Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Matthew Maxwell Kellogg, MD

Individual provider Anesthesiology Physician · NPI 1932151990

Dr. Matthew Maxwell Kellogg, MD practises Anesthesiology in Corvallis, Oregon. Graduated from University of Nevada School of Medicine in 2001, 25 years ago. Practices with Good Samaritan Hospital Corvallis, a 375-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
25
Trained at
University of Nevada School of Medicine
Licensed in
OR
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3600 NW Samaritan Dr
Corvallis, OR 97330-5472
Phone: (541) 757-5111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 707 Sw Washington St, Portland, OR 97205-3536 — (503) 299-9906

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD26009 (OR)

Record details

NPI number1932151990
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESJuly 24, 2023
Certification dateJuly 24, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF NEVADA SCHOOL OF MEDICINE
Graduated 2001 (25 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 patients117
Services billed 124 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $41 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Good Samaritan Regional Medical Center Hospital · Corvallis, OR
  • Samaritan Pacific Community Hospital Hospital · Newport, OR

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