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Dr. Ioannis Karakalpakis, MD

Hospitalist Physician in Wailuku, HI · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033418264

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Registry record

Entity type Individual (Type 1)
Name Dr. Ioannis Karakalpakis
Credential MD
Sex Male
Practice address 221 Mahalani St, Wailuku, HI, 96793
Phone (808) 442-5503
Fax (808) 442-5512
Enumeration date Mar 28, 2011
Last updated in NPPES Mar 29, 2019

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License MD-19155 (HI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Ioannis Karakalpakis?
The National Provider Identifier (NPI) for Ioannis Karakalpakis is 1033418264, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ioannis Karakalpakis practice?
The practice location on file with NPPES is in Wailuku, HI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-29.