Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Michael Nmn Grassia, MD

Individual provider Nephrology Physician · NPI 1235128133

Dr. Michael Nmn Grassia, MD is a Nephrology in Norfolk, Virginia. Graduated from Eastern Virginia Medical School in 1997, 29 years ago. Practices with Nephrology Associates of Tidewater Ltd, a 24-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
29
Trained at
Eastern Virginia Medical School
Licensed in
VA
In the registry since
2005
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

6160 Kempsville Cir Ste 302A
Norfolk, VA 23502-3933
Phone: (757) 466-9288
Fax: (757) 457-3691
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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 0101232951 (VA)

Record details

NPI number1235128133
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 14, 2005
Last updated in NPPESOctober 25, 2007

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1997 (29 years in practice)
Group practice Nephrology Associates Of Tidewater Ltd — 24 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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