Nicholas Cassis, M.D.
Endocrinology, Diabetes & Metabolism
Nicholas Cassis is an Endocrinology, Diabetes & Metabolism specialist based in Charleston, WV with over 47 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
With over 47 years in internal medicine, Nicholas Cassis, M.D. is a long-established endocrinology, diabetes & metabolism specialist in Charleston. A West Virginia University School of Medicine graduate since 1979, he brings 47+ years of experience. He regularly sees Medicare patients with hypertension, high cholesterol, and ischemic_heart (per CMS claims data).
At a glance
- Prescribes opioids less than 39% of reporting doctors in West Virginia
- Virtual visits available — no app or travel required
Older · 6894dNPPES updated 2007-07-08 · verify NPI on CMS · Verify license at West Virginia Board of Medicine
Contact & Location
Practice Location
415 Morris St Suite 300, Charleston, WV 25301-1842
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively.
Opioid Rx
↓ Lower = better0.99%
West Virginia avg: 3.7 · US avg: 5.1
✓ Higher than most doctors nationally(-4.1 pts)
0.99% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better40.6%
West Virginia avg: 82.7 · US avg: 82.8
⚠ Lower than most doctors nationally(-42.2 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
246
Unique beneficiaries
Standard volumePrescription Recipients
337
Patients prescribed
Prescriptions Written
1,516
Total claims
Total Medicare drug cost: $374k
Percentile rankings compared against 528 reporting peers in West Virginia.
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 Hypertension, High Cholesterol, and Ischemic Heart 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
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+21%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+4%) — 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 (+14%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%Conditions affecting emotional state, including depression and bipolar disorder
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+10%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$179 received from industry
6 transactions 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 Nicholas Cassis's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1979
West Virginia University School of Medicine
47 years in practice
Senior practitioner
Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, adrenal disorders, pituitary conditions, and polycystic ovary syndrome (PCOS).
Taxonomy: 207RE0101X
Education & Training
West Virginia University School of Medicine (Class of 1979)
Virtual Endocrinology, Diabetes & Metabolism Care With Nicholas Cassis
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Nicholas Cassis for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Charleston 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 Nicholas Cassis
NPI records show Dr. Cassis as active with telehealth listed in Charleston, WV. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (304) 345-6303.
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 Nicholas Cassis
Practice Location
415 Morris St Suite 300, Charleston, WV 25301-1842
Mailing Address
415 Morris St Suite 300, Charleston, WV 25301-1842
This is a provider directory. Contact the office directly to schedule appointments.
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