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

Grant Nybakken, MD

Individual provider Clinical Pathology/Laboratory Medicine Physician · NPI 1104088400

Grant Nybakken, MD is a Pathology in South San Francisco, California. Graduated from Washington University School of Medicine in 2008, 18 years ago. Practices with Peninsula Pathologists Medical Group Inc, a 17-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
18
Trained at
Washington University School of Medicine
Licensed in
PA
In the registry since
2008
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

383 E Grand Ave Ste A
South San Francisco, CA 94080-6234
Phone: (650) 616-2951
Show map & directions

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

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence MT193042 (PA)

Record details

NPI number1104088400
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2008
Last updated in NPPESNovember 22, 2024
Certification dateNovember 22, 2024

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Peninsula Pathologists Medical Group Inc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare