Truman Ray Chun, DO
Internal Medicine Physician · Corvallis, OR
Truman Ray Chun, DO is an internal medicine physician with a practice address in Corvallis, Oregon, and NPI 1588248355, issued on May 7, 2021. Check the license (Oregon PG205536, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Truman Ray Chun
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- PG205536 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3600 NW Samaritan Dr, Corvallis, OR 97330
- Phone
- (541) 768-4906
- Enumerated
- May 7, 2021
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20241101000448); accepts Medicare assignment
- Medical or professional school
- At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, 2021
- 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 3600 NW Samaritan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Truman Ray Chun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license PG205536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
257 Medicare Part D claims for 72 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Amlodipine Besylate17 claims
- Gabapentin12 claims
- Levothyroxine Sodium11 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
- Hawaii Permanente Medical Group IncHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Truman Ray Chun among 2,116 internal medicine physician records in Oregon
Truman Ray Chun, 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2008 among the 1,232 with a school on file
- Record last updated2021 · 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 Truman Ray Chun, DO's NPI number?
Truman Ray Chun, DO's National Provider Identifier (NPI) is 1588248355, issued on May 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Truman Ray Chun, DO located?
The NPPES record lists a practice address at 3600 NW Samaritan Dr, Corvallis, OR, 97330. Phone: (541) 768-4906. Providers update this record themselves, so call before visiting.
How can I verify Truman Ray Chun, DO's license?
NPPES lists Oregon license number PG205536, 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 Truman Ray Chun, DO prescribe under Medicare Part D?
In 2024, Truman Ray Chun, DO had 257 Medicare Part D claims for 72 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.