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

Dr. Walter Brennan Igawa-Silva, MD

Individual provider Internal Medicine Physician · NPI 1437593688

Dr. Walter Brennan Igawa-Silva, MD practises Internal Medicine in Honolulu, Hawaii. Graduated from Stanford University School of Medicine in 2013, 13 years ago. Practices with Straub Clinic and Hospital, a 423-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Hawaii.

Years since qualifying
13
Trained at
Stanford University School of Medicine
Licensed in
CA, HI
In the registry since
2013
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

459 Patterson Rd
Honolulu, HI 96819
Phone: (808) 433-0360
Fax: (808) 433-0327
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (2)

  • 888 S King St, Honolulu, HI 96813-3097 — (808) 522-4000
  • 459 Patterson Rd, Honolulu, HI 96819 — (808) 433-0360

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD-18785 (HI)
Internal Medicine Physician Taxonomy 207R00000X · Licence A136674 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence MD-18785 (HI)

Record details

NPI number1437593688
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 18, 2013
Last updated in NPPESJuly 27, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Straub Clinic And Hospital — 423 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients128
Services billed 625 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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 Straub Clinic and Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 423 clinicians in the practice; 12 are shown here.

Other providers in Honolulu