William V Harrer, M.D.
Medical Oncology Internal Medicine
William V Harrer is a Medical Oncology Internal Medicine specialist based in Sequim, WA with over 37 years of clinical experience. Offers virtual telehealth visits.
With over 37 years in internal medicine, William V Harrer, M.D. is a long-established medical oncology internal medicine specialist in Sequim. Trained at Jefferson Medical College of Thomas Jefferson University (class of 1989), he has been practicing for over 37 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).
Older · 954dNPPES updated 2023-10-12 · verify NPI on CMS · Verify license at Washington Medical Commission
Contact & Location
Practice Location
844 N 5th Ave, Sequim, WA 98382-3045
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 Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-1%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+17%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+8%) — a focus area for this doctor
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+17%) — a focus area for this doctor
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
US avg: 20.4%↑ More patients than average (+17%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-1%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1989
Jefferson Medical College of Thomas Jefferson University
Board certified · Oct 11, 2023
Self-reported via NPPES
37 years in practice
Senior practitioner
Medical oncologists diagnose and treat cancer using chemotherapy, immunotherapy, targeted therapy, and hormone therapy. They coordinate care with surgical oncologists and radiation oncologists for comprehensive cancer treatment.
Taxonomy: 207RX0202X
Education & Training
Jefferson Medical College of Thomas Jefferson University (Class of 1989)
Mailing address
Po Box 850, Port Angeles, WA 98362-0146
Differs from practice location
Virtual Medical Oncology Care With William V Harrer
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William V Harrer for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Sequim required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about William V Harrer
Dr. Harrer is listed as active in the NPI registry with telehealth listed in Sequim, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (360) 839-8953.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact William V Harrer
Practice Location
844 N 5th Ave, Sequim, WA 98382-3045
Mailing Address
Po Box 850, Port Angeles, WA 98362-0146
This is a provider directory. Contact the office directly to schedule appointments.
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