Pediatric Surgeons in Oregon
Data updated monthly · Last refresh October 2026
21 Pediatric Surgery providers practice in Oregon. 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.
21providers
Portlandtop city
Pediatric Surgery by city in Oregon
Choose a city to see providers there.
Where Pediatric Surgeons in Oregon practice
From CMS Medicare enrollment records covering 4 of the 21 providers listed here (19%). Providers who do not bill Medicare are not included in these figures.
Largest practice groups
| Group (as registered with Medicare) | Pediatric Surgeons | All clinicians in group | Main city |
| University Professional Services | 2 | 1,683 | Portland |
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.
Pediatric Surgery 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. Alejandro Ruiz-elizalde, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 216-6560 Dr. Andrew Zigman, M.D., C.M.Portland, OR · No drug or device payments recorded (2025) ·
(503) 203-2040 Dr. Colin Gause, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 216-6050 Dr. Cynthia Gingalewski, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 413-4300 Dr. Elizabeth Fialkowski, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-7764 Dr. Jeannie Chun, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 216-6050 Dr. John Campbell, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-7764 Dr. Kenneth Azarow, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8708 Dr. Kenneth Pippus, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 216-6050 Dr. Marilyn Butler, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-7764 Dr. Mark Silen, MD, MBAPortland, OR · No drug or device payments recorded (2025) ·
(503) 310-9611 Dr. Marvin Harrison, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-7764 Dr. Mary Helikson, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 216-8654 Dr. Mubeen Jafri, MDPortland, OR · $101 in drug and device payments (2025) ·
(503) 460-0065 Dr. Nicholas Hamilton, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-8708 Dr. Raphael Sun, M.D.Portland, OR · $3,844 in drug and device payments (2025) ·
(503) 494-7764 Dr. Sanjay Krishnaswami, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-7764 Dr. Sonia Butterworth, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 216-8654 Dr. Trae RobisonPortland, OR · No drug or device payments recorded (2025) ·
(503) 413-3690 Dr. Garret Zallen, MDSpringfield, OR · No drug or device payments recorded (2025) ·
(541) 222-6135 Dr. Kimberly Ruscher, MDSpringfield, OR · No drug or device payments recorded (2025) ·
(541) 222-6135 Common questions
How many Pediatric Surgery providers are in Oregon?There are 21 Pediatric Surgery providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.
Which cities in Oregon have the most Pediatric Surgery providers?Portland (19), Springfield (2) have the highest concentration of Pediatric Surgery providers in Oregon.
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.
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