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29 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Tan, Obstetrician / Gynecologist (OBGYN) in Mason City, IA?
Dr. Thoo Tan, DO is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Mason City, IA with 1 additional practice location. He has been practicing for over 29 years and is board certified. Dr. Tan graduated from Baylor College of Medicine in Houston, Texas and completed his residency at St Elizabeth Hlth Ctr, Obstetrics And Gynecology. Dr. Tan is fluent in English, and is currently seeing new patients. Dr. Tan’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tan’s office.
Where did Dr. Tan go to medical school and complete their residency?
Residency: St Elizabeth Hlth Ctr, Obstetrics And Gynecology | St Elizabeth Health Center Program
Medical School: Des Moines University College of Osteopathic Medicine and Health Sciences | Baylor College of Medicine in Houston, Texas | Des Moines University College of Osteopathic Medicine
Is Dr. Tan board certified as an Obstetrician / Gynecologist (OBGYN)?
Yes, Dr. Thoo Tan, DO is board certified by the American Board of Obstetrics and Gynecology
What languages does Dr. Tan speak?
Dr. Tan and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Tan treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Tan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Tan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Other Abnormal Uterine and Vaginal Bleeding
- Vaginal Bleeding
- Unusual Uterine Bleeding
- Abnormal Vaginal Discharge
- Irregular Genital Bleeding
ICD-10 Codes:
- N938: Other specified abnormal uterine and vaginal bleeding
Also known as:
- Birth Control Implant Check-up
- Birth Control Shot Check-up
- IUD Insertion
- Birth Control
- Contraceptive implant follow-up
- Nexplanon monitoring
- Subdermal implant check
- Injectable contraceptive follow-up
- Depo-Provera monitoring
- Birth control injection check
- Intrauterine device placement
- Getting an IUD
- IUD procedure
ICD-10 Codes:
- Z3046: Encounter for surveillance of implantable subdermal contraceptive
- Z3042: Encounter for surveillance of injectable contraceptive
- Z30430: Encounter for insertion of intrauterine contraceptive device
Also known as:
- Other Prenatal Screenings
- Prenatal Care
- Additional pregnancy tests
- Special antenatal screenings
- Specific prenatal checks
ICD-10 Codes:
- Z3689: Encounter for other specified antenatal screening
Also known as:
- Postmenopausal Bleeding
- Menopause
- Vaginal Bleeding
- Bleeding After Menopause
- Vaginal Bleeding in Menopause
ICD-10 Codes:
- N950: Postmenopausal bleeding
Also known as:
- Vaginal Prolapse After Hysterectomy
- Cystocele
- Hysterectomy
- Pelvic Floor Disorder
- Vaginal Vault Prolapse
- Post-Hysterectomy Prolapse
- Dropped Vagina After Hysterectomy
- Fallen Bladder
- Bladder Prolapse
- Anterior Vaginal Wall Prolapse
ICD-10 Codes:
- N993: Prolapse of vaginal vault after hysterectomy
- N8110: Cystocele, unspecified
Also known as:
- Routine Gynecological Exam (Normal Findings)
- Women's Health Checkup
- Women's checkup, all clear
- Pelvic exam, normal results
- OB/GYN visit, no issues
ICD-10 Codes:
- Z01419: Encounter for gynecological examination (general) (routine) without abnormal findings
Also known as:
- Low Transverse C-section Scar in Pregnancy
- Prenatal Care
- Horizontal C-section Scar (Pregnancy)
- Low-lying C-section Scar
- Prior Cesarean Scar (Low Transverse)
ICD-10 Codes:
- O34211: Maternal care for low transverse scar from previous cesarean delivery
Also known as:
- Atypical Cells on Pap Test (ASC-US)
- Cervical Cancer Screening
- ASC-US Pap smear
- Uncertain abnormal cervical cells
- Mildly abnormal Pap test
ICD-10 Codes:
- R87610: Atypical squamous cells of undetermined significance on cytologic smear of cervix (ASC-US)
Also known as:
- Routine IUD Check-up
- Birth Control
- Regular IUD Check
- Intrauterine Device Routine Exam
- IUD Follow-up Visit
ICD-10 Codes:
- Z30431: Encounter for routine checking of intrauterine contraceptive device
Also known as:
- Negative Pregnancy Test Result
- Pregnancy Test
- No pregnancy detected
- Negative HCG test
- Not pregnant result
ICD-10 Codes:
- Z3202: Encounter for pregnancy test, result negative
Also known as:
- Third Trimester Prenatal Care
- Prenatal Care
- Late Pregnancy Check-ups
- Routine Third Trimester Care
- Maternity Care (Third Trimester)
ICD-10 Codes:
- Z3483: Encounter for supervision of other normal pregnancy, third trimester
Also known as:
- Low-Grade Abnormal Cells on Pap Test (LGSIL)
- Cervical Cancer Screening
