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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Crystal Sierra:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Crystal Sierra is Good. Dr. Sierra has been reviewed by 3 patients who have provided 1 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 3.7
Courteous Staff 3.7
Accurate Diagnosis 3.7
Bedside Manner 3.7
Spends Time with Me 3.7
Follows Up After Visit 3.3

Specialties & Research

Dr. Crystal Sierra, MD is board certified in Pediatrics.

Education & Awards

Dr. Sierra graduated from The University of Texas at Galveston. She has 2 awards.

Bridges to Excellence Recognition
Physician Office Systems Recognition (2015 - 2017)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2015 - 2018)


Dr. Sierra has 2 hospital affiliations:

  • Clear Lake Regional Medical Center 
  • University of Texas Medical Branch 


  • Spanish

> > > > Dr. Crystal Sierra, MD

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Additional Information
Dr. Crystal Ann Sierra MD is a female Pediatrician, has 6 years of experience and practices in Pediatrics.
Where does Dr. Crystal A. Sierra practice?
Dr. Crystal Sierra has 1 office location.
Dr. Crystal Sierra practices Pediatrics near Friendswood, TX.
See Friendswood Pediatricians.