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

Dr. Darren Peter Mareiniss, MD

Individual provider Emergency Medicine Physician · NPI 1689813909

Dr. Darren Peter Mareiniss, MD is an Emergency Medicine in Baltimore, Maryland. Graduated from New York University School of Medicine in 1999, 27 years ago. Practices with Rwjbh Emergency Medicine Associates, LLC, a 807-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
27
Trained at
New York University School of Medicine
Licensed in
MD
In the registry since
2009
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

9000 Franklin Square Dr
Baltimore, MD 21237-3901
Phone: (972) 533-2486
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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 D0068258 (MD)

Record details

NPI number1689813909
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 10, 2009
Last updated in NPPESDecember 24, 2015

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Rwjbh Emergency Medicine Associates, Llc — 807 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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