In The News

CSI - Advanced Robotic Hair Transplant Center

CSI - Advanced Robotic Hair Transplant Center specializes in surgical and non-surgical hair restoration in men and women. Read more

In The News


Welcoming Nine Experienced Providers, learn more about the latest providers to join CSI. Read more

In The News

CSI - Castro Valley Relocation

California Skin Institute – Castro Valley has relocated to a new office space. Learn more

In The News

CSI - Carmel is Now Open

California Skin Institute (CSI) has announced its newest location in Carmel-by-the-Sea, CA. Read more

In The News

CSI Continues to Expand in Southern California

California Skin Institute (CSI) is pleased to announce the merger of its two Encinitas (San Diego) offices into a single location. Read more

The Institute


The largest Dermatology practice in California features the top team in the field Read more

Skin Cancer Treatment


An unparalleled collaboration between Dermatologists and Plastic Surgeons provides the highest quality of care. Read more



From rejuvenation to fat reduction, CSI has the most effective, cutting-edge technologies for your skin Read more

Understand Acne And How To Treat It

Acne affects as many as 85% of young adults aged 12-24, according to the American Academy of Dermatology. Acne is a medical condition that can [...] Read more

Explore Acne Scar Treatments at CSI

Acne scars and pigmentation can be a painful physical and emotional reminder of a stressful condition that we’d like to put behind us. For some [...] Read more

Don’t Get Burned This Summer With These Sun Protection Tips

Did you know that UV rays from the sun can damage your skin in as little as 15 minutes? However, that doesn’t mean you have [...] Read more

Mohs Surgery and Other Skin Cancer Treatments

Over the years, the expert surgeons at California Skin Institute have helped tens of thousands of patients beat skin cancer through Mohs surgery.* This is [...] Read more

Cool Technology

CoolSculpting® Treatment

CoolSculpting® is a specialized procedure with no down time, which can help you address pockets of fat that are difficult to target with exercise alone.* [...] Read more


California’s Largest Private Dermatology Practice

Schedule Contact

To Our Santa Rosa Patients

We sincerely hope that you and your families and friends are all safe. Please accept our deepest condolences for any loss you may have suffered in this devastating fire.

Fortunately, our staff was able to evacuate and their families are safe. We have personally toured the area and have seen that our building is still standing, but the office is currently closed.

If you would like to be seen immediately, we will accommodate you in the San Francisco – Pacific Heights office located at:

California Skin Institute – Pacific Heights
2100 Webster Street, Suite 318
San Francisco, CA 94115

To schedule an appointment, please call the San Francisco office at (415) 923-3066 or San Mateo office at (650) 348-1242 to make an appointment.

We will keep you updated when we have more information about the reopening date of the Santa Rosa office.

With warmest regards,
Dr. Erik Cabral and Dr. Roger Friedenthal

53 Providers Serving California

State-of-the art medical and cosmetic dermatology and plastic surgery, with 26 convenient California locations.

Our History

California Skin Institute (CSI) started as the solo dermatologic surgery practice of Greg S. Morganroth, MD in Mountain View, California. Since 2007 CSI has grown to become the largest private practice dermatology group in California, completing over 40 mergers with outstanding dermatology and cosmetic surgery practices. With an unwavering commitment to excellence in medical, surgical, and cosmetic dermatology and plastic surgery, the group offers one of the most state-of-the-art and comprehensive skin-based service lines in the United States. This service line includes over 65 laser, ultrasound, microwave, light based, radiofrequency, and radiation technologies, innovative local anesthesia cosmetic and reconstructive surgery techniques, a varicose vein treatment center, a full service dermatopathology laboratory, AAAHC Medicare-approved surgery centers, and over 53 providers that include board certified dermatologists, cosmetic dermatologists, laser surgeons, Mohs skin cancer surgeons, reconstructive surgeons, pathologists, plastic surgeons, radiation oncologists and experienced nurse practitioners and physician assistants.

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Treatments Spotlight

miraDry ®

miraDry is an FDA-approved, noninvasive treatment for excessive underarm sweating. It is a quick, in-office procedure, free of toxins and harsh chemicals, with minimal to no downtime following the procedure.

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Botox ® Injections

Botox is FDA-approved and can be used to rejuvenate skin without invasive surgery. Botox improves facial and forehead wrinkles.

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NEW INJECTABLE! FDA approved injectable for improvement in the appearance of moderate to severe convexity or fullness associated with submental fat in adults - also known as the double chin or chin fat.

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CoolSculpting® is a specialized, non-surgical, pain free, noninvasive procedure with no down time, which can help you get rid of pockets of fat that are difficult to target with exercise. CoolSculpting cools the targeted fat tissue to break down the fat cells for easy removal without damage to surrounding skin and muscle.

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Vanquish is a breakthrough in noninvasive fat-removal, that lasts. The Vanquish fat reduction device uses radio-frequency waves to destroy fat cells.

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Restylane® Silk

California Skin Institute is excited to be one of the exclusive providers of Restylane® Silk, the first and only FDA-approved filler designed specifically for the treatment of lips and the lines around them. Restylane Silk’s unique, refined formulation is designed for precise lip shaping and for smoothing the lines around your mouth to create a natural look.

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Restylane Lyft

NEW INJECTABLE! The FDA has approved Restylane Lyft with Lidocaine to Correct Age Related Volume Loss in the Cheek Area. California Skin Institute will be one of the first practices in the nation to offer this exciting new product.

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If you’re close to your ideal shape, but need a little help getting there, Liposonix may be for you. Liposonix treatments use non-invasive, high-intensity focused ultrasound to permanently get rid of targeted fat around your waistline (abdomen and love handles) without surgery. The average waistline reduction after just a single one-hour treatment is about 1 inch (2.5 cm) – which typically means one dress or pant size.

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PinPointe FootLaser®

The PinPointe FootLaser kills the fungus that lives in and under the toenail or fingernail. The laser light passes through the toenail without causing damage to the nail or the surrounding skin.

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SmartLipo® TPX

The Smartlipo® TPX system is the most advanced laser-assisted lipolysis available today, and is a welcome addition to California Skin Institute's 17 year history of offering tumescent (local anesthesia) liposuction. This unique technology is minimally invasive, and provides the optimal blend of three laser wavelenths to disrupt fat cells at the source, and can permanently remove excess fat in a single treatment.

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Consummate professional, absolutely exceptional in all areas of his work from complex MOHs laser procedures to cosmetic applications. Not the go-to guy if you need a psychiatric therapist more than a surgeon/doctor. There are lots of the former out there and only one Dr. Morganroth. If you want superior, world-recognized dermatological work, he’s the doc.*

* Individual results may vary and are not guaranteed.