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Patient Access

Access your medical records, lab results, and appointments anytime through our secure patient portal.

New Cross Creek, Fulshear Location Our Cinco Ranch Location Patient Portal (Lab Results) Portal Instructions

20+ Years Experience

About Us

SteadFast Primary Care is a team of experienced medical professionals

Dedicated to providing top-quality healthcare services. We believe in a holistic approach to healthcare that focuses on treating the whole person, not just the illness or symptoms.

  • Expert Medical Team
  • Personalized Face-to-Face visits
  • Same-Day Appointments
  • Three Locations across Greater Houston

Telemedicine / Virtual Visits

Sometimes in-person visits are not feasible so our patients can connect with our providers through secure virtual visits for medication refills, symptom questions, and follow-up care.
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Easily Book Your Doctor

Book your appointment online, by phone, or through our patient portal. Choose the time that works best for you and receive confirmation instantly.

Wellness/Physicals

We help you stay healthy with preventative care services such as annual physical exams, Cancer Screenings, Labs and immunizations.

Sick visits

We provide Same-Day visits for colds and flu, UTI, minor injuries.

Chronic Care

We monitor and control chronic diseases such as Diabetes, Hypertension, Obesity, Mental Health, Asthma and more.

Special Clinics

Simply30” Weight Loss and Metabolic Clinic and “Simply50” Menopause Clinic.

Health Insurance

We work with a wide range of insurance providers to make quality healthcare accessible. Our team will verify your coverage and explain your benefits.

  • BCBS of Texas (PPO, HMO, Health Select, Blue Advantage)
  • Ambetter Health (Superior Healthplans) Except "Value" Plan
  • Aetna (All plans except "CVS" plan)
  • Self Pay
  • Cigna
  • United Healthcare (PPO, Choice Plus, HMO Gold, Silver & Bronze)
  • MultiPlan
  • Medicare Standard and most Medicare Advantage Plans
  • United Medicare Advantage & AARP
  • WellMed
  • WellCare
  • Memorial Hermann Health Network
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Our Medical Team

Our doctors take time to really know you, your family, and your health story before making any recommendations.

Dr. Silvia Los MD, FAAFP

Dr Los is the founding member and Medical Director of Stead Fast Primary Care.

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Yurley Angarita-Triana

Yurley Angarita-Triana is board-certified Family Nurse Practitioner with a passion for providing comprehensive,

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Leanne Haver kost FNP-C

Leanne Haverkost is a board certified Family Nurse Practitioner with extensive experience in Family Medicine and Weight Management.

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Jacqueline Sadowski FNP-C

Jacqueline Tedesco is a board certified Family Nurse Practitioner with extensive experience in Family Medicine and Urgent Care. Jacqueline sees patients at Katy Ranch location Mon-Fri and is a Certified DOT Medical Examiner. Click the link below for current reviews from her patients.

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Jessie Chun-Yin Wu FNP-C

Jessie is a board certified Family Nurse Practitioner with extensive experience in Family Medicine and Preventive care. She also has degrees in Biochemistry and Nutrition. Jessie joins the SteadFast team in mid March 2026 at our Cross Creek/Fulshear location. Jessie is fluent in Mandarin Chinese, Taiwanese and English.

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Contact Us

Book a service appointment or just reach out manually to our contact.

Our Contact
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General Questions

Please fill out this short for general questions/enquiries. A member of our team will respond as quickly as feasible.