John Cuong Doan, M.D.
Internal Medicine Physician · Portland, OR
John Cuong Doan, M.D. is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1609194398, issued on May 5, 2010. Check the license on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Cuong Doan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 60326101 WA
Self-reported in NPPES; status is on the state search - Practice location
- 500 NE Multnomah St Ste 100, Portland, OR 97232
- Phone
- (541) 515-2325
- Enumerated
- May 5, 2010
- Record last updated
- Sep 14, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161219001595); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 500 NE Multnomah St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Haley Battis, RNRegistered Nurse1013563501
- Britt Belling, CRNACertified Registered Nurse Anesthetist1992042808
- Jennifer Black, MDHospice and Palliative Medicine (Emergency Medicine) Physician1184791055
- Rebecca Buddington, RN, NP-CFamily Nurse Practitioner1831648146
- Abigail BusathStudent in an Organized Health Care Education/Training Program1497622484
- Barbara Caffaratti, M.D.Specialist1700979242
Verify John Cuong Doan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average internal medicine physician in 2024
927 Medicare Part D claims for 220 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Metoprolol Succinate75 claims
- Jardiance60 claims
- Furosemide54 claims
- Pradaxa45 claims
- Metoprolol Tartrate39 claims
- Tamsulosin Hcl38 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Cuong Doan among 2,116 internal medicine physician records in Oregon
John Cuong Doan, M.D. 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 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2009 · median 2008 among the 1,232 with a school on file
- Record last updated2016 · 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).
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jay Brown, MDPortland, OR 972321306874037
- Wiley Chan, MDPortland, OR 972321669588828
- Homer Chin, MDPortland, OR 972321376572537
- Katherine Dahlke, MDPortland, OR 972321598830812
- Bukhosi Dube, M.D.Portland, OR 972321619132891
- Sheila Jhansale, MDPortland, OR 972321922049030
- Christina Kemper, M.D.Portland, OR 972321427213230
- Samuel Loeb, M.D.Portland, OR 972321508091521
Common questions
What is John Cuong Doan, M.D.'s NPI number?
John Cuong Doan, M.D.'s National Provider Identifier (NPI) is 1609194398, issued on May 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Cuong Doan, M.D. located?
The NPPES record lists a practice address at 500 NE Multnomah St Ste 100, Portland, OR, 97232. Phone: (541) 515-2325. Providers update this record themselves, so call before visiting.
How can I verify John Cuong Doan, M.D.'s license?
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 John Cuong Doan, M.D. prescribe under Medicare Part D?
In 2024, John Cuong Doan, M.D. had 927 Medicare Part D claims for 220 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.