Courtney Chason, DO
Internal Medicine Physician · Corvallis, OR
Courtney Chason, DO is an internal medicine physician with a practice address in Corvallis, Oregon, and NPI 1053057091, issued on May 11, 2022. Check the license (Oregon DO227481, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Courtney Chason
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- DO227481 OR
PG211365 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3521 NW Samaritan Dr Ste 201, Corvallis, OR 97330
- Phone
- (541) 768-5140
- Enumerated
- May 11, 2022
- Record last updated
- Dec 8, 2025
- Medicare enrollment
- Enrolled (PECOS I20251013002403); accepts Medicare assignment
- Medical or professional school
- University Of The Incarnate Word School Of Osteo Medicine, 2022
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 3521 NW Samaritan Dr Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lynn Bentson, M.D, MACPInternal Medicine Physician1619916483
- Craig Brauer, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1790206100
- Skotti Church, M.DGeriatric Medicine (Internal Medicine) Physician1205060555
- Anne Marie Collum, DOInternal Medicine Physician1629463237
- Samantha Domingo, PSY.D.Psychologist1013336510
- Kayla Fenton, MDInternal Medicine Physician1285371138
Verify Courtney Chason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO227481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
367 Medicare Part D claims for 38 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium26 claims
- Escitalopram Oxalate20 claims
- Lisinopril17 claims
- Levothyroxine Sodium15 claims
- Oxycodone Hcl14 claims
- Gabapentin13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Good Samaritan Hospital CorvallisCorvallis, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Courtney Chason among 2,116 internal medicine physician records in Oregon
Courtney Chason, DO is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2008 among the 1,232 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
129 internal medicine physician records list a practice address in Corvallis
They are 129 of the 4,096 NPPES records with a practice address in Corvallis, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Corvallis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Steven Athay, M.D.Corvallis, OR 973301477502375
- Lynn Bentson, M.D, MACPCorvallis, OR 973301619916483
- Charlene Carroll, M.D.Corvallis, OR 973301275577769
- Brian Curtis, M.D.Corvallis, OR 973301245289115
- Ulrike Guempel, M.D.Corvallis, OR 973301912956897
- Kien Huynh, M.D.Corvallis, OR 973301619918034
- Janel Lawrence, M.D.Corvallis, OR 973301184673998
- Libor Pavlosek, M.D.Corvallis, OR 973301376510420
Common questions
What is Courtney Chason, DO's NPI number?
Courtney Chason, DO's National Provider Identifier (NPI) is 1053057091, issued on May 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Courtney Chason, DO located?
The NPPES record lists a practice address at 3521 NW Samaritan Dr Ste 201, Corvallis, OR, 97330. Phone: (541) 768-5140. Providers update this record themselves, so call before visiting.
How can I verify Courtney Chason, DO's license?
NPPES lists Oregon license number DO227481, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Courtney Chason, DO prescribe under Medicare Part D?
In 2024, Courtney Chason, DO had 367 Medicare Part D claims for 38 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.