Magan Medical Clinic, Inc.
telemedicine portal patient-portal


Magan Medical Clinic, Dermatology
420 W Rowland St, 2nd Floor
Covina, CA 91723

(626) 331-6411 Phone Ė General line
(626) 251-1500 Phone Ė Appointments (Open Mon-Fri, 7:30 am-5:30 pm)
(626) 251-1552 Fax


Dermatology Staff
Our wonderful dermatology staff. Board certified dermatologist
 Charles Chiang, M.D., F.A.A.D. is in the center


We provide quality dermatology care with compassion. Our specialty is medical dermatology, including:

  • Acne (both teenage and adult onset; we are enrolled in iPledge if Accutane is needed)
  • Eczema / atopic dermatitis (in both children and adults)
  • Psoriasis
  • Skin cancer / skin exams
  • Moles
  • Warts / molluscum
  • Rosacea
  • Pigmentation disorders
  • Alopecia areata (autoimmune non-scarring hair loss)
  • Scarring hair loss (autoinflammatory scarring hair loss)
  • Phototherapy (we have a nbUVB booth and Dr. Chiang completed a phototherapy fellowship at UCSF)
  • Hives
  • Itching (pruritus)
  • Nail disorders

  • Note: Cosmetic treatments are not performed in Dermatology but instead by Maganís Medical Aesthetics Laser Center.

If you have psoriasis or hair questions, Dr. Chiang possesses special expertise. He completed fellowships in both fields at University of California, San Francisco where he saw a wide spectrum of patients (including the most severe), performed clinical trials, and published research.

We take pleasure in serving our community including Covina, West Covina, San Dimas, Rancho Cucamonga, Baldwin Park, Azusa, Glendora, Upland, El Monte, Duarte, Monrovia, Arcadia, La Puente, and Diamond Bar.

Same day appointments often available. No referral is necessary if you have PPO insurance. We accept a wide range of insurance plans (unfortunately, we do not accept Medi-Cal as primary insurance, only as secondary insurance).

For appointments, please call (626) 331-6411. We look forward to serving you!


"Whatís New in..."

A monthly column by Dr. Chiang


March 2018

What's New in Eczema (atopic dermatitis)

What's new in Eczema

Eczema (atopic dermatitis) is quite common, affecting about 15% of the pediatric population and 10% of adults. Many pediatric patients are told that they will outgrow their sensitive skin. However, given that the prevalence for adults is only 1/3 less than that for the pediatric population, it likely often remains or recurs in the future. The drawback of the data is that the studies didnít follow the same patients so some patients may have developed adult eczema without having had a diagnosis as a child. However, even in those cases, oftentimes the adult had some sensitive skin as a child that wasnít severe enough to cause his parents to seek medical attention.

Awareness of having eczema / atopic dermatitis / sensitive skin is important as there is increasing data that it increases the risk of many autoimmune and autoinflammatory conditions. It has been linked toward inflammatory bowel disease, rheumatoid arthritis, alopecia areata, vitiligo, chronic urticaria, celiac disease, systemic lupus erythematosus, rheumatoid arthritis, among other conditions. In my practice, the most common link I see if between eczema and chronic hives (urticaria), of which the hives treatment is oftentimes long-term, without easy solutions, and frustrating for both the patient and the doctor. Theories for the many disease associations vary between autoreactive cells immune cells (ie, their immune system becomes inflamed by their own tissue, cells, and proteins) in patients with sensitive skin and possible predisposition toward environmental triggers due to the compromised skin barrier. In theory, improving control of the sensitive skin with gentle skin care and potential prescription medication (usually topical steorids) may decrease the risk of developing the associated conditions by decreasing the susceptibility to environmental triggers and avoiding inflaming the immune system.

If you have sensitive skin or other skin issues, please make an appointment for dermatology consultation at (626) 251-1500 to discuss your options.

Charles Chiang, MD, FAAD
Board Certified Dermatologist


- Andersen YM, et al. Autoimmune diseases in adults with atopic dermatitis. J Am Acad Dermatol 2017
- Magen E, et al. Association of alopecia areata with atopic dermatitis and chronic spontaneous urticaria. Allergy Asthma Proc 2018
- Anderson K, et al. 2017: Year in Review. The Dermatologist 2017
- Silverberg JI, et al. Adult eczema prevalence and associations with asthma and other health and demographic factors: a US population-based study. J Allergy Clinc Immunol 2013

For archives, click here.