Frank Y. Chen, M.D.
Internal Medicine Physician · Clackamas, OR
Frank Y. Chen, M.D. is an internal medicine physician with a practice address in Clackamas, Oregon, and NPI 1144484767, issued on Jul 13, 2008. Check the license (Oregon MD151125, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Frank Y. Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD151125 OR
Self-reported in NPPES; status is on the state search - Practice location
- 10180 SE Sunnyside RD, Clackamas, OR 97015
- Phone
- (503) 652-2880
- Enumerated
- Jul 13, 2008
- Record last updated
- Nov 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20101108001247); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 10180 SE Sunnyside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Abajian, MDDiagnostic Radiology Physician1942732300
- Samer Abufadil, MDInternal Medicine Physician1750437653
- Jeremy Adler, M.D.Anatomic Pathology & Clinical Pathology Physician1548617483
- Alejandro Aguilar, PA-CPhysician Assistant1740940006
- Usman Ahmad, D.O.Internal Medicine Physician1326288697
- Hyun Jung AhnPhysical Therapist1245014703
Verify Frank Y. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD151125Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average internal medicine physician in 2024
576 Medicare Part D claims for 142 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 30 claims were for opioids.
Most prescribed
- Potassium Chloride38 claims
- Clopidogrel37 claims
- Atorvastatin Calcium31 claims
- Metoprolol Succinate27 claims
- Furosemide22 claims
- Amlodipine Besylate21 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).
Frank Y. Chen among 2,116 internal medicine physician records in Oregon
Frank Y. Chen, 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 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2007 · 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).
101 internal medicine physician records list a practice address in Clackamas
They are 101 of the 2,098 NPPES records with a practice address in Clackamas, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Clackamas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lisa Ashcraft, MDClackamas, OR 970151801851746
- Kirthika Balakrishnan, MDClackamas, OR 970151881655256
- Stephanie Cha, MDClackamas, OR 970151902832371
- Alla Comardelle, M.D.Clackamas, OR 970151558397034
- Gregory Garcia, MDClackamas, OR 970151922036219
- Randall Gore, M.D.Clackamas, OR 970151639163447
- Gene Hong, M.D.Clackamas, OR 970151417905506
- Chieko Misaki, M.D.Clackamas, OR 970151225093172
Common questions
What is Frank Y. Chen, M.D.'s NPI number?
Frank Y. Chen, M.D.'s National Provider Identifier (NPI) is 1144484767, issued on Jul 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Frank Y. Chen, M.D. located?
The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 652-2880. Providers update this record themselves, so call before visiting.
How can I verify Frank Y. Chen, M.D.'s license?
NPPES lists Oregon license number MD151125, 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 Frank Y. Chen, M.D. prescribe under Medicare Part D?
In 2024, Frank Y. Chen, M.D. had 576 Medicare Part D claims for 142 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.