Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sandra A Loo

Individual provider Internal Medicine Physician · NPI 1851453948

Sandra A Loo is a Hospitalist in Honolulu, Hawaii. Graduated from University of Hawaii John A. Burns School of Medicine in 2000, 26 years ago. Practices with Queens University Medical Group, a 623-clinician group and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
26
Trained at
University of Hawaii John A. Burns School of Medicine
Licensed in
ID
In the registry since
2006
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Practice location Address checks out

1301 Punchbowl St
Honolulu, HI 96813-2402 Not confirmed with CMS for 19 years — call before visiting
Phone: (808) 538-9011
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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 MD12870 (ID)

Record details

NPI number1851453948
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 14, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Queens University Medical Group — 623 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients56
Services billed 194 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Queens University Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 623 clinicians in the practice; 12 are shown here.

Other providers in Honolulu