Magan Medical Clinic, Inc.


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

(626) 331-6411 Phone (Appointment Desk open M-F, 7:30 am – 5:30 pm)
(626) 251-1552 Fax


Dermatology Staff
Dermatology staff including Charles Chiang M.D., F.A.A.D. (center) &
Louis Bauman M.D., F.A.C.P (2nd from left)


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
  • Hair disorders (esp. thinning, shedding, and alopecia areata)
  • Phototherapy (we have a nbUVB booth)
  • Hives
  • Itching (pruritus)
  • Nail disorders
  • Topical therapy for photoaging and sun damage

If you have hair thinning or psoriasis, 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 for PPO insurance plans. Please call (626) 331-6411. We look forward to serving you!


"What’s New in..."

A monthly column by Dr. Chiang


October 2014

What’s New in Acne

Acne can be severe. In the March 2014 update, I discussed isotretinoin (commonly known as Accutane) and how it is considered the most effective medication for acne, especially cystic scarring acne. The reason it is not usually prescribed for mild to moderate acne is for potential side effects. The main side effect is potential birth defects if a baby is conceived while on the medication. Thus, for females, there is a need for either complete abstinence or two forms of birth control while on the medication. Other than this, I have viewed the potential side effect of inflammatory bowel disease (ie, ulcerative colitis) as the most worrisome side effect. However, a study published in 2014 by Rashtak et al. actually found the opposite, a decreased risk of inflammatory bowel disease in patients treated with isotretinoin. A separate study in 2013 by Alhusayen et al. did find a possible increased risk. However, it also found this risk in acne patients treated with topical creams/gels. Thus, Alhusayen’s study suggested an association between inflammatory bowel disease and acne itself. Overall, while I do view inflammatory bowel disease as a risk of Accutane, the practical increased risk is debatable.

Another interesting update is a trend toward longer treatment durations with isotretinoin. While the traditional treatment duration of approximately 6 months is highly effective and what I most often use, a 2013 study found that approximately doubling the duration of therapy increased the long term benefits of isotretinoin without any increase in adverse side effects other than skin rashes. Practically, I usually treat for 6 months and increase the duration further for patients that want the best chance at a long term remission or have cysts that still develop.

If you have acne, I look forward to seeing you to discuss your options, whether creams or pills. I am happy to find a regimen that suits your preferences. Please make an appointment for a dermatology consultation at (626) 331-6411.

Charles Chiang, MD, FAAD
Board Certified Dermatologist

- Rashtak S, et al. Isotretinoin Exposure and Risk of Inflammatory Bowel Disease. JAMA Dermatol 2014
- Alhusayen RO, et al. Isotretinoin use and the risk of inflammatory bowel disease: a population-based cohort study. J Invest Dermatol 2013
- Blasiak RC, et al. High-Dose Isotretinoin Treatment and the Rate of Retrial, Relapse, and Adverse Effects in Patients With Acne Vulgaris. JAMA Dermatol 2013
- Jesitus J. Expert shares tips on isotretinoin dosing at AAD 2014. Dermatology Times 2014

For archives, click here.