Timothy King Liem, MD
Vascular Surgery Physician · Portland, OR
Timothy King Liem, MD is a vascular surgery physician with a practice address in Portland, Oregon, and NPI 1790882561, issued on Sep 20, 2006. Check the license (Oregon MD22836, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Timothy King Liem
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- MD22836 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3181 SW Sam Jackson Park RD, Portland, OR 97239
- Phone
- (503) 494-7593
- Enumerated
- Sep 20, 2006
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 287891 OR
- Medicare enrollment
- Enrolled (PECOS I20040527000385); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3181 SW Sam Jackson Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alex AamodtCritical Care Medicine Registered Nurse1154257590
- Jefferson Abaricia, MD, PHDStudent in an Organized Health Care Education/Training Program1073215711
- Kenneth Abbey, MDAnesthesiology Physician1588779342
- Matthew Abbott, PA-CMedical Physician Assistant1154738003
- Ayah Abdelsalam Megahed, MD, MSCVascular & Interventional Radiology Physician1023503596
- Obada Abdulrazzak, MDStudent in an Organized Health Care Education/Training Program1598567430
Verify Timothy King Liem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD22836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average vascular surgery physician in 2024
104 Medicare Part D claims for 37 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Clopidogrel34 claims
- Xarelto15 claims
- Eliquis13 claims
- Atorvastatin Calcium11 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).
Industry payments in 2024: $167.50
1 payment: food and beverage; the largest payer was Penumbra, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 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 2 group practices
- Tuality Medical Group LLCHillsboro, OR
- University Professional ServicesBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular Surgery Physician providers in Oregon
There are 61 vascular surgery physician records in Oregon.
Other vascular surgery physician records in Oregon
- Cherrie Abraham, MDPortland, OR1649658766
- Philip Alexander, MDPortland, OR1386640688
- Amir Azarbal, M.D.Portland, OR1497951867
- James Ballard, M.D.Bend, OR1134324528
- Marcos Barnatan, MDPortland, OR1477512051
- Brock Bennett, MDMedford, OR1578092193
- Juan Castillo, M.D.Medford, OR1609957877
- Richard Cook, M.D.Wilsonville, OR1184869448
- Jeffrey Crawford, M.D.Corvallis, OR1003106071
- Leo Daab, M.D.Portland, OR1245274851
Common questions
What is Timothy King Liem, MD's NPI number?
Timothy King Liem, MD's National Provider Identifier (NPI) is 1790882561, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy King Liem, MD located?
The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 494-7593. Providers update this record themselves, so call before visiting.
How can I verify Timothy King Liem, MD's license?
NPPES lists Oregon license number MD22836, 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 Timothy King Liem, MD prescribe under Medicare Part D?
In 2024, Timothy King Liem, MD had 104 Medicare Part D claims for 37 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Timothy King Liem, MD'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.