Ariel Chen, M.D.
Ophthalmology Physician · Happy Valley, OR
Ariel Chen, M.D. is an ophthalmology physician with a practice address in Happy Valley, Oregon, and NPI 1730684184, issued on Mar 28, 2018. Check the license on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ariel Chen
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD477769 PA
Self-reported in NPPES; status is on the state search - Practice location
- 12100 SE Stevens RD, Happy Valley, OR 97086
- Phone
- (180) 081-3200
- Enumerated
- Mar 28, 2018
- Record last updated
- Aug 11, 2023
- Medicare enrollment
- Enrolled (PECOS I20231026001016); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 322 in Oregon → Look up another NPI →
Also registered at 12100 SE Stevens RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sirena Huang, ODOptometrist1861988503
Verify Ariel Chen 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
36% fewer Medicare Part D claims than the average ophthalmology physician in 2024
969 Medicare Part D claims for 421 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Prednisolone Acetate371 claims
- Latanoprost76 claims
- Diclofenac Sodium71 claims
- Cyclosporine66 claims
- Polymyxin B Sul-Trimethoprim52 claims
- Dorzolamide-Timolol34 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $244.24
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The NorthwestPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariel Chen among 322 ophthalmology physician records in Oregon
Ariel Chen, M.D. is one of 322 ophthalmology physician records with a practice address in Oregon. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2018 · median 2007 among the 189 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Oregon
There are 322 ophthalmology physician records in Oregon.
All 322 in Oregon → Every provider in Happy Valley → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Jonathan Greene, MDClackamas, OR 970861437302320
- Zakary Hoffelt, MDPortland, OR 970861093821613
- Natasha Kye, MDHappy Valley, OR 970861023377595
- Peter Marsh, MDClackamas, OR 970861629081435
- Dinelli Monson, M.D.Clackamas, OR 970861992940613
- Rasanamar Sandhu, M.D.Happy Valley, OR 970861457612145
- Mithlesh Sharma, M.D.Clackamas, OR 970861528052719
- Elise Timtim, MDClackamas, OR 970861225657257
Common questions
What is Ariel Chen, M.D.'s NPI number?
Ariel Chen, M.D.'s National Provider Identifier (NPI) is 1730684184, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Chen, M.D. located?
The NPPES record lists a practice address at 12100 SE Stevens RD, Happy Valley, OR, 97086. Phone: (180) 081-3200. Providers update this record themselves, so call before visiting.
How can I verify Ariel Chen, 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 Ariel Chen, M.D. prescribe under Medicare Part D?
In 2024, Ariel Chen, M.D. had 969 Medicare Part D claims for 421 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Ariel Chen, M.D.'s MIPS final score?
The 2023 MIPS final score is 88.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.