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

Naoky C Tsai, MD

Individual provider Gastroenterology Physician · NPI 1245214618

Naoky C Tsai, MD is a Gastroenterology in Kailua, Hawaii. Qualified in 1974, 52 years ago. Practices with Castle Medical Center, a 77-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
52
Licensed in
HI
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

642 Ulukahiki St Ste 103
Kailua, HI 96734-4400
Phone: (808) 263-5174
Fax: (808) 266-3614
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 3796 (HI)
Hepatology Physician Taxonomy 207RI0008X · Licence 3796 (HI)

Record details

NPI number1245214618
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 30, 2005
Last updated in NPPESOctober 30, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1974 (52 years in practice)
Group practice Castle Medical Center — 77 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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