Xavier Castillo, MD

Kelsey-Seybold Medical Group Provider
Pointer4.9 (309 Reviews) Read reviews
Language(s): English, Spanish
1001 Campbell Road,
Houston,
TX
77055
Joined Kelsey-Seybold: December 1997
Ways to Schedule an Appointment
My Video Profile
"I would like every patient to have a positive, educational and motivational experience so that each person feels good about making positive lifestyle changes. Prevention and a healthy lifestyle are the two most important elements to health care."
My Biography
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Professional Background
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Professional Associations
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Hobbies and Interests
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Awards & Publications
Dr. Castillo graduated from Meharry Medical College in Nashville in 1981. He completed his residency at Oakwood Hospital in Dearborn, Michigan before completing a Master’s degree in Public Health and his residency in General Preventive Medicine at Loma Linda University in California. Dr. Castillo completed fellowship training in Occupational Medicine at West Virginia University, Morgantown.
Dr. Castillo is a member of the American College of Occupational and Environmental Medicine, American College of Preventive Medicine, American College of Lifestyle Medicine, Harris County Medical Society and the Texas Medical Association.
When he’s not caring for patients at Kelsey-Seybold Clinic, Dr. Castillo enjoys spending time with his wife and playing racquetball and baseball with his two sons.
Appointments and Certifications
Dr. Castillo has been certified by the United Kingdom Offshore Operators Association and is a certified Oil & Gas UK (OGUK) medical examiner.
He is also certified by the Association of Diving Contractors International and is a U.S. Department of Transportation (DOT) certified medical examiner for the Federal Motor Carrier Safety Administration (FMCSA).
Accepted Insurance
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AmeriBen TPA
KelseyCare powered by Academy Sports+Outdoors
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Cigna Plans
Cigna
- Choice Fund PPO
- Choice Fund Open Access Plus (OAP)
- Cigna EPO
- Cigna HMO
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact Cigna at the phone number on the back of your member ID card or go online to the Cigna member portal to select a Kelsey-Seybold PCP prior to your appointment.
- Cigna KelseyCare
- Cigna HMO Open Access (OA)
- Cigna HMO Open Access Plus (OAP)
- Cigna POS
- Cigna PPO
- Cigna Consumer Driven Health Plan (CDHP)
- Cigna Surefit
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact Cigna at the phone number on the back of your member ID card or go online to the Cigna member portal to select a Kelsey-Seybold PCP prior to your appointment.
- KelseyCare powered by Cigna
- LocalPlus
- LocalPlus IN
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Blue Cross Blue Shield Plans
Blue Cross Blue Shield
The specific BCBSTX PPO and HMO plans in which Kelsey-Seybold participates are:
- Anthem BCBS PPO
- Blue Access Choice PPO
- Blue Access PPO
- Blue Card PPO
- Blue Essentials HMO Click here to learn more about selecting a Kelsey Primary Care Physician
- Blue Choice PPO
- Blue Cross Blue Shield of Texas
- Blue Cross Blue Shield Federal Employee Program (Basic and Standard Option)
- Health Select of Texas - ERS Click here to learn more about selecting a Kelsey Primary Care Physician
- TRS-ActiveCare Primary Click here to learn more about selecting a Kelsey Primary Care Physician
- TRS-ActiveCare Primary+ Click here to learn more about selecting a Kelsey Primary Care Physician
- TRS-ActiveCare HD
- TRS-ActiveCare 2
- UT Select
Kelsey-Seybold will not participate in the following BCBSTX plans: Blue Premier, Blue High-Performance network, Marketplace plans: My Blue Health, and Blue Advantage HMO, or any BCBSTX Medicare products. View FAQ (pdf)
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Humana Plans
Humana
Non-Medicare Advantage
- Humana PPO
- Humana Preferred PPO
- Humana Preferred POS (Open Access)
- Humana ChoiceCare PPO
- Humana National POS Open Access
Medicare Advantage
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Aetna Plans
KelseyCare Aetna
Aetna PPO, POS, and EPO Plans
Kelsey-Seybold Clinic is an in-network provider for most Aetna PPO, POS, and EPO plans*, including:
- Aetna Select
- Open Access Select
- Elect Choice
- Aetna Open Access Elect Choice
- Aetna Choice POS II
- Managed Choice
- Open Choice PPO
Aetna CVS Health Marketplace Plans
Effective January 1, 2023
- Bronze S
- Silver 1
- Silver 2
- Silver 3
- Silver 4
- Silver S
- Gold
- Gold S
*All Houston area Aetna CVS Health plans are accepted at Kelsey-Seybold Clinic*
*Kelsey-Seybold does not participate in any commercial Aetna HMO and HNO plans, including Aetna QPOS.
