Joanna W. Chen, MD
With over 30 years in internal medicine, Joanna W. Chen, MD is a long-established internist in Baldwin Park. A University of Arizona College of Medicine graduate since 1996, she brings 30+ years of experience. A physician who provides long-term, comprehensive care in the office and the hospital.
At a glance
- Prescribes opioids less than 42% of reporting doctors in California
- Uses generic medications more than 79% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 1626dNPPES updated 2021-11-22 · verify on CMS
Contact & Location
Practice Location
1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better1.62%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-3.5 pts)
Typical range among reporting doctors in California1.62% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better92.2%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+9.4 pts)
Better than 79% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Prescription Recipients
765
Patients prescribed
Prescriptions Written
5,492
Total claims
Total Medicare drug cost: $223k
Percentile rankings compared against 9,360 reporting peers in California.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
$22 received from industry
1 transaction reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Joanna W. Chen's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1996
University of Arizona College of Medicine
30 years in practice
Senior practitioner
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Education & Training
University of Arizona College of Medicine (Class of 1996)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 210065
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Joanna W. Chen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Joanna W. Chen for follow-ups, medication reviews, and ongoing care — no travel to Baldwin Park required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Joanna W. Chen
Dr. Chen is listed as active in the NPI registry with telehealth listed in Baldwin Park, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (626) 851-1011.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024. See Data Methodology.
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Contact Joanna W. Chen
Practice Location
1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806
Mailing Address
1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806
This is a provider directory. Contact the office directly to schedule appointments.
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