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

Dr. James Onorato, MD, PHD

Individual provider Nephrology Physician · NPI 1679504559

Dr. James Onorato, MD, PHD is a Nephrology in Clarkston, Washington. Graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1984, 42 years ago. Practices with Tri-State Memorial Hospital, a 34-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
42
Trained at
Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

1119 Highland Ave
Clarkston, WA 99403-2836
Phone: (509) 758-5511
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence K3367 (TX)
Nephrology Physician Taxonomy 207RN0300X · Licence K3367 (TX)

Record details

NPI number1679504559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedJuly 6, 2006
Last updated in NPPESAugust 12, 2024
Certification dateAugust 12, 2024

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolCLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduated 1984 (42 years in practice)
Group practice Tri-State Memorial Hospital — 34 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare