Clinicians affiliated with University Professional Services

1,724 clinicians on file with this group · most practice in Portland-Vancouver-Hillsboro, OR-WA · PAC ID 4880760107

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

1,276 clinicians affiliated with University Professional Services are in the 2024 Medicare Part B data, 917 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Physician Assistant (183) · Nurse Practitioner (140) · Family Practice (78) · Internal Medicine (60) · Emergency Medicine (51) · Ophthalmology (51) · Neurology (48) · Diagnostic Radiology (46) · General Surgery (41) · Hospitalist (41) · Pathology (31) · Medical Oncology (30) · Hematology-Oncology (28) · Orthopedic Surgery (27) · Cardiology (25) · Gastroenterology (21) · Infectious Disease (21) · Obstetrics & Gynecology (21) · Pulmonary Disease (20) · Dermatology (19) · Psychiatry (19) · Endocrinology (18) · Nephrology (18) · Otolaryngology (18) · Interventional Radiology (17) · Urology (17) · Psychologist, Clinical (16) · Anesthesiology (15) · Neurosurgery (14) · Optometry (11) · Radiation Oncology (10) · Plastic and Reconstructive Surgery (9) · Surgical Oncology (9) · Critical Care (Intensivists) (8) · Pediatric Medicine (8) · Rheumatology (8) · Vascular Surgery (8) · Hospice and Palliative Care (7) · Cardiac Surgery (5) · Clinical Cardiac Electrophysiology (5) · Hematology (5) · Allergy/ Immunology (4) · Colorectal Surgery (Proctology) (4) · Gynecological Oncology (4) · Licensed Clinical Social Worker (4) · Physical Medicine and Rehabilitation (4) · Thoracic Surgery (4) · Geriatric Medicine (3) · Interventional Cardiology (3) · Podiatry (3) · Micrographic Dermatologic Surgery (2) · Nuclear Medicine (2) · Oral Surgery (Dentist only) (2) · Pain Management (2) · Sleep Medicine (2) · Addiction Medicine (1) · Adult Congenital Heart Disease (1) · Hand Surgery (1) · Maxillofacial Surgery (1) · Medical Genetics and Genomics (1) · Sports Medicine (1)

Specialty links go to the specialty in Portland-Vancouver-Hillsboro, OR-WA.

Clinicians affiliated with University Professional Services, 2024

Alphabetical by last name; 101–200 of 1,276.

