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; 401–500 of 1,276.

NameSpecialtyCity
Susan M Gritzner, PSY.D.Psychologist, ClinicalPortland, OR
Aaron Grossberg, MD, PHDRadiation OncologyPortland, OR
Supreetha Gubbala, MDFamily PracticeScappoose, OR
Alexander R Guimaraes, MD PHDDiagnostic RadiologyPortland, OR
Kenneth R Gundle, M.D.Orthopedic SurgeryPortland, OR
Seema R Gupta, MDOphthalmologyPortland, OR
Melanie Hakar, D.O.PathologyPortland, OR
Morgan B Hakki, MDInfectious DiseasePortland, OR
Nicolas Hall, ACNPC-AGNurse PractitionerPortland, OR
Stephen B Hall, MDPulmonary DiseasePortland, OR
Laurel K Hallock Koppelman, FNP-CNurse PractitionerPortland, OR
Amanda L Hamilton, PAPhysician AssistantPortland, OR
Bronwyn E Hamilton, MDDiagnostic RadiologyAlbuquerque, NM
Hans P Han, MDFamily PracticePortland, OR
James O Hancey, MDPsychiatryPortland, OR
Elizabeth M Haney, MDInternal MedicinePortland, OR
Juliana E Hansen, MDPlastic and Reconstructive SurgeryPortland, OR
Matthew Hansen, MDEmergency MedicinePortland, OR
Barry G Hansford, M.D.Diagnostic RadiologyPortland, OR
Nathan Hantke, PH.D.Psychologist, ClinicalPortland, OR
Shazib Haq, ODOptometryPortland, OR
Brooke M Harkness, O.D.OptometryTigard, OR
Rogelyn P Harlan, NP-CNurse PractitionerPortland, OR
David C Harmon, MD, MPHHospitalistPortland, OR
Allan Harrelson, DO, PHDCardiologyPortland, OR
Rebecca A Harrison, MDHospitalistPortland, OR
Ross Harrison, MDGynecological OncologyPortland, OR
Kerith J Hartmann, PA-CPhysician AssistantPortland, OR
Reem Hasan, MDInternal MedicinePortland, OR
Brigit A Hatch, MDFamily PracticePortland, OR
Joanna L Hatfield, M.D.Obstetrics & GynecologyPortland, OR
Anthony J Hayes, MDGeneral SurgeryMilwaukie, OR
Brandon M Hayes-Lattin, MDMedical OncologyPortland, OR
Susan Hayflick, MDPediatric MedicinePortland, OR
Kristen E HaynesNurse PractitionerPortland, OR
Zanice E Hays, M.D.Internal MedicinePortland, OR
Jeffrey M Healey, M.D.OphthalmologyPortland, OR
Jason C Hedges, M.D.UrologyPortland, OR
Payton E Heilman, MSN, APRN, FNP-CNurse PractitionerPortland, OR
Michael C Heinrich, MDHematology-OncologyPortland, OR
Ryan N Hellums, DOOtolaryngologyPortland, OR
Carmen Henderson, PA-CPhysician AssistantPortland, OR
Alan P Hendin, MDInternal MedicinePortland, OR
Michael J Hendricks, M.D.HospitalistPortland, OR
Andrew M Henning, APRNNurse PractitionerPortland, OR
Charles A Henrikson, MDClinical Cardiac ElectrophysiologyPortland, OR
Reynold Henry, MD, MPHGeneral SurgeryPortland, OR
Eric D Herman, MDFamily PracticePortland, OR
Lindsey L Hern, PA-CPhysician AssistantPortland, OR
Cathleen L Hernandez, PAPhysician AssistantPortland, OR
Alexander HerreraFamily PracticePortland, OR
Timothy L Herrick, MDFamily PracticePortland, OR
Heidi N Herrington, FNP-CNurse PractitionerPortland, OR
Melissa P Hershman, M.D.GastroenterologyPortland, OR
Daniel O Herzig, MDColorectal Surgery (Proctology)Portland, OR
Andrea S Herzka, MDOrthopedic SurgeryPortland, OR
Amie L Hiller, M.D.NeurologyPortland, OR
Daniel E Hillman, M.D.Interventional RadiologyPortland, OR
Amber M Hjorth, PHD, CRNPNurse PractitionerPortland, OR
Nathaniel J Hocker, MDNephrologyPortland, OR
Veronica R Hocker, MDPsychiatryPortland, OR
Jacob R Hodge, M.D.Diagnostic RadiologyPortland, OR
Anna K Hoenig, AGACNPNurse PractitionerPortland, OR
Natalie A Hoesly, MDOphthalmologyPortland, OR
Donna F Holden, PA-CPhysician AssistantPortland, OR
Christopher W Hollen, MDNeurologyPortland, OR
Lauren R Holmes, P.A.-CPhysician AssistantPortland, OR
Daniel HolzmacherPhysician AssistantPortland, OR
Christina Homer, PHDInfectious DiseaseSan Francisco, CA
Christopher S Hong, M.D.NeurosurgeryBoston, MA
Patricia Y Hong, M.D.Family PracticePortland, OR
Daniel Hoover, M.D.Internal MedicinePortland, OR
Aluko A HopeCritical Care (Intensivists)Portland, OR
Masahiro Horikawa, M.D.Interventional RadiologyPortland, OR
Noah Hornick, MD, PHDDermatologyNew Haven, CT
Haley P Hostetler, M.D.Allergy/ ImmunologyPortland, OR
Elizabeth A Hourihan, MDFamily PracticePortland, OR
Kyle D Hoyer, PA-CPhysician AssistantPortland, OR
Shawn Y Hsu, M.D.General SurgeryPortland, OR
Ted Huang, M.D.Hematology-OncologyGresham, OR
Kinsley A Hubel, MB BCH BAOInternal MedicinePortland, OR
Thomas W Huff, M.D.Orthopedic SurgeryPortland, OR
Adrienne R Hughes, M.D.Emergency MedicinePortland, OR
Annie K Hung, M.D.Medical OncologyGresham, OR
Arthur Y Hung, MDRadiation OncologyPortland, OR
Alan J Hunter, MDHospitalistPortland, OR
John G Hunter, MDGeneral SurgeryPortland, OR
Farah A Husain, M.D.General SurgeryPortland, OR
Kimberly Hutchison, MDNeurologyPortland, OR
Ryan B Hutchison, M.D.Family PracticePortland, OR
Thomas S Hwang, MDOphthalmologyPortland, OR
Audrey J Hyem, PA-CPhysician AssistantPortland, OR
Eliesa A Ing, MDOphthalmologyPortland, OR
Sudhir Isharwal, M.D.UrologyPortland, OR
Dalia Ivekich, NP-CNurse PractitionerPortland, OR
Ryan M Ivie, M.D.AnesthesiologyPortland, OR
Melissa A Jacobs, MDDiagnostic RadiologyDallas, TX
Thomas L Jacobs, ARNPNurse PractitionerSaint Helens, OR
Zachary JacobsInternal MedicinePortland, OR
David B Jacoby, MDPulmonary DiseasePortland, 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