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

Dr. Joseph Mermelstein, MD

Individual provider Internal Medicine Physician · NPI 1689963662

Dr. Joseph Mermelstein, MD is a Gastroenterology in Scarsdale, New York. Graduated from Icahn School of Medicine at Mount Sinai in 2011, 15 years ago. Practices with White Plains Physician Services PC, a 384-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
15
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
NY
In the registry since
2011
Specialties on file
2
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

550 Mamaroneck Ave Ste 302
Scarsdale, NY 10583
Phone: (914) 723-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 273034 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 273034 (NY)

Record details

NPI number1689963662
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2011
Last updated in NPPESMay 24, 2021
Certification dateMay 10, 2021

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2011 (15 years in practice)
Group practice White Plains Physician Services Pc — 384 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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