Stephen Lumin Chen, M.D.
Gastroenterology Internal Medicine
Stephen Lumin Chen is a Gastroenterology Internal Medicine specialist based in Tualatin, OR with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Stephen Lumin Chen, M.D. has practiced internal medicine for 25+ years, working in group practice. He graduated from University of Chicago, Pritzker School of Medicine in 2001 and has 25+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
Older · 908dNPPES updated 2023-11-28 · verify NPI on CMS · Verify license at Oregon Medical Board
Contact & Location
Practice Location
19250 Sw 90th Ave, Tualatin, OR 97062-7585
How Does This Doctor Compare?
Medicare Patients
214
Unique beneficiaries
Standard volumePrescription Recipients
248
Patients prescribed
Prescriptions Written
625
Total claims
Total Medicare drug cost: $200k
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
High blood pressure — a leading risk factor for heart disease and stroke
Joint inflammation causing pain, swelling, and stiffness
Excessive worry or fear that interferes with daily life
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
Weakened bones that are more prone to fractures, common in older adults
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$32 received from industry
1 transaction reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Stephen Lumin Chen's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2001
University of Chicago, Pritzker School of Medicine
Board certified · Nov 27, 2023
Self-reported via NPPES
25 years in practice
Experienced
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
University of Chicago, Pritzker School of Medicine (Class of 2001)
Mailing address
541 Ne 20th Ave Ste 225, Portland, OR 97232-2895
Differs from practice location
Virtual Internal Medicine Care With Stephen Lumin Chen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Stephen Lumin Chen for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Tualatin required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Stephen Lumin Chen
Dr. Chen is listed as active in the NPI registry with telehealth listed in Tualatin, OR. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (503) 692-3750.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Stephen Lumin Chen
Practice Location
19250 Sw 90th Ave, Tualatin, OR 97062-7585
Mailing Address
541 Ne 20th Ave Ste 225, Portland, OR 97232-2895
This is a provider directory. Contact the office directly to schedule appointments.
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