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

Gretchen A Sumortin

Individual provider Registered Dietitian · NPI 1518520691

Gretchen A Sumortin is a Registered Dietitian in Newport Beach, California. Practices as a sole proprietor. Registered with an NPI since 2019.

In the registry since
2019

Practice location Address checks out

4060 Campus Dr Ste 110
Newport Beach, CA 92660-2205
Phone: (562) 412-1767
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1518520691
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedApril 15, 2019
Last updated in NPPESApril 15, 2019
Mailing address6303 Seaborn Street, Address 2, Lakewood, CA 90713

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