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

Dr. Mark T. Grattan, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1538258173

Dr. Mark T. Grattan, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Honolulu, Hawaii. Licensed in Hawaii. Registered with an NPI since 2006.

Licensed in
HI
In the registry since
2006
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

888 S King St
Honolulu, HI 96813-3009
Phone: (808) 522-3068
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence MD-7469 (HI)

Record details

NPI number1538258173
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2006
Last updated in NPPESDecember 11, 2007
Mailing address820 Mililani St, Suite 702a, Honolulu, HI 96813-2924

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