About Dr. Glenn Koby, MD
Dr. Glenn Koby, M.D., is a board-certified California dermatologist providing care to patients in the Petaluma area at North Bay Dermatology Associates.
Professional Affiliations
• Petaluma Valley Hospital
Professional Affiliations
• Petaluma Valley Hospital
Patient Education Resources
How do I find out if I have skin cancer?
The best way to find out if you have skin cancer is to have a skin examination performed by a healthcare professional such as a dermatologist. They will visually inspect your skin for any suspicious m...
The best way to find out if you have skin cancer is to have a skin examination performed by a healthcare professional such as a dermatologist. They will visually inspect your skin for any suspicious m...
Rosacea Medication Savings
Click on the image to access medication savings In most cases, this form must be submitted along with proof of having purchased the medication from the pharmacy. Offers may be time-limit...
Click on the image to access medication savings In most cases, this form must be submitted along with proof of having purchased the medication from the pharmacy. Offers may be time-limit...
What are the best sunscreens?
The best sunscreens are those that provide broad-spectrum protection, which means they protect against both ultraviolet A (UVA) and ultraviolet B (UVB) rays. They should also have an SPF (sun protecti...
The best sunscreens are those that provide broad-spectrum protection, which means they protect against both ultraviolet A (UVA) and ultraviolet B (UVB) rays. They should also have an SPF (sun protecti...
What is the treatment for psoriasis on the scalp?
Treatment for psoriasis on the scalp typically involves a combination of topical and systemic therapies.Topical treatments include:Shampoos containing salicylic acid, coal tar, or sulfur, which can he...
Treatment for psoriasis on the scalp typically involves a combination of topical and systemic therapies.Topical treatments include:Shampoos containing salicylic acid, coal tar, or sulfur, which can he...
What is the treatment for rosacea affecting my eyes?
Ocular rosacea is a subtype of rosacea that affects the eyes, and it can cause symptoms such as redness, itching, burning, and a gritty sensation in the eyes. Treatment for ocular rosacea typically in...
Ocular rosacea is a subtype of rosacea that affects the eyes, and it can cause symptoms such as redness, itching, burning, and a gritty sensation in the eyes. Treatment for ocular rosacea typically in...
Education & Training
Dr. Koby graduated from the University of Indiana medical school in 1968. He did his residency at William N Wishard Memorial Hospital in Indiana. He also did his residency at the Letterman Army Medical Center in San Francisco before eventually ending up at North Bay Dermatology and Associates.