Michael Shihjay Chen, M.D.
Family Medicine Physician · Tigard, OR
Michael Shihjay Chen, M.D. is a family medicine physician with a practice address in Tigard, Oregon, and NPI 1023005410, issued on Sep 30, 2005. Check the license (Oregon MD24492, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael Shihjay Chen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD24492 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9250 SW Hall Blvd, Tigard, OR 97223
- Phone
- (503) 221-0161
- Enumerated
- Sep 30, 2005
- Record last updated
- Aug 27, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (503) 452-3200
- Medicaid ID
- 227379 OR
- Medicare enrollment
- Enrolled (PECOS I20040205000606); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 9250 SW Hall Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Bugas, DOFamily Medicine Physician1104936301
- Michael Cunningham, PA-CPhysician Assistant1154517175
- Stephen Dehn, MSPTPhysical Therapist1477031730
- Sheeten Doshi, M.D.Gastroenterology Physician1154307478
- Ertan Esmer, MDOtolaryngology Physician1619069887
- Makindra Fitton, DPTPhysical Therapist1679548465
Verify Michael Shihjay Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD24492Check 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 family medicine physician in 2024
621 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 106 claims were for opioids.
Most prescribed
- Oxycodone Hcl38 claims
- Levothyroxine Sodium36 claims
- Atorvastatin Calcium22 claims
- Meloxicam19 claims
- Omeprazole19 claims
- Buspirone Hcl18 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): 87.8 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: $18.65
1 payment: food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- One Medical Group IncPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
53 family medicine physician records list a practice address in Tigard
They are 53 of the 3,081 NPPES records with a practice address in Tigard, and 2,847 family medicine physician records in Oregon.
All 53 in Tigard → All 2,847 in Oregon → Every provider in Tigard →
Other family medicine physician records in Oregon
- Roxana Abbott, DOPortland, OR1275799082
- David Abdun-Nur, M.D.Grants Pass, OR1396737847
- Traci Ackron, D.O.Hillsboro, OR1336588789
- Orlando Acosta, MDHood River, OR1912990375
- Michele Adamcak, D.O.Tigard, OR1114097227
- Standley Adamek, DOTigard, OR1144515230
- Harry Adamo, MDSpringfield, OR1235191412
- Allyson AdamsClackamas, OR1043899537
- Caroline Adams, MDGresham, OR1164840815
- Justin Adams, M.D.Medford, OR1760616866
Common questions
What is Michael Shihjay Chen, M.D.'s NPI number?
Michael Shihjay Chen, M.D.'s National Provider Identifier (NPI) is 1023005410, issued on Sep 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael Shihjay Chen, M.D. located?
The NPPES record lists a practice address at 9250 SW Hall Blvd, Tigard, OR, 97223. Phone: (503) 221-0161. Providers update this record themselves, so call before visiting.
How can I verify Michael Shihjay Chen, M.D.'s license?
NPPES lists Oregon license number MD24492, 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 Michael Shihjay Chen, M.D. prescribe under Medicare Part D?
In 2024, Michael Shihjay Chen, M.D. had 621 Medicare Part D claims for 53 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Michael Shihjay Chen, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.8 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.