- Cervix Disorder
- Abnormal Pap Smear
- LGSIL Pap Test
- Mild Cervical Dysplasia
- Low-Grade Squamous Intraepithelial Lesion
ICD-10 Codes:
- R87612: Low grade squamous intraepithelial lesion on cytologic smear of cervix (LGSIL)
Also known as:
- Other Vaginal Disorder
- Vaginal Disease
- Non-inflammatory Vaginal Conditions
- Specific Vaginal Problems
ICD-10 Codes:
- N898: Other specified noninflammatory disorders of vagina
Also known as:
- Uterine Fibroids
- Leiomyoma
- Fibromyoma
- Myoma
- Uterine growth
ICD-10 Codes:
- D259: Leiomyoma of uterus, unspecified
Also known as:
- Pregnancy Care for Older Mothers with Previous Births
- Health Problems in Pregnancy
- Advanced Maternal Age Multiple Pregnancies
- Elderly Multigravida Care
- Older Mother with Prior Births Pregnancy Monitoring
ICD-10 Codes:
- O09523: Supervision of elderly multigravida, third trimester
Also known as:
- Pelvic and Perineal Pain
- Pelvic Pain
- Perineum pain
- Pelvic floor pain
- Pain in groin area
ICD-10 Codes:
- R102: Pelvic and perineal pain
What procedures does Dr. Tan perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Tan performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Tan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Laparoscopic Hysterectomy
- Laparoscopic Vaginal Hysterectomy with Ovaries/Tubes Removed
- Laparoscopic Total Hysterectomy with Tube and/or Ovary Removal
- Hysterectomy
- Laparoscopy
- Minimally Invasive Hysterectomy
- Keyhole Hysterectomy
- Total Laparoscopic Hysterectomy
- Uterus Removal Surgery
- Laparoscopic Assisted Vaginal Hysterectomy (LAVH)
- Minimally Invasive Hysterectomy with Adnexectomy
- Total Laparoscopic Hysterectomy with Oophorectomy
- Keyhole Hysterectomy with Salpingo-Oophorectomy
- Minimally Invasive Total Hysterectomy
- Laparoscopic Uterus Removal with Salpingo-oophorectomy
- Total Hysterectomy (Laparoscopic)
CPT Codes:
- 58571: Laparoscopy, surgical, with total hysterectomy, for uterus 250 g or less; with removal of tube(s) and/or ovary(s)
- 58552: Laparoscopy, surgical, with vaginal hysterectomy, for uterus 250 g or less; with removal of tube(s) and/or ovary(s)
- 58573: Laparoscopy, surgical, with total hysterectomy, for uterus greater than 250 g; with removal of tube(s) and/or ovary(s)
Also known as:
- Colposcopy with Cervical Biopsy and Curettage
- Colposcopy
- Cervical Biopsy
- Endocervical Curettage
- Pap Smear Follow-up Procedure
CPT Codes:
- 57454: Colposcopy of the cervix including upper/adjacent vagina; with biopsy(s) of the cervix and endocervical curettage
Also known as:
- Hysteroscopy with Biopsy or Polyp Removal
- Hysteroscopy with Endometrial Ablation
- Biopsy
- Hysteroscopy
- Uterine Scope with Biopsy
- Hysteroscopic Polypectomy
- D&C with Hysteroscopy
- Uterine Lining Removal
- Endometrial Resection
- Thermoablation of Uterus
CPT Codes:
- 58558: Hysteroscopy, surgical; with sampling (biopsy) of endometrium and/or polypectomy, with or without D & C
- 58563: Hysteroscopy, surgical; with endometrial ablation (eg, endometrial resection, electrosurgical ablation, thermoablation)
Also known as:
- IUD Insertion
- Birth Control
- Intrauterine device placement
- IUD placement
- Birth control implant
CPT Codes:
- 58300: Insertion of intrauterine device (IUD)
Also known as:
- IUD Removal
- Birth Control
- Intrauterine device removal
- Take out IUD
- Remove birth control device
- IUD explant
CPT Codes:
- 58301: Removal of intrauterine device (IUD)
Also known as:
- Colposcopy with Cervical Biopsy
- Colposcopy
- LEEP Procedure
- Loop Electrosurgical Excision Procedure
CPT Codes:
- 57460: Colposcopy of the cervix including upper/adjacent vagina; with loop electrode biopsy(s) of the cervix
Also known as:
- Sling Surgery for Bladder Control
- Stress Incontinence Sling
- Urethral Sling Procedure
- Bladder Sling Surgery
CPT Codes:
- 57288: Sling operation for stress incontinence (eg, fascia or synthetic)
Also known as:
- Laparoscopic Ovarian and/or Fallopian Tube Removal
- Laparoscopic Oophorectomy
- Laparoscopic Salpingectomy
- Minimally Invasive Adnexal Removal
CPT Codes:
- 58661: Laparoscopy, surgical; with removal of adnexal structures (partial or total oophorectomy and/or salpingectomy)
Also known as:
- Uterine Lining Biopsy
- Biopsy
- Endometrial Biopsy
- Uterine Biopsy
- Cervical Biopsy
- Endocervical Sampling
CPT Codes:
- 58100: Endometrial sampling (biopsy) with or without endocervical sampling (biopsy), without cervical dilation, any method (separate procedure)
Also known as:
- Vaginal Wall Repair (Front and Back)
- Anteroposterior colporrhaphy
