Dr. Swee Lian Tan, M.D.
What this data tells you about Dr. Tan
Dr. Swee Lian Tan is a vascular surgery physician in Seattle, WA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Tan performed 2,045 Medicare services across 1,082 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tan received a total of $3,435 from 9 pharmaceutical and/or device companies across 40 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular surgery physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Tan is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
751 | $70 | $236 |
| Vein wound compression bandage application, lower leg, ankle, and foot Application of compression bandages to the lower leg, ankle, and foot to manage vein-related wounds. |
249 | $105 | $398 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
153 | $33 | $105 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
139 | $123 | $466 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
124 | $125 | $529 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
119 | $102 | $345 |
| Arterial plaque removal in leg A procedure to remove plaque buildup from the arteries in the leg to restore blood flow. |
96 | $6,137 | $28,192 |
| Additional blood vessel ultrasound evaluation An ultrasound exam of a blood vessel that includes a radiologist's review. This code applies to each additional vessel evaluated beyond the initial one. |
69 | $139 | $531 |
| Arterial plaque removal, initial vessel A procedure to remove plaque buildup from an artery in the leg. This is performed on the first vessel treated during the session. |
66 | $7,617 | $28,922 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
47 | $1,083 | $4,142 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
37 | $117 | $527 |
| Ultrasound of arm and leg arteries A non-invasive imaging test that uses sound waves to examine the blood vessels in the arms and legs. It evaluates blood flow and checks for blockages or other vascular issues. |
33 | $93 | $476 |
| Ultrasound of blood vessel, initial vessel An ultrasound exam of a blood vessel that includes a radiologist's review of the initial vessel. |
23 | $798 | $3,030 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
23 | $146 | $693 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
23 | $210 | $780 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
22 | $15 | $44 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts A complete ultrasound exam of the aorta, vena cava, groin vessels, or bypass grafts. This imaging test uses sound waves to visualize these blood vessels. |
20 | $140 | $654 |
| Online digital E/M service, established patient, 21+ minutes An online digital evaluation and management service for an established patient. This service requires a total time of 21 or more minutes over a period of up to 7 days. |
19 | $30 | $162 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
17 | $82 | $350 |
| Balloon angioplasty of groin artery, initial vessel A procedure to widen a narrowed or blocked artery in the groin using a small balloon. The balloon is inflated to compress plaque against the artery wall and restore blood flow. |
15 | $1,044 | $7,963 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Tan is a clinical cardiology specialist, with above-average Medicare volume (top 4% in WA), with low-engagement industry engagement, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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