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

Dr. Grant Masashi Hayashi, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1962405290

Dr. Grant Masashi Hayashi, MD is a Pathology in Reno, Nevada. Graduated from University of Hawaii John A. Burns School of Medicine in 1994, 32 years ago. Practices with Diagnostic Pathology Medical Group Inc, a 32-clinician group and accepts Medicare assignment. Licensed in California and Nevada.

Years since qualifying
32
Trained at
University of Hawaii John A. Burns School of Medicine
Licensed in
CA, NV
In the registry since
2005
Specialties on file
2
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

1350 Stardust St Ste D
Reno, NV 89503-4264
Phone: (775) 746-3400
Fax: (775) 746-3411
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 9368 (NV)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence A55802 (CA)

Record details

NPI number1962405290
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2005
Last updated in NPPESJuly 9, 2007

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Diagnostic Pathology Medical Group Inc — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Reno