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

Macy Martinson, MD

Individual provider Nephrology Physician · NPI 1881919348

Macy Martinson, MD is a Nephrology in Hilo, Hawaii. Graduated from West Virginia University School of Medicine in 2010, 16 years ago. Practices with Northwest Renal Clinic Inc, a 39-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Hawaii, Oregon and Washington.

Years since qualifying
16
Trained at
West Virginia University School of Medicine
Licensed in
HI, OR, WA
In the registry since
2010
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 →

Practice location Address checks out

633 Ponahawai St Ste 103
Hilo, HI 96720-7601
Phone: (808) 481-2300
Fax: (808) 481-2301
Show map & directions

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

Additional practice locations (1)

  • 1130 Nw 22nd Avenue, Ste 640, Portland, OR 97210-2900 — (503) 229-7976

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MD-23479 (HI)
Nephrology Physician Taxonomy 207RN0300X · Licence MD171945 (OR)
Nephrology Physician Taxonomy 207RN0300X · Licence MD60548636 (WA)

Record details

NPI number1881919348
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2010
Last updated in NPPESSeptember 25, 2025
Certification dateSeptember 25, 2025
Mailing addressPo Box 3068, Portland, OR 97208-3068

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolWEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Northwest Renal Clinic Inc — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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