Dr. Irene S Tan, MD

Obstetrics & Gynecology     -  California,  Simi Valley


Dr. Irene S Tan, MD works in Simi Valley, California is a specialist in Obstetrics & Gynecology and graduated Ross University, School Of Medicine in 2004. Dr. Tan is affiliated with Los Robles Hospital and Medical Center and practicing for 14 years

 Experience and Qualifications


  • Obstetrics & Gynecology


  • Breech Position
  • Brief Psychotic Disorder
  • Broken Hand
  • Broken Nose
  • Cardiomyopathy, Alcoholic
  • Dobutamine Stress Echocardiography
  • Food Allergy - Carp
  • Food Allergy - Castor Bean
  • Food Allergy - Garlic
  • Herbal Agent Adverse Reaction - Polygonum Multiflorum
  • Homosexual Issues
  • Hypnosis (Medical Hypnotherapy)
  • Inflammatory Bowel Disease
  • Intracranial Aneurysms - Multiple Congenital Anomaly
  • Joint Implant
  • Joint Replacement, Robotic-Assisted
  • Keratoconus Treatment With Contact Lenses
  • Laryngopharyngeal Reflux
  • Microscopic Polyangiitis
  • Neurofibromatosis, Type 2
  • Ophthalmitis
  • Peripheral Arterial Aneurysm and Dissection
  • Primary Congenital Glaucoma
  • Ragweed Allergy
  • Rapeseed Oil Allergy
  • Regenerative Medicine
  • Rheumatoid Arthritis-Related Fibromyalgia
  • Runny Nose
  • Rupture of Ulnar Collateral Ligament of Thumb
  • Sees Haloes Around Lights
  • Simple Fractures
  • Small Bowel Resection
  • Spleenorenal Shunt Procedure
  • Splenectomy
  • Spondylosis Cervical Without Myelopathy
  • Stenting, Intracranial Vessels
  • Tourette's Syndrome
  • Transitional Cell Cancer
  • Watering Eyes
  • Yellow Nails


  • Atrophic Vaginitis
  • Breech Position
  • C-Section
  • Carcinoma in Situ
  • Cervical Cancer
  • Cervical Polyps
  • Cervicitis
  • Colpopexy
  • Colporrhaphy
  • Colposcopy
  • Contraceptive Management
  • Destruction or Excision of Lesion of Cervix (incl. LEEP)
  • Dilation and Curettage
  • Ectopic Pregnancy
  • Encounters for High-Risk Pregnancies
  • Encounters for Normal Pregnancies
  • Endocervical Curettage
  • Endometrial Ablation
  • Endometriosis
  • Gestational Diabetes
  • Gynecologic Cancer Screening
  • Hematologic Abnormalities Associated With Pregnancy
  • Hemorrhoids
  • HPV (Human Papillomavirus)
  • Hyperlipidemia
  • Hypertension
  • Hypertension Complicating Pregnancy, Childbirth and Postpartum
  • Hysterectomy - Laparoscopic
  • Hysterectomy - Open
  • Hysteroscopy
  • Incontinence Sling Procedure
  • Intrauterine Growth Restriction
  • Mastodynia
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Miscarriages
  • Myomectomy - Open and-or Laparoscopic
  • Noninflammatory Cervical Disorders
  • Osteopenia
  • Osteoporosis
  • Ovarian Cysts
  • Pap Smear Abnormalities
  • Perimenopause
  • Placenta Previa
  • Polycystic Ovarian Syndrome
  • Preeclampsia
  • Pregestational Diabetes Mellitus
  • Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, Salpingo-Oophorectomy, Resection of Peritoneal Malignancy)
  • Sexual Dysfunction
  • Sexually Transmitted Diseases (STDs)
  • Symptomatic Menopause
  • Uterine Cancer
  • Uterine Fibroids
  • Uterine Prolapse
  • Vaginal and Pelvic Prolapse
  • Vaginal Birth After Cesarean (VBAC)
  • Vaginal Delivery and VBAC
  • Vaginitis and-or Vaginosis
  • Yeast Infections

 Years Since Graduation

  • 14

 State License

  • California

 Background Check

Informations for Dr. Irene S Tan, MD are not present.

 Education & Training

Medical School

Ross University, School Of Medicine

Roseau, Dominica
Graduated: 2004


Awards for Dr. Irene S Tan, MD are not present.

