Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Joelle Mast, PHD, MD

Individual provider Pediatrics Physician · NPI 1285856054

Dr. Joelle Mast, PHD, MD is a Pediatrics Physician in Sleepy Hollow, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

755 N Broadway
Sleepy Hollow, NY 10591-1075
Phone: (914) 358-0188
Fax: (914) 358-0189
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology with Special Qualifications in Child Neurology Physician (primary) Taxonomy 2084N0402X · Licence 157890 (NY)
Pediatrics Physician Taxonomy 208000000X · Licence 157890 (NY)
Pediatric Hospice and Palliative Medicine Physician Taxonomy 2080H0002X · Licence 157890 (NY)

Record details

NPI number1285856054
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , MD
Sole proprietorYes
NPI enumeratedMay 2, 2007
Last updated in NPPESSeptember 1, 2015

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