Specialists in Gastroenterology - Contact Us

Specialists in Gastroenterology
11525 Olde Cabin Road
St. Louis, MO 63141



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From Interstate I-270
• Take Olive Blvd. East 0.5 miles to Old Ballas Rd.
• Turn Right on Old Ballas Rd. and drive 0.3 miles to a 3-way stop sign
• Turn Left onto Olde Cabin Rd. and turn Left again into the first driveway

From Ballas Rd. (Also called North New Ballas Rd.)
• Turn East on Old Ballas Rd. and drive 0.3 miles to a 3-way stop sign
• Drive straight onto Olde Cabin Rd. and turn Left into the first driveway

Please Note:
• Old Ballas is an “L” shaped street.
• When driving on Olive Blvd., Old Ballas is one streetlight
east of New Ballas N.
• When driving on New Ballas N., Old Ballas is one streetlight south of Olive Blvd

Office hours:
Monday through Friday 9:00 AM to 4:45 PM

Contact us:
Patients:

  • 314-997-0554

Fax:

  • 314-997-5086

Physicians:

  • Dr. Thyssen:  To contact Dr. Thyssen, please call the office (314-997-0554) during regular business hours or the exchange(314-388-6578) after hours. Dr. Thyssen does not reply to e-mail inquiries.
     
  • Dr. Todorczuk:  To contact Dr. Todorczuk, please call the office (314-997-0554) during regular business hours or the exchange(314-388-6578) after hours. Dr. Todorczuk does not reply to e-mail inquiries.
     
  • Dr. Weinstock: 
    Email:  LW@gidoctor.net
     
  • Dr. Fern:  To contact Dr. Fern, please call the office (314-997-0554) during regular business hours or the exchange(314-388-6578) after hours. Dr. Fern does not reply to e-mail inquiries.

Specialists in Gastroenterology participates in many insurance plans. Please call us to find out if your plan is one of the many we participate in.

Office Policies:

Appointments
New patients should fill out patient forms ahead of time if possible and please bring a copy of their insurance card and drivers license for the visit. Whenever possible, old records should be faxed to our office (314) 997-5086.

Cancellations
If unable to keep you appointment call 314-997-0554, please give 24 hour notice or you will be charged.

Copayments
Insurance regulations require payment of these encounter fees at the time of service.

Emergencies
If you have a true medical emergency you should call 911. If the problem is urgent, a telephone call to the physician with that statement is best so that the appropriate triage can be performed.

Insurance and Referrals
Please obtain HMO referrals well in advance of the appointment.

We will file insurance claims for you for our services.

Prescription Refills
Please call or have the pharmacist call before 2:00 PM for routine refills.

Telephone Calls
Routine telephone calls should be made between 9:00 AM and 4:45 PM Monday through Friday. Emergency telephone calls after office hours should be directed to the exchange (314) 388-6578. True medical emergencies that can not wait should prompt a 911 call. Return telephone calls by physicians will be made throughout the course of the day – please tell us how long you will be at your telephone number and how urgent the problem is. We perform endoscopic procedures most mornings and return calls in between cases or at the end of the work day for elective calls.