Mahinda Takeshi Ratnayake, M.D.
Emergency Medicine Physician · Hillsboro, OR
Mahinda Takeshi Ratnayake, M.D. is an emergency medicine physician with a practice address in Hillsboro, Oregon, and NPI 1144412073, issued on Aug 14, 2007. Check the license (Oregon MD27707, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mahinda Takeshi Ratnayake
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD27707 OR
Self-reported in NPPES; status is on the state search - Practice location
- 335 SE 8TH Ave, Hillsboro, OR 97123
- Phone
- (503) 681-1111
- Enumerated
- Aug 14, 2007
- Record last updated
- Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,079 in Oregon → Look up another NPI →
Also registered at 335 SE 8TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evan AcerboSurgical Physician Assistant1649885344
- Yassmin Atefi, DOPsychiatry Physician1396234175
- Shaun Babcock, LCSWSocial Worker1760834568
- Jennifer Bevacqua, NPPediatric Nurse Practitioner1326056847
- Frederique Blouin, PHARMDAmbulatory Care Pharmacist1699306464
- Nicholas Boespflug, M.D, PH.D.Emergency Medicine Physician1497140909
Verify Mahinda Takeshi Ratnayake in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD27707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average emergency medicine physician in 2024
165 Medicare Part D claims for 123 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Cefuroxime31 claims
- Ondansetron Odt14 claims
- Hydrocodone-Acetaminophen12 claims
- Prednisone12 claims
- Oxycodone Hcl11 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): 100 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).
Mahinda Takeshi Ratnayake among 1,079 emergency medicine physician records in Oregon
Mahinda Takeshi Ratnayake, M.D. is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Oregon
There are 1,079 emergency medicine physician records in Oregon.
All 1,079 in Oregon → Every provider in Hillsboro → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nicholas Boespflug, M.D, PH.D.Hillsboro, OR 971231497140909
- Charles Brown, MDHillsboro, OR 971231952834327
- Sergio Camba, MDHillsboro, OR 971231801474366
- Ian CelyHillsboro, OR 971231164862017
- Leah CelyHillsboro, OR 971231962842823
- Brendan Cunningham, DOHillsboro, OR 971231083871057
- Rodney Dodge, M.D.Hillsboro, OR 971231003855685
- Brian Dye, M.D.Hillsboro, OR 971231417344458
Common questions
What is Mahinda Takeshi Ratnayake, M.D.'s NPI number?
Mahinda Takeshi Ratnayake, M.D.'s National Provider Identifier (NPI) is 1144412073, issued on Aug 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mahinda Takeshi Ratnayake, M.D. located?
The NPPES record lists a practice address at 335 SE 8TH Ave, Hillsboro, OR, 97123. Phone: (503) 681-1111. Providers update this record themselves, so call before visiting.
How can I verify Mahinda Takeshi Ratnayake, M.D.'s license?
NPPES lists Oregon license number MD27707, 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 Mahinda Takeshi Ratnayake, M.D. prescribe under Medicare Part D?
In 2024, Mahinda Takeshi Ratnayake, M.D. had 165 Medicare Part D claims for 123 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Mahinda Takeshi Ratnayake, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.