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

Individual provider Internal Medicine Physician · NPI 1780769703

Mary Ann Santos Pefanco, MD is a Geriatric Medicine in Hilo, Hawaii. Qualified in 1999, 27 years ago. Practices with King County Public Hospital District No 2, a 585-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
27
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

1178B Kinoole St
Hilo, HI 96720-4133
Phone: (808) 969-1427
Fax: (808) 961-4909
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD13875 (HI)

Record details

NPI number1780769703
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 26, 2006
Last updated in NPPESMarch 20, 2008

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice King County Public Hospital District No 2 — 585 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Hilo