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

Dr. Marsha Alexander, DO

Individual provider Child & Adolescent Psychiatry Physician · NPI 1508059056

Dr. Marsha Alexander, DO is a Child & Adolescent Psychiatry Physician in Commack, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
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

356 Veterans Memorial Hwy Ste Number 6
Commack, NY 11725-4343
Phone: (516) 779-3300
Show map & directions

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

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence 237852 (NY)

Record details

NPI number1508059056
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedAugust 18, 2007
Last updated in NPPESAugust 18, 2007
Mailing address356 Veterans Memorial Hwy, Suite Number 6, Commack, NY 11725-4343

Other providers in Commack