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

Dr. Marjorie J. Isdith, DO

Individual provider Family Medicine Physician · NPI 1205831435

Dr. Marjorie J. Isdith, DO is a Family Medicine Physician in Massapequa, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

20 Hicksville Rd
Massapequa, NY 11758
Phone: (516) 795-5700
Fax: (516) 795-5701
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 197492 (NY)

Record details

NPI number1205831435
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 15, 2005
Last updated in NPPESApril 24, 2008
Mailing address20 Hicksville Road, Massapequa, NY 11758

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