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UnitedHealthcare Plans
UnitedHealthcare (UHC)
- UnitedHealthcare Charter
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact United Healthcare Charter at the phone number on the back of your member ID card or go online to the United Healthcare member portal to select a Kelsey-Seybold PCP prior to your appointment.
- UnitedHealthcare Choice
- UnitedHealthcare Choice Plus
- UnitedHealthcare Core
- UnitedHealthcare Core Plus
- UnitedHealthcare Navigate
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact United Healthcare Navigate at the phone number on the back of your member ID card or go online to the United Healthcare member portal to select a Kelsey-Seybold PCP prior to your appointment.
- UnitedHealthcare Navigate Plus
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact United Healthcare Navigate Plus at the phone number on the back of your member ID card or go online to the United Healthcare member portal to select a Kelsey-Seybold PCP prior to your appointment.
- UnitedHealthcare NexusACO-R
- Note: A Kelsey-Seybold PCP is required to schedule a primary care appointment. Please contact United Healthcare NexusACO at the phone number on the back of your member ID card or go online to the United Healthcare member portal to select a Kelsey-Seybold PCP prior to your appointment.
- UnitedHealthcare NexusACO (OAP and OA)
- UnitedHealthcare Options PPO
- UnitedHealthcare Select
- UnitedHealthcare Select Plus
- UnitedHealthcare Charter
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Other Plans
Allied Benefit Systems/NGBS
Federal Employee Health Benefits (FEHB)
- APWU Health Plan Nationwide – CDHP with UnitedHealthcare PPO
- APWU Health Plan Nationwide – High Option with Cigna PPO
- GEHA Benefit Plan Nationwide – High & Standard Options with UnitedHealthcare Choice Plus
- NALC Nationwide with Cigna OAP
- NALC Value Option Nationwide with Cigna OAP
- SAMBA Nationwide – High & Standard with Cigna OAP
- Blue Cross Blue Shield – Standard Option
- Blue Cross Blue Shield – Basic Option
Great West Healthcare (also known as Cigna-GWH)
- POS
- PPO
- Open Access
HealthSmart PPO
Medicare
Kelsey-Seybold Clinic accepts the following Medicare Advantage Plans: KelseyCare Advantage, Aetna Medicare Advantage, WellCare TexanPlus, Humana Medicare and select UnitedHealthcare plans. Effective January 1, 2009, Kelsey-Seybold Clinic does not accept patients with traditional Medicare.
MultiPlan PPO
Private Healthcare Systems PPO (PHCS)
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Kelsey Plans
Kelsey Plan
When you select a Kelsey Plan, you’re choosing the doctors at Kelsey-Seybold Clinic to deliver and coordinate your care. Learn more here.
KelseyCare Advantage
KelseyCare Aetna
Kelsey-Seybold does not participate in Aetna HMO and HNO plans, including Aetna QPOS.
KelseyCare powered by Academy Sports+Outdoors
KelseyCare Powered by Cigna
HMO - More Information
KelseyCare Humana
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Medicare Advantage Plans
Education and Board Certifications
Medical School
- Meharry Medical College, 1981
Internship/Residency
- Oakwood Hospital & Medical Center, Loma Linda University School of Public Health, West Virginia University Health Sciences Center
Board Certifications
- American Board of Preventive Medicine - Occupational Medicine
- American Board of Preventive Medicine - Public Health & General Preventive Medicine