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NEW - Dr. Gruenn’s Ojai office 

Starting January 2019, Dr. Gruenn is opening an additional office in Ojai. His schedule at his office in Los Angeles will continue as is.

530 W. Ojai Ave Suite 107​

Ojai Ca 93023

Tel: (805)633-9121

Email: office@drgruenn.com

Appointments: Please call the office you want to visit  to set up an appointment. 

Los Angeles area patients: Tel: (310)966-9194) and follow directions.

Ojai/Ventura/Santa Barbara patients: Tel: (805)633-9121 and follow directions. 

Telephone calls to Dr. Gruenn: Unless in an acute emergency you will not be able to talk to Dr Gruenn during regular office hours. Please leave your question with the office staff. Usually Dr Gruenn returns calls after office hours or the next morning. Complex medical issues require an office visit or at least a telephone consultation at regular fees.

Emergencies: In case of a serious medical emergency call 911 or go directly to the nearest emergency room. If you need to reach Dr Gruenn outside office hours, for an emergency that cannot wait to the next normal business day, make sure to call the office where you see him.

Dr Gruenn will be paged and will call you back. Should you need a prescription, please have your pharmacy number ready.

Hospital privileges: Dr Gruenn does not practice hospital medicine. Should you require hospital care, we will refer you. Dr. Gruenn encourage you to stay connected with a physician that has hospital privileges.

Billing: Fees must be paid when services are rendered. The Office staff will provide you with a superbill that has all the information your insurance carrier needs to reimburse you.

Lab results: Dr Gruenn will only call you with the results of blood tests or lab if they contain critical values and need immediate attention. Otherwise you will discuss lab results during your next visit with Dr Gruenn. Make sure to book a follow up appointment whenever you have blood drawn or any other lab procedure performed.

Changing or canceling appointments: Please let the staff know as early as possible if you need to change your doctor’s appointment. We will charge for missed or changed appointments, unless the staff is given two full business day's notice. (Business days are Monday to Friday). You will be responsible for 50% of the full service fee.

Renewal of medications: To refill your medications please have your pharmacy FAX us a refill request at :

Los Angeles area patients: Fax: (310)966-9196 

Ojai/Ventura/Santa Barbara patients: Fax: (805)633-9151

We cannot refill your medications unless you schedule a follow up visit with Dr Gruenn every 12 months. Renewal of medication should be done well in advance. Except in case of an acute emergency Dr Gruenn does not refill medication after office hours when your medical record is unavailable for review.

Supplement orders:

You may fax or email your supplement request - make sure you contact the correct office:

Los Angeles office: Fax: (310)966-9196, orders@drgruenn.com

Ojai office: Fax: (805)633-9151, office@drgruenn.com

 We welcome any suggestions how we can improve our service to you.