Dr. John Clark, M.D.
Nephrology
20+
Years in Practice
Practice Locations
1 location
About Dr. John Clark
John Clark, M.D. is a healthcare provider practicing in Huntsville, AL.
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.
24
Years Experience
1
Location
1
States Licensed
Credentials & Board Certifications
Primary Specialty
NephrologyCredentials verified via NPI Registry (NPPES)
Education & Training
Medical School
University Of Alabama School Of Medicine
Class of 2002
Licenses & Practice States
Licensed in 1 state
| State | License | Classification | Primary |
|---|---|---|---|
| Tennessee | MD0000040647 | Internal Medicine |
Public Data Summary for Dr. John Clark
With 20 years of practice, Dr. John Clark is an established nephrology provider, M.D., after earning their medical degree at University Of Alabama School Of Medicine in 2002. Dr. currently practices at North Alabama Ent Associates in Huntsville, Alabama. Their National Provider Identifier (NPI) is 1578631784, 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. John Clark as a moderate-volume nephrology provider, treating approximately 536 Medicare beneficiaries and delivering 2K services in the most recent reporting year. That panel size indicates balanced experience across typical Medicare conditions.
Under the Physician Payments Sunshine Act, CMS reports that Dr. John Clark received $636 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
$636
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. John Clark
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0 reviews
Nephrology Providers Nearby
Same primary specialty near ZIP 35805
FAQ
Frequently asked questions about Dr. John Clark
What does Dr. John Clark specialize in?
Dr. John Clark specializes in Nephrology.
Where does Dr. John Clark practice?
Dr. John Clark practices at North Alabama Ent Associates in Huntsville, Alabama.
Does Dr. John Clark accept Medicare?
CMS records show that Dr. John Clark accepts Medicare assignment. CMS billing data shows 536 Medicare beneficiaries treated in the most recent reporting year.
What is Dr. John Clark's NPI number?
Dr. John Clark's National Provider Identifier (NPI) is 1578631784. 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. John Clark been practicing?
Dr. John Clark has approximately 20 years of practice experience, having graduated from University Of Alabama School Of Medicine in 2002.