Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Andrew Gessel, DO

Individual provider Internal Medicine Physician · NPI 1124555966

Dr. Andrew Gessel, DO practises Internal Medicine in Corvallis, Oregon. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2017, 9 years ago. Practices with Good Samaritan Hospital Corvallis, a 375-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
9
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
OR
In the registry since
2017
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3600 NW Samaritan Dr
Corvallis, OR 97330-3737
Phone: (541) 768-5111
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DO195055 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 40654 (OR)

Record details

NPI number1124555966
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMay 11, 2017
Last updated in NPPESJanuary 14, 2021
Certification dateJanuary 14, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2017 (9 years in practice)
Group practice Good Samaritan Hospital Corvallis — 375 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients135
Services billed 542 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Good Samaritan Hospital Corvallis

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 375 clinicians in the practice; 12 are shown here.

Other providers in Corvallis