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; 1,001–1,100 of 1,276.

NameSpecialtyCity
Briana Schulzetenberg, PAPhysician AssistantPortland, OR
Sara U Schwanke Khilji, MD, MPHHospitalistPortland, OR
Payton E SchwantesOrthopedic SurgeryLas Vegas, NV
David L Scott, MDGeneral SurgeryPortland, OR
Gregory D ScottPathologyPortland, OR
Dorian Scull, PA-CPhysician AssistantPortland, OR
Andrei D Sdrulla, MD, PHDPain ManagementPortland, OR
Diana M Seaders, PAPhysician AssistantSalem, OR
Meghan A Seeley, MSN, FNPNurse PractitionerPortland, OR
Emily M SeeryNurse PractitionerPortland, OR
Daniel R Seifer, M.D.Pulmonary DiseaseVancouver, WA
Meghan E Sells, PA-CPhysician AssistantPortland, OR
Merav Sendowski, MDHematologyPortland, OR
Lishiana S Shaffer, MDObstetrics & GynecologyHillsboro, OR
Adi Shafir, M.D.Hospice and Palliative CarePortland, OR
Oren Shaked, M.D.General SurgeryPortland, OR
Evan F Shalen, M.D.CardiologyPortland, OR
Sherene N Shalhub, MDVascular SurgeryRenton, WA
Julia E Shannon, WHNPNurse PractitionerHillsboro, OR
Katie A Sharff, MDInfectious DiseasePortland, OR
Kristen T Sharp, PA-CPhysician AssistantPortland, OR
Kaveh Sharzehi, MDGastroenterologyPortland, OR
Joseph J Shatzel, M.D.Hematology-OncologyPortland, OR
Christopher R Shaw, MDEmergency MedicinePortland, OR
Brandan R Sheets, NPNurse PractitionerPortland, OR
Julia F Shellhorn, ARNPNurse PractitionerPortland, OR
Rivfka ShenoyGeneral SurgeryPortland, OR
Brett C Sheppard, MDGeneral SurgeryPortland, OR
Patrick SheppardInternal MedicinePortland, OR
Qiuying Shi, MDPathologyPortland, OR
Sara E Shimanek, MDFamily PracticePortland, OR
Maisie L Shindo, M.D.OtolaryngologyPortland, OR
John E Shoffer, PA-CPhysician AssistantPortland, OR
Tanaya Shree, M.D., PH.D.Medical OncologyPortland, OR
Hilary A Shreves, ACNPNurse PractitionerPortland, OR
Hayley Shugart, APRNNurse PractitionerPortland, OR
Monica K Sikka, M.D.Infectious DiseasePortland, OR
Elizabeth W Silbermann, M.D.NeurologyPortland, OR
Rebecca W Silbermann, MDHematology-OncologyPortland, OR
Lisa C Silbert, MDNeurologyPortland, OR
Aaron M Silver, M.D.HospitalistPortland, OR
Derek Simmons, NPNurse PractitionerPortland, OR
Eric L Simpson, MDDermatologyPortland, OR
Asha Singh, MDNeurologyBend, OR
Alison H Skalet, MDOphthalmologyPortland, OR
Joe M Skariah, DOFamily PracticeEdmonds, WA
Melissa J Skinner, AGACNPNurse PractitionerPortland, OR
Abbey Smiley, MDEmergency MedicineNashville, TN
Josiah D Smiley, MDFamily PracticeBirmingham, AL
Justin R Smith, MDNephrologyPortland, OR
Marian E Smith, DOInternal MedicinePortland, OR
Parrish Smith, PA-CPhysician AssistantPortland, OR
Spencer L Smith, PA-CPhysician AssistantPortland, OR
Timothy L Smith, MDOtolaryngologyPortland, OR
Erica L Smith-Cohen, AGACNPNurse PractitionerPortland, OR
Ariel K Smits, MDFamily PracticePortland, OR
Jonathan R Soffer, NPNurse PractitionerPortland, OR
Mark A Sofia, M.D.GastroenterologyPortland, OR
Roya Sohaey, MDDiagnostic RadiologyPortland, OR
Alexandra O Sokolova, M.D.Medical OncologyPortland, OR
Eleasa A Sokolski, MDAddiction MedicinePortland, OR
Joel S Solomon, MDPlastic and Reconstructive SurgeryPortland, OR
Anna V Solotskaya, MDHospitalistPortland, OR
Howard K Song, MDThoracic SurgeryPortland, OR
Divya Sood, M.D.Surgical OncologyPortland, OR
Amy E Sothern, PAPhysician AssistantPortland, OR
Timothy Sotman, MDDiagnostic RadiologyPortland, OR
Machya Spelletich-PecoraroNurse PractitionerPortland, OR
David Spencer, MDNeurologyPortland, OR
Hunter C Spencer, D.O.Internal MedicineHillsboro, OR
Stephen E Spurgeon, MDHematology-OncologyPortland, OR
Megan N Stack, FNPNurse PractitionerPortland, OR
Kathryn Stadeli, M.D.General SurgerySacramento, CA
Kelsey J St. Amand, PA-C, MPHPhysician AssistantPortland, OR
Caroline Stanley, PA-CPhysician AssistantPortland, OR
Michael S Stanley, M.D.PsychiatryPortland, OR
Jenna W Stapleton, PHDPsychologist, ClinicalPortland, OR
Leslie J Starkey, M.D.Diagnostic RadiologyPortland, OR
Amanda L Staudt, AGACNPNurse PractitionerPortland, OR
Pamela J St Clair, FNP-BCNurse PractitionerPortland, OR
Eric C Stecker, M.D.Clinical Cardiac ElectrophysiologyPortland, OR
Eric A Steele, MDOphthalmologyPortland, OR
Johannes K Steiner, M.D.CardiologyPortland, OR
Jennifer A Stephani, MDEmergency MedicineSacramento, CA
Kaitlyn A Stettnichs, MDFamily PracticePortland, OR
Hillary C Stiefel, M.D.OphthalmologyVancouver, WA
Robin Stiller, M.D.Pulmonary DiseasePortland, OR
Amanda St JohnNurse PractitionerPortland, OR
Christine Stolsig, PAPhysician AssistantPortland, OR
Cheryl Stomberg, FNPNurse PractitionerPortland, OR
Jill J Storey, PA-CPhysician AssistantPortland, OR
Katie H Stowers, DOHospice and Palliative CarePortland, OR
Lynne M Strasfeld, MDInfectious DiseasePortland, OR
Lindee M Strizich, M.D.HospitalistPortland, OR
Luke C Strnad, M.D.Infectious DiseasePortland, OR
Marshall Strother, MDUrologyPortland, OR
Andrea M Stroud, M.D.General SurgeryPortland, OR
Richard D Stutzman, M.D.OphthalmologyPortland, OR
Christopher G SuciuPathologyPortland, OR
James A Suero, MDInterventional CardiologyLongview, WA

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