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

Robert Mastroianni MD Inc

Organization Family Medicine Physician · NPI 1033240478

Robert Mastroianni MD Inc is a Family Medicine Physician in Makawao, Hawaii. Registered with an NPI since 2007.

In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

81 Makawao Ave Ste 25
Makawao, HI 96768-8859
Phone: (808) 573-8900
Fax: (808) 572-3027
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X

Record details

NPI number1033240478
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Susan Mastroianni — Office Administration · (808) 573-8900
NPI enumeratedMarch 8, 2007
Last updated in NPPESAugust 22, 2020
Mailing address81 Makawao Ave., Ste 25, Makawao, HI 96768

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