NICHOLAS DEFILIPPIS, M.D.
UNION INTERNAL MEDICINE GROUP PA
Direct Primary Care
Expert management of complex adult health needs through primary and preventive care.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- Rutgers R W Johnson Medical School (cam/New Bruns/Pisc)
- Graduated
- 1985
- Medicare specialty
- Internal Medicine
- Group practice
- Union Internal Medicine Group PA · 2 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked October 2026.
About
Internal medicine focuses on the diagnosis and treatment of complex illnesses in adults. Nicholas Defilippis, M.D., practices within the Union Internal Medicine Group PA in Union, New Jersey. Because this practice operates on a direct-pay model, patients pay for services directly rather than through traditional insurance billing.
The field of internal medicine manages acute and chronic conditions affecting adult systems. Care encompasses preventive screenings, managing complex comorbidities like heart disease or diabetes, and providing diagnostic evaluation for unexplained symptoms.
The practice is situated within a group setting, allowing for collaborative care. Patients should note that the practice accepts Medicare assignments.
Areas of Focus
Conditions Treated
Specialties
Patients Served
Frequently Asked Questions
What is the primary focus of internal medicine?
Internal medicine focuses on the diagnosis and treatment of complex illnesses in adults, managing both acute and chronic conditions.
Does this practice accept Medicare?
Yes, the practice accepts Medicare assignments.
What does 'direct-pay' mean for billing?
A direct-pay model means patients pay for services directly to the practice rather than having the provider bill a third-party insurance company.
What types of care does an internist typically manage?
Internists manage preventive screenings, and the care plan can cover complex comorbidities such as heart disease or diabetes.
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