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

Dr. Amy Haruko Matayoshi, MD

Individual provider Nephrology Physician · NPI 1417921982

Dr. Amy Haruko Matayoshi, MD is a Nephrology in Oceanside, California. Graduated from University of Hawaii John A. Burns School of Medicine in 1995, 31 years ago. Practices with Balboa Nephrology Medical Group Inc, a 79-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
31
Trained at
University of Hawaii John A. Burns School of Medicine
Licensed in
CA
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

3300 Vista Way Ste B
Oceanside, CA 92056-3752
Phone: (760) 967-9900
Fax: (760) 967-6769
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence A60790 (CA)

Record details

NPI number1417921982
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 14, 2006
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Balboa Nephrology Medical Group Inc — 79 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Oceanside