Dr. Robert C. Barnes, D.O.
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- Michigan State University College of Osteopathic Medicine (1992)
- Years since graduation
- 34
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 114
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
- 1992Medical school: Michigan State University College of Osteopathic 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
-
Internal Medicine Physician primary
MI license 5101011671
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Trinity Health Oakland Hospital Pontiac, MI
- Mclaren Oakland Pontiac, MI
Medical groups
- Powerback Rehabilitation LLC (649 clinicians)
- Michigan Healthcare Professionals PC (529 clinicians)
- Mclaren Community Based Primary Care Group (56 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
- 114
- Services billed
- 1,822
- Patients’ average age
- 78
| Service | Times | Patients |
|---|---|---|
| Insertion of needle into vein for collection of blood sample | 279 | 108 |
| Established patient office or other outpatient visit, 30-39 minutes | 255 | 91 |
| Established patient office or other outpatient visit, 20-29 minutes | 152 | 77 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 85 | 85 |
| Annual depression screening, 5 to 15 minutes | 77 | 77 |
| Injection of drug or substance under skin or into muscle | 70 | 38 |
| Administration of influenza virus vaccine | 57 | 55 |
| Urinalysis, manual test | 54 | 39 |
| Influenza vaccine split virus, preservative free | 54 | 52 |
| Advance care planning, first 30 minutes | 39 | 39 |
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 |
|---|---|
| Rosuvastatin Calcium Other prescribers in Clarkston, MI | 371 |
| Levothyroxine Sodium Other prescribers in Clarkston, MI | 280 |
| Amlodipine Besylate Other prescribers in Clarkston, MI | 171 |
| Olmesartan Medoxomil Other prescribers in Clarkston, MI | 164 |
| Metoprolol Succinate Other prescribers in Clarkston, MI | 163 |
| Ezetimibe Other prescribers in Clarkston, MI | 156 |
| Losartan Potassium Other prescribers in Clarkston, MI | 150 |
| Omeprazole Other prescribers in Clarkston, MI | 140 |
| Metformin Hcl Er (metformin hcl) Other prescribers in Clarkston, MI | 123 |
| Clopidogrel (clopidogrel bisulfate) Other prescribers in Clarkston, MI | 122 |
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, 11 companies reported 23 payments worth $365 in total to this clinician.
| Amgen Inc. | $138 |
|---|---|
| Exact Sciences Corporation | $41.78 |
| AbbVie Inc. | $34.17 |
| Lilly USA, LLC | $30.73 |
| Pfizer Inc. | $22.61 |
| Philips North America LLC | $22.18 |
| Daiichi Sankyo Inc. | $17.27 |
| Iti, Inc. (d/b/a Intra-cellular Therapies, Inc.) | $14.98 |
| Food and Beverage | $365 |
|---|
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.