 2025 | Travel and Lodging RECLAIM · Ortho-Hip · travel to Raynham, MA · in-kind | $263 |
| DePuy Synthes Products, Inc. Jul 21, 2025 | Travel and Lodging RECLAIM · Ortho-Hip · travel to Raynham, MA · in-kind | $222 |
| DePuy Synthes Products, Inc. Jul 18, 2025 | Travel and Lodging INHANCE · Ortho-Shoulder · travel to Raynham, MA · in-kind | $161 |
| Exactech, Inc. Jun 30, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $1,300 |
| Exactech, Inc. Jun 13, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $2,600 |
| DePuy Synthes Products, Inc. Jun 4, 2025 | Travel and Lodging INHANCE · Ortho-Shoulder · travel to Raynham, MA · in-kind | $679 |
| Medical Device Business Services, Inc. May 19, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,124 |
| Medical Device Business Services, Inc. May 19, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to Raynham, MA | $50.88 |
| Medical Device Business Services, Inc. May 12, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $10,970 |
| Medical Device Business Services, Inc. May 12, 2025 | Travel and Lodging BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder · travel to SAINT LOUIS, MO | $44.05 |
| Medical Device Business Services, Inc. May 10, 2025 | Travel and Lodging NA · Ortho-Shoulder · travel to RAYNHAM, MA · in-kind | $662 |
| Medical Device Business Services, Inc. May 10, 2025 | Travel and Lodging NA · Ortho-Shoulder · travel to RAYNHAM, MA · in-kind | $519 |
| Medical Device Business Services, Inc. May 10, 2025 | Travel and Lodging NA · Ortho-Shoulder · travel to RAYNHAM, MA · in-kind | $165 |
| Medical Device Business Services, Inc. May 2, 2025 | Travel and Lodging HEALIX KNOTLESS PEEK · Sports Surgical · travel to CINCINNATI, OH · in-kind | $509 |
| Medical Device Business Services, Inc. May 2, 2025 | Travel and Lodging HEALIX KNOTLESS PEEK · Sports Surgical · travel to CINCINNATI, OH · in-kind | $202 |
| Exactech, Inc. Apr 25, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $13,375 |
| Exactech, Inc. Apr 25, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $13,375 |
| Exactech, Inc. Apr 25, 2025 | Travel and Lodging EQUINOXE PHX SYSTEM · travel to NEW YORK, NY · in-kind | $1,416 |
| Exactech, Inc. Apr 25, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to NEW YORK, NY · in-kind | $1,416 |
| Exactech, Inc. Apr 25, 2025 | Travel and Lodging EQUINOXE PHX SYSTEM · travel to NEW YORK, NY · in-kind | $693 |
| Exactech, Inc. Apr 25, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to NEW YORK, NY · in-kind | $693 |
| DePuy Synthes Products, Inc. Apr 21, 2025 | Consulting Fee BIOLOX DELTA; GLOBAL; Velys · Ortho-Shoulder | $1,688 |
| Exactech, Inc. Apr 11, 2025 | Consulting Fee | $7,845 |
| Exactech, Inc. Apr 11, 2025 | Consulting Fee | $7,845 |
| Exactech, Inc. Apr 11, 2025 | Travel and Lodging travel to ATLANTA, GA · in-kind | $895 |
| Exactech, Inc. Apr 11, 2025 | Travel and Lodging travel to ATLANTA, GA · in-kind | $237 |
| Exactech, Inc. Mar 31, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $650 |
| Exactech, Inc. Mar 27, 2025 | Consulting Fee | $1,138 |
| Exactech, Inc. Mar 4, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $3,250 |
| Exactech, Inc. Jan 31, 2025 | Consulting Fee EQUINOXE · ORTHOPAEDIC | $10,125 |
| Exactech, Inc. Jan 31, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to ORLANDO, FL · in-kind | $1,212 |
| Exactech, Inc. Jan 31, 2025 | Travel and Lodging EQUINOXE · ORTHOPAEDIC · travel to ORLANDO, FL · in-kind | $348 |
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.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 1 companies. The companies reported $24,483 in research payments for these studies, mostly to the institutions running them.
- Mitek Device Registry
Medical Device Business Services, Inc. - General Outcomes Registry
Medical Device Business Services, Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.