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Best Medicare Advantage Plans for 2019 Rating is from U.S. News and World Report, a leading publisher of annual authoritative rankings including Best Medicare Plans. Our plan does not have a direct relationship with U.S. News. This award was not given by Medicare. Our overall rating from Medicare for 2019 is 5.0. Our plan’s official CMS Star Rating can be found at

​Employee Retirement System of Texas


Thank you for your interest in KelseyCare Advantage!

We're pleased that you are considering the KelseyCare Advantage plan. We know it is important to choose a health plan that provides the benefits, quality and service you need. KelseyCare Advantage is pleased to offer such a plan through the Employees Retirement System of Texas to retirees of state agencies and higher education institutions and their dependents.


KelseyCare Advantage is affiliated with Kelsey-Seybold Clinic, a premier medical group based in Houston, Texas. Kelsey-Seybold Clinic physicians have been providing high quality healthcare for more than 60 years.

Our service area includes eight counties. Persons living in the following counties are eligible to enroll in the KelseyCare Advantage HMO plan:
  • Brazoria

  • Chambers

  • Fort Bend

  • Galveston

  • Harris

  • Liberty

  • Montgomery

  • Waller

At KelseyCare Advantage, quality and customer service matter. For 2020, KelseyCare Advantage was awarded a 5-out-of-5 Star overall rating by Medicare for quality of care and customer service. KelseyCare Advantage also had outstanding performance in areas such as doctor communication, quality of care, and drug coverage. 

Thank you, again, for your interest in our plan. We look forward to serving you! If you have any questions at all, please call us at:

(713) 442-2ERS (2377)
Toll-Free: (877) 853-9075
TTY/TDD: (866) 302-9336
8 a.m. to 5 p.m., Monday through Friday
Extended hours may be available during specific enrollment periods.