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Clinic Type

Obstetrics and Gynecology (OB-GYN)

Address

Sienna OB/GYN Clinic, 7010 Highway 6, Missouri City, Texas 77459

Phone

713-442-6700 (Clinic)

Email

—

Opening Hours

Monday - Friday 8 am - 5 pm (Clinic Hours shown); Lab Hours Monday - Friday 7 am - 5 pm

Telehealth

Available (secure online patient portal and virtual care options referenced)

Emergency Care

24/7 Contact Center; call 713-442-0427 for scheduling emergencies

Services Offered

  • OB/GYN
  • Gynecology
  • Obstetrical care
  • Prenatal care
  • Papanicolaou tests
  • Mammograms
  • Bone densitometry
  • Well-woman exams
  • Breast examinations
  • Family planning
  • Menopause management
  • Ultrasound
  • Fetal monitoring
  • Non-stress tests

Team

  • Merlyn Thomas, MD — OB/GYN
  • Amir Nikahd, MD — Gynecology, OB/GYN
  • Natasha Abdullah, MD — OB/GYN

Insurance & Payment

  • KelseyCare Advantage
  • Medicare
  • Medicaid
  • Commercial insurance (as applicable)
  • Health Plans accepted by Kelsey-Seybold

Not specified in text; contact clinic for exact plans

Insurance, Credit/debit, Self-pay

Languages Spoken

  • English
  • Spanish (inferred from clinic page links)

FAQs

Schedule an OB/GYN Appointment in Sienna

Search and schedule your OB/GYN Appointment at a location close to you. Call 713-442-0427 and use MyKelseyOnline for scheduling.

What are clinic hours?

Clinic Hours: Monday - Friday 8 am - 5 pm; Lab Hours: Monday - Friday 7 am - 5 pm.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • BusinessYab: 4 reviews total (mixed ratings) (4)

Patients praise

  • Professional and helpful staff
  • Compassionate care from specific physicians
  • Good communication and thorough explanations during appointments

Common complaints

  • Concerns over upfront payment policies for sick visits
  • Last-minute appointment cancellations by the clinic
  • Perceived poor management and customer service regarding scheduling

"She takes care of my needs like I'm a family member. I'm so grateful that's she's my OB/GYN!"

— BusinessYab (Patient Review)

"This is poor management and customer service. I waited for 2 weeks to attend this appointment and I am unable to find any doctors as they told me this last minute. I will never go back to Kelsey clinic again !!!"

— LocalityBiz (Patient Review)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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