- Cystocele and rectocele repair
- Vaginal prolapse repair
CPT Codes:
- 57260: Combined anteroposterior colporrhaphy, including cystourethroscopy, when performed;
Also known as:
- Pessary Insertion
- Vaginal Pessary Placement
- Intravaginal Support Device Fitting
- Pelvic Organ Prolapse Device
CPT Codes:
- 57160: Fitting and insertion of pessary or other intravaginal support device
Also known as:
- Bladder Prolapse Repair (Anterior Colporrhaphy)
- Cystocele Repair
- Urethrocele Repair
- Vaginal Wall Repair for Prolapse
CPT Codes:
- 57240: Anterior colporrhaphy, repair of cystocele with or without repair of urethrocele, including cystourethroscopy, when performed
Also known as:
- Fetal Non-Stress Test
- Nonstress Test
- Nonstress Test (NST)
- Fetal Heart Rate Monitoring
- NST for Pregnancy
- Baby Heartbeat Test
CPT Codes:
- 59025: Fetal non-stress test
Also known as:
- Prenatal Care Visits (4-6)
- Prenatal Care
- Antepartum visits
- Pregnancy check-ups
- Maternity care appointments
CPT Codes:
- 59425: Antepartum care only; 4-6 visits
Also known as:
- Comprehensive Prenatal Care (7+ Visits)
- Prenatal Care
- Antepartum Care
- Pregnancy Check-ups
- Maternity Care
- Obstetric Visits
CPT Codes:
- 59426: Antepartum care only; 7 or more visits
Also known as:
- Surgical Treatment for Missed Miscarriage (First Trimester)
- D&C for Missed Abortion
- Surgical Miscarriage Management
- First Trimester Missed Abortion Treatment
CPT Codes:
- 59820: Treatment of missed abortion, completed surgically; first trimester
Also known as:
- Drug Delivery Implant Insertion
- Medication Implant Placement
- Bioresorbable Drug Implant
- Contraceptive Implant Insertion
CPT Codes:
- 11981: Insertion, drug-delivery implant (ie, bioresorbable, biodegradable, non-biodegradable)
Also known as:
- Removal of Non-Biodegradable Drug Implant
- Drug Delivery Device Removal
- Permanent Drug Implant Explant
- Non-Dissolving Implant Removal
CPT Codes:
- 11982: Removal, non-biodegradable drug delivery implant
Also known as:
- Removal and Reinsertion of Drug Delivery Implant
- Drug Implant Exchange
- Non-Biodegradable Implant Replacement
- Medication Device Change
CPT Codes:
- 11983: Removal with reinsertion, non-biodegradable drug delivery implant
Does Dr. Tan accept my insurance?
Dr. Tan accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tan accept in Mason City, IA?
Dr. Tan in Mason City, IA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene
Crown Cork and Seal Company
Elevance Health Inc. (formerly Anthem)
Medicaid
Medicare
MedImpact
State of Tennessee
UnitedHealthcare
Wellmark BlueCross BlueShield
View All Insurances
Where is Dr. Tan's office located?
What is Dr. Tan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tan's National Provider Identifier (NPI) number is 1104857127.
What common questions do patients ask about Dr. Tan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tan
What is Dr. Thoo Tan's specialty?
Dr. Tan is a Obstetrician / Gynecologist (OBGYN) near Mason City, IA. An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life. Contact Dr. Tan to book an appointment today.
Is this Dr. Thoo Tan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Tan is affiliated with MercyOne North Iowa Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Obstetrician / Gynecologist (OBGYN)?
Explore Obstetrician / Gynecologist (OBGYN) with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Thoo Tan accepting new patients in Mason City, IA?
Yes, Dr. Thoo Tan is accepting new patients at this time.
Does Dr. Thoo Tan offer online booking?
Please contact Dr. Tan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Thoo Tan?
Please contact Dr. Tan's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Thoo Tan have?
Dr. Thoo Tan is certified by the American Board of Obstetrics and Gynecology.
Other Obstetrician / Gynecologist (OBGYN) Near Mason City, IA
MF
Obstetrician / Gynecologist (OBGYN)
Accepting patientsDr. Michael Faust, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Mason City, IA. He has been practicing for over 37 years and is board certified.
Mason City, IA
RV
Obstetrician / Gynecologist (OBGYN)
Accepting patientsDr. Roberto Velez-Rosado, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Mason City, IA. He has been practicing for over 29 years.
Mason City, IA
CD
Obstetrician / Gynecologist (OBGYN)
Accepting patientsDr. Charles Debrah, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Mason City, IA with 2 additional practice locations. He has been practicing for over 34 years and is board certified.
Mason City, IA