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

Kimberly Nicole Grelli, MD

Individual provider Pediatrics Physician · NPI 1255758512

Kimberly Nicole Grelli, MD is a Pediatrics Physician in Walnut Creek, California. Works from 3 locations. Licensed in California.

Licensed in
CA
In the registry since
2014
Specialties on file
2
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

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122
Phone: (925) 947-5350
Fax: (925) 947-5350
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 725 Welch Rd, Palo Alto, CA 94304-1601 — (650) 497-8000
  • Po Box 734, San Francisco, CA 94104-0734 — (415) 502-8231

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence A147133 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence A147133 (CA)

Record details

NPI number1255758512
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2014
Last updated in NPPESOctober 31, 2025
Certification dateOctober 31, 2025

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