 Dr. Tan Ratings

(Based on: 1 review)
Likely to Recommend:
Knowledge and Skill:
Shared Decision Making and Communication:

 Dr. Tan Reviews


My wife experienced heavy bleeding on a friday during the first trimester. We went in immediately to see Dr. Tan. She was not cordial towards us. We waited 20 minutes to see her. She walked into the room, asked us what was going on, put on a pair of gloves and gave us an ultrasound. She told us that unfortunately we were having a miscarriage and that she recomended we schedule a DNC three days later on the coming Monday. We told her that we wanted to wait and see if the fetus would pass on it's own over the weekend (avoiding any non-essential procedures) and that if it did not pass we would call her Monday morning to schedule the DNC for Tuesday. She said in a pretentious manner that it was our choice to wait, but in her professional opinion we should get it done on Monday. She then told us that her job can be very difficult and that we were the second miscarriage she had seen on that day and it was only 10:00 in the morning. She then walked out of the room and my wife and I could not believe that on the worst day of our lives, Dr. Tan was telling us how difficult her job was. She saw us for a total of 5 minutes. On Monday morning my wife called Dr. Tan multiple times without a call back. She continued calling every hour or so throughout the day. Finally we received a call from a nurse at 5pm apologizing for Dr. Tan having not called us back. She said to call again in the morning the next day which was Tuesday. We immediately called my wife's OBGYN at West Hills hospital and scheduled a Tuesday morning appointment for a second opinion. Our doctor at West Hills was shocked that Dr. Tan would try to schedule a DNC so quickly. Our doctor at West Hills told us that there was a chance that maybe our bleeding was a common case of pregnancy bleeding and that we needed to wait 2 to 3 weeks to make sure we were indeed miscarrying. She told us that every now and then she'll get a patient that you would think was having a miscarriage due to the symptoms they are experiencing and it turns out 2 or 3 weeks later you'll find the baby has a heartbeat. Sure enough, two weeks later our HCG testing revealed that her levels had increased, consistent with a healthy pregnancy. We still did not see a heartbeat on the ultrasound so our doctor at West Hills told us to come back once again in another week. We returned the third week to the surprise of a healthy heartbeat in the wound. 
Had Dr. Tan returned our phone call as she promised on that Monday we would have scheduled a DNC for Tuesday and she would have killed our baby. We have a $35 dollar bill from Dr. Tan's office that we will not pay by principle. Dr. Tan's office will not even waive the bill for us. A month later I told the story to a friend who revealed that a family member of hers had the same misdiagnosis by Dr. Tan within weeks of our experience. She almost killed 2 healthy babies in the same month. How many other babies has she killed in her rush to perform immediate DNC's without properly test for increased HCG blood levels? We also talked to Dr. Murphy who is the head of that practice at a hospital function weeks later and he expressed his disbelief of her behavior. Consult Dr. Tan at your own risk. She inflicted severe emotional pain into our lives for the 3 weeks we waited to find out our baby was alive and healthy.

16 May 2011, 06:20
Likely to Recommend:
Knowledge and Skill:
Shared Decision Making and Communication:
 Add Review

 Office Locations

Primary location

 Simi OB/GYN Medical Group

2876 Sycamore Drive Suite 200
California (CA)
Simi Valley,

  (805) 527-8055

Accepting New Patients

  • Yes
* Please verify this information when scheduling an appointment.

 Map & Directions

Simi OB/GYN Medical Group, 2876 Sycamore Drive Suite 200, Simi Valley, California (CA), 93065

 Insurances Accepted (check insurance plans)

  • Access Plus Savenet
  • Advantage Preferred DirectAccess Plus PPO
  • Aetna
  • Aetna HMO
  • Anthem Blue Cross
  • Blue & Gold HMO
  • Blue Card PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Blue Cross Blue Shield of California PPO
  • Blue Shield of California
  • CaliforniaCare HMO
  • Choice Plus POS
  • Choice Plus POS II
  • Cigna
  • Cigna HMO
  • Cigna PPO
  • Employer Group HMO
  • Enhanced Exclusive for Small Business HMO
  • First Health (Coventry Health Care)
  • First Health (Coventry Health Care) PPO
  • GEHA
  • Government Employees Health Association (GEHA)
  • Great West Healthcare-Cigna PPO
  • Health Net
  • Kaiser PHCS Network PPO
  • Local Access Plus HMO
  • Medicaid
  • Medicare
  • Medicare Advantage PFFS
  • Medicare MCR
  • Meritain Health
  • MultiPlan
  • MultiPlan PPO
  • Navigate HMO
  • Navigate POS
  • Open Access Plus
  • Options PPO
  • PacifiCare HMO
  • PHCS Network PPO
  • Power Select HMO
  • Principal Life
  • Select Plus HMO
  • Select PPO
  • Tricare
  • United Healthcare
  • UnitedHealthCare
  • WholeCare Network HMO

* Please verify this information when scheduling an appointment.

 Affiliated Hospitals

Los Robles Hospital and Medical Center photo

Los Robles Hospital and Medical Center

215 West Janss Road California CA, Thousand Oaks, 91360

Los Robles Hospital and Medical Center is a hospital located in Thousand Oaks, CA. Procedures/Diagnosis costs are at the state average in 15 of 15 procedures. Length of Stay is at the state average in 12 of 15 procedures.

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