Tantam Medical Group Inc Pediatrics • 1 Provider 12555 Garden Grove Blvd Ste 504, Garden Grove CA, 92843 Make an Appointment (714) 537-5609 Tantam Medical Group Inc is a medical group practice located in Garden Grove, CA that specializes in Pediatrics. Providers Overview Location Reviews Providers Dr. Srivimol Tantamjarik, MD Pediatrics 0 Ratings.