Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1285696203 Individual Practitioner Male Practitioner

Dr. Robert Joseph Wallerstein , MD

Pediatrics • Monrovia, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Robert Wallerstein, MD is a certified Pediatrics practicing in Monrovia, CA. With approximately 35 years of clinical experience since completing medical education in 1991, Dr. Wallerstein delivers high-quality medical care to the local community at 655 E HUNTINGTON DR.

Dr. Wallerstein is affiliated with University Of California San Francisco and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

655 E Huntington Dr

Monrovia, CA 91016

Telephone 6264717455
Associated Practice Facility / Clinic
🏢 Genzyme Corporation Facility NPI 1699739417

Medicare Profile & Education

Medical School

Other

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Monrovia, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
35 Yrs Matches City Avg
City Avg: 35.0 Yrs
State Avg: 22.5 Yrs
Regional Practice Density
1 Specialists

Practicing in Monrovia, CA (9612 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
81.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Wallerstein (35 Years) 35 Yrs
Monrovia Specialty Average (35.0 Years) 35.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
11 11 $1085.00 $202.08

Medical Specialties & State Licenses

Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License CA G88350

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Medical Genetics - Clinical Genetics (M.D.)

NUCC Taxonomy Code: 207SG0201X

State License CA G88350

A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
01704714 (NY)

Hospital & Practice Group Affiliations

University Of California San Francisco

2330 Post St, San Francisco, CA 941153465

Phone: 4154764029

Secondary Practice Locations

1441 Kapiolani Blvd, Suite 1800

Honolulu, HI 968144402

Phone: 8089733403

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

32 Associated Practitioners
Bethany Berg , MS

Genetic Counselor, MS

NPI 1013438449

Master of Science

Yvonne Cardona , MS

Genetic Counselor, MS

NPI 1063081404

Master of Science

Benjamin Newsum , MS

Genetic Counselor, MS

NPI 1073270799

Master of Science

Teresa Ruegg , MS, MPH

Genetic Counselor, MS

NPI 1093124067

Master of Science, Master of Public Health

Dr. Atieh Hajianpour , MD (IRAN), FACMG

Medical Genetics - Clinical Cytogenetics

NPI 1124210877

MD(IRAN), FACMG

Brittany Noble , MS

Genetic Counselor, MS

NPI 1144889577

Master of Science

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location May 16, 2019

Registered at 655 E HUNTINGTON DR, MONROVIA, CA 91016 (Tel: 6264717455)

📍
Updated Business Mailing Address May 16, 2019

Registered at 16557 MARCHMONT DR, LOS GATOS, CA 950325606 (Tel: 4083358449)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 16, 2019

Medical Genetics (License #G88350 in CA)

NPI Profile Active December 21, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location December 21, 2016

Registered at 1441 KAPIOLANI BLVD, SUITE 1800, HONOLULU, HI 968144402 (Tel: 8089733403)

📍
Updated Business Mailing Address December 21, 2016

Registered at 1441 KAPIOLANI BLVD, SUITE 1800, HONOLULU, HI 968144402 (Tel: 8089733403)

👤
Provider Name / Credentials Updated December 21, 2016

Recorded as ROBERT WALLERSTEIN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 21, 2016

Medical Genetics (License #MD-18671 in HI)

🟢
Initial NPI Registration & Enumeration April 05, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1285696203
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 05, 2006
Last Update: May 16, 2019
Sole Proprietor: No

Mailing Address

16557 Marchmont Dr

Los Gatos, CA 950325606

Phone: 4083358449

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.