Internal Medicine Doctors in Upper Montclair, NJ Accepting Medicare

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3 Internal Medicine doctors found. Showing 1 - 3
male doctor icon
Dr. Ernest Joseph Desalvo, M.D.
Internal Medicine - Nephrology
Medicare: Medicare Enrolled
Practice Location: 7 Norman Rd, Upper Montclair, NJ 07043
Phone: 973-746-3181    
male doctor icon
Dr. Ronald Keith Willenborg, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 543 Valley Rd Ste 4, Upper Montclair, NJ 07043
Phone: 973-746-6466    Fax: 973-746-0312
female doctor icon
Mrs. Dorothy J Margolskee, M.D.
Internal Medicine - Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 306 Upper Mountain Ave, Upper Montclair, NJ 07043
Phone: 973-744-5179    Fax: 973-744-6353
Popular Specializations in Upper Montclair, NJ:

Internal Medicine
Obstetrics & Gynecology
Psychiatry & Neurology
Nephrology
Pulmonary Disease


Internal Medicine: 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.


Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.