Office Hours

Monday, Tuesday, Thursday: 8:30 a.m. - 4:30 p.m.

Wednesday, Friday: 8:30 a.m. - 4:00 p.m.
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For a life threatening situation, call 911 or proceed to the nearest emergency room.

If you need to reach a physician after business hours for an urgent issue, you may contact the physician's exchange and speak with the physician on call.

Please note: Your personal physician may not be on call.

Exchange Numbers
Dr. Qayum: (314) 771-6080
Dr. Raghavan: (314) 553-5858
Dr. Yang: (314) 364-5413 


To facilitate medication refills, please have your pharmacy fax your refill request.

Fax: (314) 525-1202 or (314) 543-5947

We make every effort to expedite refill requests; however, please make refill requests with your pharmacy a few days prior to depletion.  

Please call in advance for routine office visits and schedule follow-up appointments before leaving the office.  

Our office makes every effort to remain on schedule with patient appointments; however, if the schedule is delayed, we will attempt to notify patients.  

As a courtesy to our patients and staff, please call our office as soon as possible if you will be late.  You may be asked to reschedule if you are more than 15 minutes late. 

Note: A $25.00 fee is assessed for “no-show” appointments.  If appointments are consistently missed you may be requested to seek care through another physician. 

Co-payments are due at time of check-in (no exceptions). If you do not have your co-payment, you will be required to reschedule your appointment. We accept debit cards, credit cards, cash and checks. Please present your insurance card at time of payment.

Fee: $25.00

Note: A $25.00 fee is collected prior to the return or distribution of paperwork. Please allow up to 10 business days for completion of forms.


To ensure our providers accept your insurance plan, please verify coverage by contacting your insurance provider’s customer service department. Customer service contact information is typically listed on the reverse side of your insurance card.

Prior to services rendered it is important to review insurance information with our staff; therefore, please have your insurance card available during each office visit.

We make every effort to contact you within a reasonable time regarding your test results. If you have not heard from our office within two weeks from the date of service, please contact our office.

In an effort to contact you and provide important services, please notify our office with any changes in name, address, phone number, pharmacy, or insurance information.

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Copyright 2015 by St. Anthony's Physician Organization