Doctor profile · Federal record

Dr. Andrew Tsen, MD

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

  • NPI 1659364719
  • Accepts Medicare
  • MIPS 85.3 / 100 · 2023
  • 38 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2222 Nw Lovejoy St, Suite 315
Portland, OR 972103033
(503) 226-6321
fax (503) 227-3422
Mailing address
847 Ne 19Th Ave, Suite 300
Portland, OR 972322684

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
September 26, 2013
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
208G00000X — NUCC code
State licenses (3)
Oregon #MD20029 · Arizona #21592 · Washington #MD00043090
Medicaid (2)
WA #8198038 · OR #084009

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659364719. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
45
Distinct HCPCS
3
Medicare allowed
$27,237
HCPCS Description Services Patients Avg allowed
99205 New patient office or other outpatient visit, 60-74 minutes 19 19 $227
33533 Coronary artery bypass using artery graft, 1 graft 14 14 $1,624
33508 Harvest of vein using an endoscope 12 12 $15

In context: peer comparison

Among 12 peers in Portland Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, average services per provider: 28. This provider delivers 1.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$781
Transactions
20
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Abiomed 11 $428.71
Atricure, INC. 1 $145.68
AstraZeneca Pharmaceuticals Lp 2 $55.06
Baxter Healthcare 2 $43.09
Ethicon US, LLC 1 $36.79
Medtronic, INC. 1 $25.34
Solventum Corporation 1 $24.89
Artivion, INC. 1 $21.64

By nature of payment

Food and Beverage
$781

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Tsen's medical specialty?
Dr. Andrew Tsen practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Portland, OR.
Where does Dr. Andrew Tsen practice?
Dr. Andrew Tsen practices at 2222 Nw Lovejoy St, Portland, OR 972103033. Office phone: 5032266321.
What is Dr. Andrew Tsen's NPI?
Dr. Andrew Tsen's National Provider Identifier (NPI) is 1659364719, issued by NPPES.
Does Dr. Andrew Tsen accept Medicare assignment?
Yes. Dr. Andrew Tsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Tsen commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99205); Coronary artery bypass using artery graft, 1 graft (HCPCS 33533); Harvest of vein using an endoscope (HCPCS 33508). Source: CMS Medicare Physician & Other Practitioners file.