About
Dr. Joanna W. Chen is an internal medicine doctor in Baldwin Park, California, board certified in Internal Medicine after training at The University of Arizona - College of Medicine Tucson. She practices at Kaiser Permanente Baldwin Park Medical Center and Southern California Permanente Medical Group, and is affiliated with the Geriatrics Medicine Department of Mount Sinai.
Dr. Chen treats a range of conditions including high blood pressure, diabetes type 2, COPD, and gastroesophageal reflux disease, along with preventive care and health screening. Her procedures include routine adult exams, flu vaccines, blood tests such as lipid panels and hemoglobin A1C levels, and cancer screenings including breast and colon cancer screening. She also performs adult vaccines and sexually transmitted infection testing. Dr. Chen speaks English and Cantonese and is currently accepting new patients.
Conditions Treated
- Breast cancer screening
- Diabetes type 2
- Hypotension
- Osteoarthritis of hand or wrist
- COPD (chronic obstructive pulmonary disease)
- Gastroesophageal reflux disease (GERD)
- Noninfectious gastroenteritis and colitis
Specialized Treatments
- Adult screening blood tests
- Blood count (CBC)
- Comprehensive metabolic panel (CMP)
- Electrolyte panel
- Glucose (blood sugar) level
- Kidney function tests
- Liver function tests
- Sexually transmitted infection (STI) test
- Adult vaccines
- Colon cancer screening
- Electrocardiogram (EKG)
- Flu vaccine
- Hemoglobin A1C level
- Lipid panel (cholesterol, triglycerides)
- Routine adult exam
- Thyroid tests
Insurances Accepted
Most common in California
Others
Insurance coverage can vary by location and plan. Confirm directly with the provider's office when you schedule.

