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

John Sostarich, RDN

Individual provider Sports Dietetics Nutrition Registered Dietitian · NPI 1558280503

John Sostarich, RDN is a Sports Dietetics Nutrition Registered Dietitian in Bainbridge, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2026
What do these letters mean?
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

See every abbreviation used in this directory →

Practice location Address checks out

109 Polis Ln
Bainbridge, NY 13733-3122
Phone: (631) 327-1055
Show map & directions

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

Specialties & licences

Sports Dietetics Nutrition Registered Dietitian (primary) Taxonomy 133VN1501X (NY)

Record details

NPI number1558280503
Entity typeIndividual (Type 1)
GenderMale
Credentials RDN
Sole proprietorYes
NPI enumeratedJuly 14, 2026
Last updated in NPPESJuly 14, 2026
Certification dateJuly 14, 2026
Mailing address109 Polis Ln, Bainbridge, NY 13733-3122