Karen Ta, M.D.
Emergency Medicine Physician · Portland, OR
Karen Ta, M.D. is an emergency medicine physician with a practice address in Portland, Oregon, and NPI 1073907978, issued on Mar 27, 2015. Check the license (Oregon MD192638, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen Ta
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD192638 OR
MD61294371 WA
Self-reported in NPPES; status is on the state search - Practice location
- 10300 SE Main St, Portland, OR 97216
- Phone
- (503) 257-2500
- Enumerated
- Mar 27, 2015
- Record last updated
- May 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20190607001241); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,079 in Oregon → Look up another NPI →
Verify Karen Ta in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD192638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average emergency medicine physician in 2024
142 Medicare Part D claims for 114 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 18 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil24 claims
- Oxycodone Hcl16 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 MIPS final score for 2023 (Medicare payment program): 97.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Portland Adventist Medical CenterPortland, OR
- The Vancouver Clinic Inc PSVancouver, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ta among 1,079 emergency medicine physician records in Oregon
Karen Ta, 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2015 · median 2013 among the 557 with a school on file
- Record last updated2025 · 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 Portland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Alec Belman, MDPortland, OR 972161992755987
- Mathew Berner, MDPortland, OR 972161831391358
- Ameet Brahmavar, MDPortland, OR 972161205959947
- Hani Darwich, MDPortland, OR 972161003873340
- Kevin Dean, M.D.Portland, OR 972161841215480
- Marcel Dupre', MDPortland, OR 972161326000944
- Erik Egsieker, MDPortland, OR 972161205898806
- Joe Howton, MDPortland, OR 972161942263579
Common questions
What is Karen Ta, M.D.'s NPI number?
Karen Ta, M.D.'s National Provider Identifier (NPI) is 1073907978, issued on Mar 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ta, M.D. located?
The NPPES record lists a practice address at 10300 SE Main St, Portland, OR, 97216. Phone: (503) 257-2500. Providers update this record themselves, so call before visiting.
How can I verify Karen Ta, M.D.'s license?
NPPES lists Oregon license number MD192638, 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 Karen Ta, M.D. prescribe under Medicare Part D?
In 2024, Karen Ta, M.D. had 142 Medicare Part D claims for 114 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Karen Ta, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.8 of 100. 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.