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

Robert Joseph Wallerstein, MD

Individual provider Clinical Genetics (M.D.) Physician · NPI 1285696203

Robert Joseph Wallerstein, MD is a Pediatric Medicine in Monrovia, California. Qualified in 1991, 35 years ago. Practices with University of California San Francisco, a 1,793-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Licensed in
CA
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.

See every abbreviation used in this directory →

Practice location Address checks out

655 E Huntington Dr
Monrovia, CA 91016
Phone: (626) 471-7455
Show map & directions

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

Additional practice locations (1)

  • 1441 Kapiolani Blvd, Honolulu, HI 96814-4402 — (808) 973-3403

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G88350 (CA)
Clinical Genetics (M.D.) Physician Taxonomy 207SG0201X · Licence G88350 (CA)

Record details

NPI number1285696203
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2006
Last updated in NPPESMay 16, 2019
Mailing address16557 Marchmont Dr, Los Gatos, CA 95032-5606

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount