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

Individual provider Emergency Medicine Physician · NPI 1962745539

Benjamin S Grimmnitz, MD is an Emergency Medicine in Boston, Massachusetts. Graduated from Icahn School of Medicine at Mount Sinai in 2013, 13 years ago. Practices with Merrimack Valley Emergency Associates, Inc, a 16-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
13
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
MA
In the registry since
2013
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

1 Boston Medical Ctr Pl Dowling 1 S Rm 1322
Boston, MA 02118-2908
Phone: (617) 414-4929
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 256208 (MA)

Record details

NPI number1962745539
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 2, 2013
Last updated in NPPESJuly 18, 2016

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2013 (13 years in practice)
Group practice Merrimack Valley Emergency Associates, Inc. — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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