Dr. Lassa J. Frank, O.D. and Mt. Tam Optometric Center are proud to be one of the first offices in the region to be offering ChromaGen lenses.


Dr. Lassa J. Frank, O.D. and Mt. Tam Optometric Center are here to serve you...

Our San Anselmo optometrist provides friendly, professional ocular health and vision services for all of your eye care needs. Our comprehensive eye exam will check your binocular vision, determine your visual needs, and then provide you with an accurate prescription for your eyeglasses. We will also provide a thorough assessment of your overall eye health and screen for eye disease.

Dr. Lassa Frank, O.D., our eye doctor works closely with specialists in every branch of medicine to assure that your eye care is managed seamlessly between medical providers.

When completed, the optometrist will go over all of your vision and ocular health concerns, discuss with you your options, and help you set up a plan of action. Our Optical Boutique can then provide all of your frame and lens needs. We are conveniently located with private parking in San Anselmo, CA and serve the residents of Marin County, including Fairfax, San Rafael, and Corte Madera, CA.

Our site is full of content designed for patients. Through our site you can:


What's New

Our Location

  • Mt. Tam Optometric Center
    1604 Sir Francis Drake Boulevard
    San Anselmo CA 94960
    Phone: 415-453-8906
    Fax: 415-453-0156
    Emergency Contact:

    For medical emergencies call 415-453-8906 or 911.  If after business hours, follow the directions for an emergency and leave a message with your name, phone number, and a short message about the your problem when prompted. The Doctor on call will get back to you.

Insurance & Financing

We accept most medical and vision insurance plans. Visit our Insurance page or call us at 415-453-8906 to see if you qualify for insurance coverage for your eye examination or eyewear. In addition, you can apply for no interest financing for up to 24 month to use towards any of your eye care needs, including glasses, contacts, and LASIK through CareCredit!


"We purchased four pairs of glasses last summer and found your staff to be most professional and helpful. Thank you to everyone for such great service. Three cheers for the team at Mt. Tam Vision Center!"
Barbara & Richard B

"I've had issues with my contacts since I first got them in sixth grade. Dr. Frank really took his time to find the contacts that are right for me - and affordable! I'll be coming back to see Dr. Frank whenever I need updated glasses. Thanks!"
Heather F

"It's not very often that I'm really impressed. This place has the latest technology and they offer you water, coffee, tea, or even a latte!  Wow - the glasses guy was great - no pressure, just good advice about the options.  The Doctor spent more than 30 mins with me and picked up a small abnormality that no one else had caught before - we'll keep an "eye" on it."
William D

"Era la primera vez que iba hacer un examen de las ojos. Escogí al Dr. Frank me gusto, me trato muy bien no era lo que yo pensaba. Lo que también me gusto que hablan español que creo que es algo muy bueno pues habemos muchas personas que no hablamos Ingles.Todo el personal es muy profecional en lo que hacen. Gracias Mt. Tam Vision Center por todo."
Jose L