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

Ralli and Grewal APC

Organization Endocrinology, Diabetes & Metabolism Physician · NPI 1659727865

Ralli and Grewal APC is an Endocrinology, Diabetes & Metabolism Physician in Newport Beach, California. Registered with an NPI since 2016.

In the registry since
2016
What do these letters mean?
APC — A professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

520 Superior Ave Ste 390
Newport Beach, CA 92663-3637
Phone: (949) 548-3177
Fax: (949) 548-3412
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X

Record details

NPI number1659727865
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sonia Grewal — President · (949) 548-3177
NPI enumeratedMay 5, 2016
Last updated in NPPESMay 5, 2016
Mailing addressPo Box 52045, Irvine, CA 92619-2045

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