Benjamin Siemanowski, M.D.
Gastroenterology Internal Medicine
Benjamin Siemanowski is a Gastroenterology Internal Medicine specialist based in Bellingham, WA with over 26 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Benjamin Siemanowski, M.D. has been part of the Bellingham medical community since 2007 in group practice. A Jefferson Medical College of Thomas Jefferson University graduate since 2000, he brings 26+ years of experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data). CMS MIPS quality score: 87.21/100 (2023).
At a glance
- Federal MIPS score higher than 39% of MIPS-scored doctors in Washington
- Virtual visits available — no app or travel required
Older · 1095dNPPES updated 2023-05-24 · verify NPI on CMS · Verify license at Washington Medical Commission
Contact & Location
Practice Location
3111 Woburn St Ste 201, Bellingham, WA 98226-6610
How Does This Doctor Compare?
MIPS Score
202387.21/100
Washington avg: 87.4 · US avg: 83.6
✓ Higher than most doctors nationally(+3.6 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better71%
Washington avg: 85.1 · US avg: 82.8
⚠ Lower than most doctors nationally(-11.8 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
399
Unique beneficiaries
Standard volumePrescription Recipients
475
Patients prescribed
Prescriptions Written
1,038
Total claims
Total Medicare drug cost: $484k
Percentile rankings compared against 1,521 reporting peers in Washington.
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
US avg: 70.4%↓ Fewer patients than average (-1%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-10%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-6%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-9%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$286 received from industry
8 transactions reported in 2018 ·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 2018, attributed to Benjamin Siemanowski's NPI.
Patient Reviews
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2000
Sidney Kimmel Medical College at Thomas Jefferson University
Board certified · May 23, 2023
Self-reported via NPPES
26 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
Jefferson Medical College of Thomas Jefferson University (Class of 2000)
Virtual Internal Medicine Care With Benjamin Siemanowski
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Benjamin Siemanowski for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Bellingham 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 Benjamin Siemanowski
NPI records show Dr. Siemanowski as active with telehealth listed in Bellingham, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (360) 734-1420.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact Benjamin Siemanowski
Practice Location
3111 Woburn St Ste 201, Bellingham, WA 98226-6610
Mailing Address
3111 Woburn St Ste 201, Bellingham, WA 98226-6610
This is a provider directory. Contact the office directly to schedule appointments.
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