Summary

Dr. Maria Rayas is an endocrinologist specializing in diabetes and metabolism, with additional expertise in pediatrics. She earned her medical degree from the University of Texas Health Science Center at San Antonio Joe R. & Teresa Lozano Long School of Medicine and completed her residency at University Hospital. With 19 years of experience in medicine, Dr. Rayas brings extensive knowledge to treating hormone-related conditions across different age groups. She is fluent in both Spanish and English.

Dr. Rayas practices at the Texas Diabetes Institute through University Health in San Antonio, Texas, and maintains hospital privileges at University Hospital. Her clinical focus includes managing diabetes mellitus and caring for elderly patients with diabetes complications. She also treats patients with Type 1 diabetes, providing comprehensive care from diagnosis through long-term management. Her expertise extends to thyroid disorders, where she performs thyroid hormone testing and comprehensive thyroid function evaluations. Patients rate Dr. Rayas 5.0 out of 5 stars for her care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 19 years of experience
  • 30 insurance plans accepted
  • speaks Spanish, English
  • University Hospital
  • 3 specialties
  • 3 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

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Maria S. Rayas, MDDr. Samir Ouais, MDDr. Perihan Dimachkie, MDDr. Bekir Suveyd
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
19 Years of Experience 61 Years of Experience 15 Years of Experience 11 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, English Speaks English Speaks Arabic, English Speaks English, Arabic
San Antonio , TXHouston , TXHouston , TXCHICAGO , IL
Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med Med School: University Of Damascus Faculty Of Medicine Med School: American University of Beirut Medical Center (AUBMC) Med School: Alfaisal University College Of Medicine
Current Profile
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Insurance Plans Accepted by Maria S. Rayas

  • Accepts Medicare
  • Accepts Medicaid
  • 6 Degrees Transplant Network "
  • Aetna Better Health Childrens Health Insurance Program (CHIP) Perinate Newborn"
  • Aetna Better Health Childrens Health Insurance Program (CHIP)" "
  • Aetna Better Health Medicaid STAR
  • Aetna Health Bexar County-ACO Plan (Baptist & HealthTexas) (Please Call)
  • Aetna Health Commercial - Choice POS II
  • Aetna Health Commercial - Elect Choice EPO
  • Aetna Health Commercial - Exchange (Silver/Gold HMO)
  • Aetna Health Commercial - HMO
  • Aetna Health Commercial - Managed Choice POS
  • Aetna Health Commercial - Open Choice PPO (Non-Methodist/HCA)
  • Aetna Health Commercial - QPOS
  • Aetna Health Commercial - Select
  • Aetna Health Commercial - Whole Health EPO (Please Call)
  • Aetna Health Medicare Advantage - Eagle PPO
  • Aetna Health Medicare Advantage - Freedom PPO
  • Aetna Health Medicare Advantage - Premier HMO
  • Aetna Health Medicare Advantage - Prime HMO
  • Aetna Health Medicare Advantage - Value Plus PPO
  • Aetna Health Medicare-Medicaid Dual Preferred (HMO D-SNP)
  • Allwell (Superior HealthPlan) Medicare Advantage - All Products
  • BlueCross BlueShield - Federal Programs Commercial - Federal - All Products
  • BlueCross BlueShield - Out-of-State Commercial - Out-of-State - Blue Card Program Only "
  • BlueCross BlueShield of Texas (BCBSTX) Childrens Health Insurance Plan (CHIP)"
  • BlueCross BlueShield of Texas (BCBSTX) Commercial - HMO - Blue Advantage
  • BlueCross BlueShield of Texas (BCBSTX) Commercial - HMO - Blue Essentials
  • BlueCross BlueShield of Texas (BCBSTX) Commercial - HMO - Blue Premier
  • BlueCross BlueShield of Texas (BCBSTX) Commercial - PPO - Blue Choice
  • BlueCross BlueShield of Texas (BCBSTX) Commercial - PPO (CHRISTUS Health)
  • BlueCross BlueShield of Texas (BCBSTX) HPN/EPO (Narrow Network)

Medical Specialties

Maria S. Rayas has the following 3 specialties

Specialty Expertise

Maria S. Rayas has the following 3 areas of expertise

  • Internist/pediatrician
  • Pediatric Endocrinology
  • Pediatrics

Certifications, License, & Education

19 Years Experience

Maria S. Rayas holds an expired medical license in the state of Texas.

Medical License

Medical Doctor with an expired medical license in the state of Texas that expired in 2026.

Education & Training

Residency

Completed their residency at University Hospital.

Medical School

Graduated from Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med in 2007.

NPI Number

Maria S. Rayas' NPI number is 1457536328.

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Frequently Asked Questions

What languages does Maria Rayas speak?
Maria Rayas speaks Spanish and English.
Which hospitals is Maria Rayas affiliated with?
Maria Rayas is affiliated with University Hospital.
Is Maria Rayas accepting new patients?
Maria Rayas is accepting new patients on Vitals. View Maria Rayas's profile on Vitals to make an appointment.
Where is Maria Rayas's office located?
Maria Rayas's office is located at 701 S Zarzamora St, San Antonio, TX, 78207.
Does Maria Rayas accept my insurance?
You can see the insurance plans that Maria Rayas accepts on their Vitals profile.

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