Infectious Disease Specialists in Oregon
Data updated monthly · Last refresh October 2026
128 Infectious Disease providers practice in Oregon, including 50 (39%) offering telehealth. The largest concentration is in Portland. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
128providers
50telehealth
Portlandtop city
Infectious Disease by city in Oregon
Choose a city to see providers there.
Where Infectious Disease Specialists in Oregon practice
From CMS Medicare enrollment records covering 81 of the 128 providers listed here (63%). Providers who do not bill Medicare are not included in these figures.
1%solo or small practice (under 10 clinicians)
10%mid-size group (10 to 99)
89%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Infectious Disease Specialists | All clinicians in group | Main city |
| University Professional Services | 28 | 1,683 | Portland |
| Providence Health and Services Oregon | 15 | 1,423 | Portland |
| Tuality Medical Group LLC | 11 | 289 | Hillsboro |
| Kaiser Foundation Health Plan of the Northwest | 9 | 1,805 | Clackamas |
| Oregon Oncology Specialists LLP | 7 | 41 | Salem |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Infectious Disease Specialists affiliated |
| Ohsu Hospital and Clinics | Portland | Nonprofit | 3 of 5 | 27 |
| Salem Hospital | Salem | Nonprofit | 3 of 5 | 10 |
| Hillsboro Medical Center | Hillsboro | Nonprofit | 3 of 5 | 10 |
| Providence Portland Medical Center | Portland | Nonprofit | 4 of 5 | 10 |
| Providence St Vincent Medical Center | Portland | Nonprofit | 4 of 5 | 6 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Infectious Disease providers in Oregon
Listed by city, largest first. 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. Carmen Sherer, MDBend, OR · No drug or device payments recorded (2025) ·
(541) 706-4878 Dr. Cynthia Maree, M.D.Bend, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 706-7734 Dr. Emma Considine, D.OBend, OR · No drug or device payments recorded (2025) ·
(541) 706-7734 Dr. Jon Lutz, MDBend, OR · No drug or device payments recorded (2025) ·
(541) 382-2811 Dr. Laura Selby, DOBend, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 706-7734 Dr. Laurie D'avignon, M.D.Bend, OR · No drug or device payments recorded (2025) ·
(541) 706-7734 Dr. Victor Nwanguma, M.D.Bend, OR · $213 in drug and device payments (2025) · Telehealth ·
(541) 706-6532 Dr. Cami Hilsendager, MDClackamas, OR · No drug or device payments recorded (2025) ·
(800) 813-2000 Dr. Freda Kerman, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 651-1880 Dr. Gerald Hutfles, DOClackamas, OR · $108 in drug and device payments (2025) ·
(503) 571-3165 Dr. Hien Nguyen, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-9130 Dr. Joseph Kane, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 571-3165 Dr. Keith Riley, M.D.Clackamas, OR · No drug or device payments recorded (2025) ·
(503) 652-2880 Dr. Wesley Tang, DOClackamas, OR · No drug or device payments recorded (2025) ·
(800) 813-2000 Dr. Adam Brady, M.D.Corvallis, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 768-5810 Dr. Jill Provaznik, MDCorvallis, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 768-5810 Dr. Melissa Whitman, DOCorvallis, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 768-5810 Dr. Porntip Kiatsimkul, MDCorvallis, OR · No drug or device payments recorded (2025) ·
(541) 768-5810 Dr. William Muth, MDCorvallis, OR · No drug or device payments recorded (2025) ·
(541) 768-5810 Dr. Robert Barnes, MDEugene, OR · No drug or device payments recorded (2025) ·
(541) 342-5088 Dr. Daniel Selinger, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 476-6644 Dr. Jorge Aldo Barajas Ochoa, MDGrants Pass, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 789-4505 Dr. Naveera Khan, MBBSGrants Pass, OR · No drug or device payments recorded (2025) ·
(541) 789-4505 Dr. Regina Won, M.D.Gresham, OR · $122 in drug and device payments (2025) · Telehealth ·
(503) 674-1122 Dr. Robert Lusk, MDHillsboro, OR · No drug or device payments recorded (2025) ·
(503) 848-5861 Dr. Arathi Prabha Kumar, MD Dr. Edward Blews, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 789-4207 Dr. Julia Kostka, MDMedford, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 789-4505 Dr. Oana MajorantMedford, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 732-6070 Dr. Pratibha Seshadri, M.DMedford, OR · No drug or device payments recorded (2025) ·
(541) 789-4505 Dr. Ruth Rabinovitch, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 773-1590 Dr. Amy Dechet, M.D.Portland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 215-6601 Dr. Andrew FlemingPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-8311 Dr. Andrew Leitz, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-8211 Dr. Angela VillamagnaPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-7735 Dr. Benjamin Chen, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-4971 Dr. Brian Kendall, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 215-6601 Dr. Brian Lauer, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 297-3371 Dr. Cameron Cover, MDPortland, OR · $28 in drug and device payments (2025) · Telehealth ·
(503) 216-7000 Dr. Cara Varley, MPHPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-8220 Dr. Caroline Castillo, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-7735 Dr. Christina Homer, MD PHDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-4971 Dr. Christopher Evans, MDPortland, OR · $66 in drug and device payments (2025) · Telehealth ·
(503) 494-1198 Dr. Christopher Pfeiffer, M.D., M.H.S.Portland, OR · No drug or device payments recorded (2025) ·
(503) 418-2292 Dr. Cliffton Bong, M.D.Portland, OR · $22 in drug and device payments (2025) · Telehealth ·
(503) 413-4340 Dr. David Gilbert, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 215-6601 Dr. David Merz, MD, PHDPortland, OR · No drug or device payments recorded (2025) ·
(503) 261-6028 Dr. Diana Antoniskis, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 249-5536 Dr. Elizabeth Church, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-4971 Dr. Ellen Earle, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-4971 Conditions Infectious Disease providers in Oregon commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Infectious Disease providers. Individual practices vary, so confirm with the provider before booking.
- Long COVID
- HIV care
- Lyme disease
- Recurrent infections
- Travel medicine
Common questions
How many Infectious Disease providers are in Oregon?There are 128 Infectious Disease providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.
Do Infectious Disease providers in Oregon offer telehealth?Yes. 50 of the 128 Infectious Disease providers in Oregon (about 39%) report offering telehealth services in CMS data.
Which cities in Oregon have the most Infectious Disease providers?Portland (79), Salem (8), Springfield (7) have the highest concentration of Infectious Disease providers in Oregon.
How many Infectious Disease providers in Oregon received drug or device company payments?23 of 128 Infectious Disease providers in Oregon (18%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Infectious Disease providers in Oregon treat?Infectious Disease providers commonly treat long COVID, HIV care, Lyme disease, recurrent infections, travel medicine and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles 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.
Do most Infectious Disease Specialists in Oregon work in independent practices or large health systems?Among 81 Infectious Disease Specialists in Oregon enrolled in Medicare, 1% bill through a solo or small practice with fewer than 10 clinicians, 10% through a mid-size group of 10 to 99, and 89% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Infectious Disease Specialists in Oregon work at?According to CMS facility affiliation records, the Oregon hospitals where the most Infectious Disease Specialists hold privileges are Ohsu Hospital and Clinics in Portland; Salem Hospital in Salem; Hillsboro Medical Center in Hillsboro.
Related reading on HealthcareDiscovery.AI
Infectious Disease in all 50 states Search all 128 in the directory Ask Zach for help choosing
Related
