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

Phyllis Witzel Speiser, MD

Individual provider Pediatric Endocrinology Physician · NPI 1124198262

Phyllis Witzel Speiser, MD is a Pediatric Endocrinology Physician in New Hyde Park, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1991 Marcus Ave Ste M100
New Hyde Park, NY 11042-2057
Phone: (516) 472-3750
Fax: (516) 472-3751
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Endocrinology Physician (primary) Taxonomy 2080P0205X · Licence 143670 (NY)

Record details

NPI number1124198262
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 8, 2006
Last updated in NPPESJune 19, 2012

Other providers in New Hyde Park