Dr. Cassandra Williams, MD
Internal Medicine
18+
Years in Practice
Practice Locations
1 location
About Dr. Cassandra Williams
Cassandra Williams, MD is a healthcare provider practicing in Amherst, NY.
Specialty Definition
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.
21
Years Experience
1
Location
2
States Licensed
Credentials & Board Certifications
Additional Specialties
Primary Specialty
Internal MedicineCredentials verified via NPI Registry (NPPES)
Education & Training
Medical School
Other
Class of 2005
Licenses & Practice States
Licensed in 2 states
| State | License | Classification | Primary |
|---|---|---|---|
| North Carolina | 200800022 | Internal Medicine | — |
| New York | 302772 | Internal Medicine |
Public Data Summary for Dr. Cassandra Williams
With 18 years of practice, Dr. Cassandra Williams is an established internal medicine provider, MD, after earning their medical degree at Other in 2005. Dr. currently practices at in Amherst, New York. Their National Provider Identifier (NPI) is 1558546820, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.
CMS Medicare data shows Dr. Cassandra Williams as a lower-volume internal medicine provider, treating approximately 211 Medicare beneficiaries and delivering 829 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.
Under the Physician Payments Sunshine Act, CMS reports that Dr. Cassandra Williams received $48 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.
Transparency & Safety
Public records from CMS and OIG databases
Industry Payments
$48
Total payments received from pharmaceutical and medical device companies in 2023.
Source: CMS Open Payments (Sunshine Act)
Opioid Prescribing
This provider has no opioid prescriptions on file in Medicare Part D data.
Insurance & Accessibility
Reviews
Community reviews for Dr. Cassandra Williams
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0 reviews
Internal Medicine Providers Nearby
Same primary specialty near ZIP 14226
FAQ
Frequently asked questions about Dr. Cassandra Williams
What does Dr. Cassandra Williams specialize in?
Dr. Cassandra Williams specializes in Internal Medicine. Secondary taxonomy filings also list Internal Medicine.
Where does Dr. Cassandra Williams practice?
Dr. Cassandra Williams practices at in Amherst, New York.
Does Dr. Cassandra Williams accept Medicare?
CMS records show that Dr. Cassandra Williams accepts Medicare assignment. CMS billing data shows 211 Medicare beneficiaries treated in the most recent reporting year.
What is Dr. Cassandra Williams's NPI number?
Dr. Cassandra Williams's National Provider Identifier (NPI) is 1558546820. This is the unique 10-digit number the Centers for Medicare & Medicaid Services assigns to every practicing US healthcare provider. You can verify this number directly at the NPPES NPI Registry.
How long has Dr. Cassandra Williams been practicing?
Dr. Cassandra Williams has approximately 18 years of practice experience, having graduated from Other in 2005.