Dr. Zem works in Floresville, TX and 7 other locations and specializes in Internal Medicine and Nephrology. Dr. Zem is affiliated with Baptist Medical Center, Children's Hospital Of San Antonio, Christus Santa Rosa Medical Center, Methodist Hospital, Metropolitan Methodist Hospital, Metropolitan Methodist Hospital, Mission Trail Baptist Hospital and Northeast Baptist Hospital.


Years Experience: Not Available

Procedures Performed

Dr. Zem's Specialties

Dr. Zem's Education & Training

Medical School
Not Available


  • Overall Rating

  • Rate
    Explains conditions & treatments

  • Rate
    Takes time to answer my questions

  • Rate
    Provides follow-up as needed

Dr. Zem's Accepted Insurance

Please verify insurance information directly with your doctor's office as it may change frequently.

Insurance Plans

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Ambetter from Superior HealthPlan MRF

Dr. Zem's Office Information & Appointments

This physician has multiple office locations. See Office Information for details.


Renal Associates PA

497 10th St Ste 102
Floresville, TX 78114

Get Directions

Tel: Not Available

Fax: (210) 226-5211

Practice Website: rapadocs.com

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

M 8:00 AM - 5:00 PM
T 8:00 AM - 5:00 PM
W 8:00 AM - 5:00 PM
T 8:00 AM - 5:00 PM
F 8:00 AM - 5:00 PM
S Closed
S Closed

Other Physicians in Dr. Zem's Practice