Internal Medicine in Walla Walla, Washington
Data updated monthly · Last refresh September 2026
38 Internal Medicine providers practice in Walla Walla, and 18% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Walla Walla
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. Allison Bauer, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Bayu Teklu, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Benjamin Leach, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 522-5145 Dr. Benjamin Rodriguez, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-6650 Dr. Bruce Barga, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-8110 Dr. Cynthia Rasch, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3320 Dr. Dan Grinstead, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Delwyn Baker, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Donald Rowberg, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Eric Ball, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Eric Jauhiainen, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Eric Schwartzkopf, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-8110 Dr. Ernesto Enrique Garcia Rodriguez, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-2100 Dr. Galen Mcquarrie, M. D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Haris Zaheer, MDWalla Walla, WA · No drug or device payments recorded (2025) · Telehealth ·
(509) 897-3600 Dr. James Mason, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-0480 Dr. Joanne Lynn Perez, M.D.Walla Walla, WA · $478 in drug and device payments (2025) · Telehealth ·
(509) 525-8110 Dr. John Heffernan, DOWalla Walla, WA · $235 in drug and device payments (2025) · Telehealth ·
(509) 897-5836 Dr. Jon Gardner, MDWalla Walla, WA · No drug or device payments recorded (2025) · Telehealth ·
(509) 525-8110 Dr. Joseph Meyer, MDWalla Walla, WA · $35 in drug and device payments (2025) ·
(509) 525-3320 Dr. Karen Geheb, M.D.Walla Walla, WA · $98 in drug and device payments (2025) ·
(509) 897-3320 Dr. Karl Tjerandsen, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-3320 Dr. Kevin Andrews, MDWalla Walla, WA · $159 in drug and device payments (2025) ·
(509) 525-3720 Dr. Lori Brown, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-8110 Dr. Lynn KemperWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-2980 Dr. Michael Parnicky, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Michael Wilcox, M.D.Walla Walla, WA · $974 in drug and device payments (2025) ·
(509) 525-3720 Dr. Mohammed Omar Ahmed, M.DWalla Walla, WA · $166 in drug and device payments (2025) ·
(509) 897-3320 Dr. Patricia Mcilvaine, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Paul Parker, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-8110 Dr. Philip Hooper, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Robert Fleming, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(507) 525-5200 Dr. Roshan Patel, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-3320 Dr. Samuel Rayapati, M.DWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-5200 Dr. Sri Harika Meka, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-3320 Dr. Stevie Mazyck, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 897-3320 Dr. Susan Thompson, M.D.Walla Walla, WA · No drug or device payments recorded (2025) ·
(509) 525-3720 Dr. Thomas Koehler, MDWalla Walla, WA · No drug or device payments recorded (2025) ·
(509) 522-5145 Conditions Internal Medicine providers in Walla Walla, Washington 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 Walla Walla, Washington?There are 38 Internal Medicine providers with active NPI records practicing in Walla Walla, according to federal NPPES data refreshed monthly.
How many Internal Medicine providers in Walla Walla received drug or device company payments?7 of 38 (18%) 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 Walla Walla treat?Internal Medicine providers in Walla Walla 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 Walla Walla Internal Medicine across Washington