General Practice

Our Team of Family Practice General Practitioners

Your general practitioner plays a vital role in your journey to proper health and serves as your first point of contact with healthcare services. This is why it is important to have a knowledgeable, experienced family doctor on your side that you can turn to when pursuing a diagnosis.


The Mayflower Medical Group has a dedicated, professional team of family doctors that are highly qualified and committed to adding value to the lives of their patients.

Meet the Team

You can learn more about our skilled doctors in the section below.

Michael Bang, M.D.

Location: Covina

Michael Bang, M.D. is a highly motivated physician that demonstrates excellence in all aspects of his service. He has practiced as a Family Practitioner for over 15 years. Dr. Bang earned his medical degree at University of Maryland Medical School and completed his training at University of Southern California. He offers physical examinations, cholesterol testing, wound care, immunizations, skin biopsies, fitness programs, stress reduction plans, ongoing evaluations and many other services. His interests are in family practice and urgent care.

Adelaide B. Willis, M.D.

Location: Covina

Adelaide Willis, M.D. is an extremely caring and dedicated physician. She has been practicing as Family Practice Physician for over 30 years. Dr. Willis earned her medical degree from Charles R. Drew/UCLA School of  Medicine. Dr. Willis completed her residency in Family Medicine and a fellowship with emphasis in Geriatrics at King/Drew Medical Center Los Angeles, CA.

Khaled Mawaheb, M.D.

Location: Covina

Khaled Mawaheb, M.D. is an experienced board-certified family practitioner that brings 25 years of clinical experience to Mayflower Medical Group. He is a member of a number of professional organizations, including American Academy of Family Physicians and American Board of Family Medicine.  Dr. Mawaheb is a graduate of Cairo University, and completed his residency at the University of California, Davis.  It is Dr. Mawaheb’s foremost goal to provide excellence in service for all of his patients.  He enjoys seeing patients from newborns to geriatric and is fluent in Arabic.

Jesus Arenas, M.D.

Location: Family Care in La Puente

Jesus Arenas, M.D. is a highly experienced and dedicated general practice physician that brings over 30 years of experience to Mayflower Medical Group. He is committed to providing exceptional care to his patients. Dr. Arenas earned his medical degree at Stanford University School of Medicine and completed his training at University of Southern California, LA County. Dr. Arenas does not just treat the condition; he strives to meet his patients’ needs with compassion and respect. He enjoys all aspects of family medicine and is fluent in Spanish.

About Mayflower Medical Group

The Mayflower Medical Group is staffed by a group of respected primary care doctors, nurse practitioners, assistants, internal medicine physicians, and other medical professionals committed to serving the people of West Covina, Anaheim, Covina, Duarte, La Puente, El Monte, and Rialto.


We have a multilingual, multicultural staff of medical specialists that are committed to providing high-quality care.


At our medical clinics and offices, we employ board-certified general practitioners and medical staff specially trained in the fields of:

  • Pediatrics
  • Gynecology
  • Family practice
  • Preventive care
  • General practice
  • Internal medicine


Learn More About Mayflower Medical

A Team of Family Medicine Specialists

The Mayflower family doctors have the skills and expertise to handle a wide range of primary care needs and help patients maintain overall health and improve their quality of life. Our general practitioners work around the clock to ensure that treatment is administered to the patients that need it and refer patients that need specialist medical care to the right doctor.


We specialize in treating various conditions including, but not limited to:

  • Back pain
  • Abdominal pain
  • Asthma
  • Allergies
  • Urinary Tract Infection (UTI)
  • Bronchitis
  • Headache
  • Osteoarthritis
  • Sore throat
  • Depression/anxiety
  • Psychiatric/social work services


Learn More About Our Medical Team

Our General Practice Offers the Following Services

Family Medicine

Mayflower's team of primary care doctors is dedicated to our core mission of providing quality, comprehensive care for patients of all ages. Our Family Medicine practice offers preventative, diagnostic, and therapeutic services for acute and chronic conditions in children and adults, as well as senior citizens.


We value healthy doctor-patient relationships, so we strive to provide complete, personalized care for every stage in their lives.

Internal Medicine

Mayflower's team of general practitioners is dedicated to providing high-quality health care and excellent internal medicine for adults. Our internal medicine physicians treat patients with multiple conditions, including common cold and chronic conditions like hypertension, diabetes, and lung disease.


Our internists also offer annual physical exams and offer advice on maintaining good health. They can also assist patients with chronic diseases. They will also assist patients in managing chronic diseases.

We Are the Mayflower Medical Group

At Mayflower, we take the needs of our patients very seriously, which is why we search long and hard for the finest doctors to form part of our team. Every doctor at our clinics has been handpicked to ensure you get the best possible treatment!


Book an Appointment

Contact Information
Processing, please wait...

Form Submission Error