NPPES file of Aug 9, 2026

Andrew Cho Tsen, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Portland, OR

Andrew Cho Tsen, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Portland, Oregon, and NPI 1659364719, issued on Aug 24, 2005. Check the license (Oregon MD20029, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659364719
Name
Andrew Cho Tsen
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
MD20029 OR
21592 AZ
MD00043090 WA
Self-reported in NPPES; status is on the state search
Practice location
2222 NW Lovejoy St, Portland, OR 97210
Phone
(503) 226-6321
Enumerated
Aug 24, 2005
Record last updated
Sep 26, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(503) 227-3422
Medicaid IDs
8198038 WA
084009 OR
Medicare enrollment
Enrolled (PECOS I20040602001347); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2222 NW Lovejoy St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jennifer Balentine, MDOphthalmology Physician1962482638
  2. Connie Barber, ANPNurse Practitioner1891787602
  3. James Borden, MDInternal Medicine Physician1679555742
  4. Dustin Bronsdon, AU.D.Audiologist1851726319
  5. Julie Cohn, M.D.Geriatric Psychiatry Physician1669608402
  6. Robert Courtox, PAPhysician Assistant1184626970

Verify Andrew Cho Tsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD20029
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

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73% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

27 Medicare Part D claims for 17 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.

  1. Andrew Tsen27
  2. Specialty average101

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): 86 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.

  1. Qualityout of 100 · 30% of the final score77.8
  2. Costout of 100 · 30%74.2
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $781.20

20 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Tsen$781.20
  2. Specialty average$7,828.84

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

  1. Legacy Clinics LLCHillsboro, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Andrew Cho Tsen among 67 thoracic surgery (cardiothoracic vascular surgery) physician records in Oregon

Andrew Cho Tsen, MD is one of 67 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1988 · median 1999 among the 39 with a school on file
  • Record last updated2013 · 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 208G00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Oregon

There are 67 thoracic surgery (cardiothoracic vascular surgery) physician records in Oregon.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Robert Dubose, MDPortland, OR 972101578610374
  2. Kai Engstad, M.D.Portland, OR 972101174793830
  3. Jonathan Hill, MDPortland, OR 972101740272277
  4. Albert Krause, MDPortland, OR 972101124010509
  5. John Lemmer, MDPortland, OR 972101730171182
  6. Mark Martin, MDPortland, OR 972101548252992
  7. Joseph Okies, MDPortland, OR 972101205828563
  8. Pasala Ravichandran, MDPortland, OR 972101487669990

Common questions

What is Andrew Cho Tsen, MD's NPI number?

Andrew Cho Tsen, MD's National Provider Identifier (NPI) is 1659364719, issued on Aug 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Cho Tsen, MD located?

The NPPES record lists a practice address at 2222 NW Lovejoy St, Portland, OR, 97210. Phone: (503) 226-6321. Providers update this record themselves, so call before visiting.

How can I verify Andrew Cho Tsen, MD's license?

NPPES lists Oregon license number MD20029, 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 Andrew Cho Tsen, MD prescribe under Medicare Part D?

In 2024, Andrew Cho Tsen, MD had 27 Medicare Part D claims for 17 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.

What is Andrew Cho Tsen, MD's MIPS final score?

The 2023 MIPS final score is 86 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.