NameSpecialtyCity
Wendelin J Billinger, PA-CPhysician AssistantPortland, OR
Mohamad Bittar, M.D.RheumatologyPortland, OR
Morgan Black, MDEmergency MedicinePortland, OR
Matthew Blackburn, M.D.Medical OncologyPortland, OR
Charles D Blanke, MDMedical OncologyPortland, OR
Amela Blekic, M.D.PsychiatryPortland, OR
Teodora N Bochnakova, M.D.Interventional RadiologyPortland, OR
Elisa K Boden, M.D.GastroenterologySeattle, WA
James K Boehnlein, MDPsychiatryPortland, OR
Alexandra C Bolognese, MD, PHDGeneral SurgeryPortland, OR
Adrienne D Bonham, MDObstetrics & GynecologyPortland, OR
Erin M Bonura, MDInfectious DiseasePortland, OR
Jessica L Bordley, MDHospice and Palliative CarePortland, OR
Maggie E Bosley, MDGeneral SurgeryPortland, OR
Jennifer Botelho, PA-CPhysician AssistantPortland, OR
Raeann M Bourscheid, MDNeurologyPortland, OR
Elizabeth A Bower, MD, MPHInternal MedicinePortland, OR
Joshua D Bowley, PA-CPhysician AssistantPortland, OR
Ella BowmanInternal MedicinePortland, OR
John M Boyer, ODOptometryPortland, OR
Scott R Boynton, DPMPodiatryPortland, OR
Allison R Bradee, M.D.OphthalmologyPortland, OR
Jacqueline M Brady, M.D.Orthopedic SurgeryPortland, OR
Karen J Brasel, MDGeneral SurgeryPortland, OR
Theodore P Braun, M.D., PH.D.Medical OncologyPortland, OR
Diana E Brewer, PA-CPhysician AssistantHouston, TX
Aubrey BridgesPhysician AssistantScappoose, OR
Brian T Brinkerhoff, M.D.PathologyPortland, OR
Mitchell V Brinks, MDOphthalmologyEllensburg, WA
Craig S Broberg, MDAdult Congenital Heart DiseasePortland, OR
Dane J BrodkeOrthopedic SurgeryLos Angeles, CA
Matthew A Brodsky, MDNeurologyPortland, OR
Erik Brodt, M.D.Family PracticePortland, OR
Emma R Brooks, MDFamily PracticePortland, OR
Lindsay Brooks, PTA, PA-CPhysician AssistantPortland, OR
Mary C Brooks, MDGeriatric MedicinePortland, OR
Margaret Brophy, MDHospitalistPortland, OR
Charles Brown, MDEmergency MedicineHillsboro, OR
Kristle Brown, PAPhysician AssistantVancouver, WA
Peter A Brown, DONeurologyPortland, OR
Amanda S Bruegl, M.D.Gynecological OncologyPortland, OR
Irvan Bubic, MDEmergency MedicinePortland, OR
Bradley M Buchheit, MDFamily PracticePortland, OR
Anne M Buckmaster, MDFamily PracticePortland, OR
Tram Bui, PA-CPhysician AssistantPortland, OR
Catriona M Buist, PSYDPsychologist, ClinicalPortland, OR
Kim J Burchiel, MDNeurosurgeryPortland, OR
Joel Burnett, M.D.Internal MedicinePortland, OR
Rodica Busui, MD, PHDEndocrinologyPortland, OR
Laura K Byerly, MDGeriatric MedicinePortland, OR
Samuel A Camacho, M.D.CardiologyPortland, OR
John P Campbell, M.D., M.P.HOphthalmologyPortland, OR
Amy G Cantor, MDFamily PracticePortland, OR
Hans L Carlson, MDPhysical Medicine and RehabilitationPortland, OR
Nels L Carlson, MDPhysical Medicine and RehabilitationPortland, OR
Cory V Carlston, M.D.Hand SurgeryPortland, OR
Natoya S Carruthers, PA-CPhysician AssistantPortland, OR
James W Carson, PHDPsychologist, ClinicalPortland, OR
Dominic F Caruso, M.D.Family PracticeZuni, NM
Irina R Cassimatis, M.D.Obstetrics & GynecologyPortland, OR
Stephan A Castro, MDNeurologyPortland, OR
Katherine H Cavallo Hom, M.D.Diagnostic RadiologyPortland, OR
Kelly J Caverzagie, MDInternal MedicinePortland, OR
Jeremy P Cetnar, M.D.Medical OncologyPortland, OR
Scott Chadderdon, MDCardiologyPortland, OR
Arjun K Chagarlamudi, M.D.CardiologyPortland, OR
Nizar Chahin, M.D.NeurologyPortland, OR
Matthew G Chan, MDFamily PracticePortland, OR
Michael F Chang, M.D.GastroenterologyPortland, OR
Margot E Chase, PA-CPhysician AssistantPortland, OR
Aiyin Chen, M.D.OphthalmologyPortland, OR
Andy I Chen, MD, PHDHematology-OncologyPortland, OR
Benjamin C Chen, MDInternal MedicinePortland, OR
Emerson Y Chen, MDMedical OncologyPortland, OR
Grace Chen, MDAnesthesiologyPortland, OR
Yee-Shiuan Chen, M.D. PH.D.HospitalistPortland, OR
Zheyan Chen, M.D., PH.D.AnesthesiologyPortland, OR
Anthony M Cheng, M.D.Family PracticePortland, OR
Zhi Cheng, MDHospitalistLas Vegas, NV
Patsy ChenpanasEmergency MedicinePortland, OR
James C Chesnutt, MDFamily PracticeLake Oswego, OR
Mark S Chesnutt, MDPulmonary DiseasePortland, OR
Laura E Chess, M.D., MPHEmergency MedicinePortland, OR
Albert Chi, MDGeneral SurgeryPortland, OR
Sandy Hsiang Yu Chiang, MDFamily PracticeEverett, WA
Jared Chiarchiaro, MDPulmonary DiseasePortland, OR
Kristin L Childress, M.D.EndocrinologyPortland, OR
Ashley Chinn, PAPhysician AssistantPortland, OR
Sreenidhi ChintalapaniHospitalistPortland, OR
Stella Chiu, PAPhysician AssistantPortland, OR
Lucy Y Cho, M.D.HospitalistPortland, OR
Esther G ChongMedical OncologyPortland, OR
Esther K Choo, MDEmergency MedicinePortland, OR
Pavan Chopra, MDNephrologyPortland, OR
Gagandeep Choudhary, MBBSNuclear MedicinePortland, OR
Jyoti D Chouhan, DO, PHARMDUrologyPortland, OR
Samuel M Christensen, PA-CPhysician AssistantPortland, OR
Robert Christian, MDPathologyPortland, OR
Sandy Christiansen, M.D.Pain ManagementPortland, OR
Emily E Christopher, PA-CPhysician AssistantPortland, OR

Practice locations

Listed practice locations in Oregon, Washington.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations