Internal Medicine in Grants Pass, Oregon
Data updated monthly · Last refresh September 2026
33 Internal Medicine providers practice in Grants Pass, and 42% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Grants Pass
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Alexander Bonato, MDGrants Pass, OR · $18 in drug and device payments (2025) ·
(541) 472-7000 Dr. Allen Swanson, DOGrants Pass, OR · $133 in drug and device payments (2025) ·
(541) 472-7000 Dr. Andrew Pitzak, DOGrants Pass, OR · $25 in drug and device payments (2025) · Telehealth ·
(541) 476-6644 Dr. Bo Peng, M.D., PH.D.Grants Pass, OR · $18 in drug and device payments (2025) ·
(541) 472-7000 Dr. Bruce Stowell, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Christian Holland, D.O.Grants Pass, OR · $126 in drug and device payments (2025) ·
(541) 472-4777 Dr. Chutuoc Trandinh, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 862-2836 Dr. Collette Luttmer, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 244-1511 Dr. David Sanchez Vasquez, MDGrants Pass, OR · $18 in drug and device payments (2025) ·
(541) 472-7000 Dr. Dennis Minister, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 507-2170 Dr. Dylan Mathis, DOGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 472-7810 Dr. Edward Groenhout, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Eric Perry, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Gagan Bohara, M.D.Grants Pass, OR · $19 in drug and device payments (2025) ·
(541) 472-7000 Dr. Grant Lightfoot, MDGrants Pass, OR · $37 in drug and device payments (2025) ·
(541) 472-7000 Dr. Haitham Haddad, M.D.Grants Pass, OR · $140 in drug and device payments (2025) · Telehealth ·
(541) 476-6644 Dr. Hannah Courtney, DOGrants Pass, OR · $37 in drug and device payments (2025) ·
(541) 472-7000 Dr. Jasdeep SinghGrants Pass, OR · No drug or device payments recorded (2025) ·
(717) 231-8508 Dr. John Countiss, M.D.Grants Pass, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 476-6644 Dr. Kurt Brewster, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 474-1020 Dr. Laura Smiricky, MDGrants Pass, OR · $37 in drug and device payments (2025) ·
(541) 472-7000 Dr. Marcel Wiggers, MDGrants Pass, OR · $25 in drug and device payments (2025) · Telehealth ·
(541) 476-6644 Dr. Markus Opel, M.D.Grants Pass, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 476-6644 Dr. Minette Lukban, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(914) 563-5344 Dr. Mona Tara, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 244-2292 Dr. Nicole Cowley, D.O.Grants Pass, OR · $37 in drug and device payments (2025) ·
(541) 789-4281 Dr. Philip Murray, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Prabin Phuyal, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(732) 799-8857 Dr. Rayaan Asad Chaudhry, MDGrants Pass, OR · $37 in drug and device payments (2025) ·
(541) 472-7000 Dr. Rishiinder HarryGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 472-7000 Dr. Roger Steinbrenner, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 479-7568 Dr. Ronald Sinclair, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Thomas Brandes, MDGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Conditions Internal Medicine providers in Grants Pass, Oregon commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Grants Pass, Oregon?There are 33 Internal Medicine providers with active NPI records practicing in Grants Pass, according to federal NPPES data refreshed monthly.
How many Internal Medicine providers in Grants Pass received drug or device company payments?14 of 33 (42%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Grants Pass treat?Internal Medicine providers in Grants Pass commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Grants Pass Internal Medicine across Oregon