Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Michael Anthony Grasso, MD

Individual provider Nephrology Physician · NPI 1821063785

Michael Anthony Grasso, MD practises Nephrology in West Orange, New Jersey. Graduated from University of Maryland School of Medicine in 1970, 56 years ago. Practices with The Nephrology Group PA, a 6-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
56
Trained at
University of Maryland School of Medicine
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

111 Northfield Ave Ste 311
West Orange, NJ 07052-4703 Not confirmed with CMS for 14 years — call before visiting
Phone: (973) 325-2103
Fax: (973) 325-2254
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 25MA02860400 (NJ)

Record details

NPI number1821063785
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 22, 2006
Last updated in NPPESMarch 7, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1970 (56 years in practice)
Group practice The Nephrology Group Pa — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients207
Services billed 1,390 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The Nephrology Group PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in West Orange