William Ratigan Ranger, M.D.
William Ratigan Ranger is a Vascular Surgery specialist based in Kalamazoo, MI with over 36 years of clinical experience. Offers virtual telehealth visits.
William Ratigan Ranger, M.D. has practiced surgery for 36+ years, working in group practice. A University of Michigan Medical School graduate since 1990, he brings 36+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and kidney disease.
At a glance
- Uses generic medications more than 22% of reporting doctors in Michigan
- Virtual visits available — no app or travel required
Older · 1209dNPPES updated 2023-01-31 · verify NPI on CMS · Verify license at Michigan Board of Medicine
Contact & Location
Practice Location
1815 Henson Ave, Kalamazoo, MI 49048
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 Chronic Kidney Disease.
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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+31%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+20%) — 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 (+15%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+19%) — a focus area for this doctor
Nicotine dependence and tobacco-related health complications
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 · 1990
University of Michigan Medical School
Board certified · Jan 30, 2023
Self-reported via NPPES
36 years in practice
Senior practitioner
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Taxonomy: 2086S0129X
Education & Training
University of Michigan Medical School (Class of 1990)
Mailing address
1815 Henson Ave, Kalamazoo, MI 49048-1510
Differs from practice location
Virtual Vascular Surgery Care With William Ratigan Ranger
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William Ratigan Ranger for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Kalamazoo required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about William Ratigan Ranger
Dr. Ranger is listed as active in the NPI registry with telehealth listed in Kalamazoo, MI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (269) 492-6500.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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