Keith Alexander Luther, MD
Keith Alexander Luther is an Internal Medicine specialist based in Mercer Island, WA with over 33 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Keith Alexander Luther, MD has practiced internal medicine for 33+ years, working in group practice. A University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) graduate since 1993, he brings 33+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis.
At a glance
- Prescribes opioids less than 49% of reporting doctors in Washington
- Uses generic medications more than 59% of reporting doctors in Washington
- Virtual visits available — no app or travel required
Older · 96dNPPES updated 2026-02-16 · verify NPI on CMS · Verify license at Washington Medical Commission
Contact & Location
Practice Location
3236 78th Ave Se Ste 200, Mercer Island, WA 98040-3500
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better2.04%
Washington avg: 5.7 · US avg: 5.1
✓ Higher than most doctors nationally(-3.1 pts)
Typical range among reporting doctors in Washington2.04% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better90%
Washington avg: 85.1 · US avg: 82.8
✓ Higher than most doctors nationally(+7.2 pts)
Typical range among reporting doctors in WashingtonHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
184
Unique beneficiaries
Standard volumePrescription Recipients
303
Patients prescribed
Prescriptions Written
3,228
Total claims
Total Medicare drug cost: $251k
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 (-4%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-12%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-18%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-9%) — 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 · 1993
University of Illinois College of Medicine
Board certified · Feb 15, 2026
Self-reported via NPPES
33 years in practice
Senior practitioner
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Education & Training
University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (Class of 1993)
Mailing address
Po Box 25608, Salt Lake City, UT 84125-0608
Differs from practice location
Virtual Internal Medicine Care With Keith Alexander Luther
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Keith Alexander Luther for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Mercer Island 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 Keith Alexander Luther
NPI records show Dr. Luther as active with telehealth listed in Mercer Island, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (206) 275-5060.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Keith Alexander Luther
Practice Location
3236 78th Ave Se Ste 200, Mercer Island, WA 98040-3500
Mailing Address
Po Box 25608, Salt Lake City, UT 84125-0608
This is a provider directory. Contact the office directly to schedule appointments.
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