Kalin Siros, MSN, APRN, FNP-C

Kalin Siros, MSN, APRN, FNP-C, is a nurse practitioner serving the San Antonio community. She works closely with the Texas Colon & Rectal Specialists physicians to provide high quality comprehensive colorectal care.

Provider Type

Nurse Practitioner


Colon and Rectal Surgery

Board Certifications

Advanced Practice Registered Nurse

Family Nurse Practitioner


Texas Colon & Rectal Specialists–San Antonio Medical Center
7940 Floyd Curl Drive Tower II, Suite 1010
San Antonio, Texas 78229
Phone: 210-614-0880
Fax: 210-615-0258

Texas Colon & Rectal Specialists–San Antonio Northeast
2130 NE Loop 410, Suite 100
San Antonio, Texas 78217
Phone: 210-614-0880
Fax: 210-615-0258

Spoken Languages



  • Master of Science, Nursing
    Chamberlain University, Addison, IL
  • Bachelor of Science, Nursing
    Texas A&M University-Corpus Christi, Corpus Christi, TX
  • Bachelor of Science, Biomedical Sciences
    Texas A&M University-Corpus Christi, Corpus Christi, TX

Accolades & Memberships

  • American Academy of Nurse Practitioners (2018-Present)
  • Coastal Bend Advance Practice Nurses (2018-Present)
  • Texas Nurse Practitioners (2018-Present)

Previous Medical Practice

  • Christus Trinity Clinic, Nurse Practitioner, Internal Medicine and Gastroenterology Specialty, Corpus Christi, TX (January 2018 – April 2024)
  • Physician’s PremiER, ER Charge Nurse, Corpus Christi, TX (October 2015 – December 2017)
  • Corpus Christi Medical Center, ER Charge Nurse, Corpus Christi, TX (June 2014 – May 2016)
  • West Houston Medical Center, ER Staff Nurse, Houston TX (June 2013 – June 2014)
  • Christus Spohn Shoreline Hospital, Lead ER Physician Scribe, Corpus Christi, TX (January 2010 – May 2013)

Community Service

  • Preceptor, Family Nurse Practitioner Students (2019-Present)
  • Hurricane Harvey Disaster Clean-Up, Rockport and Port Aransas, TX (2017)
  • New Graduate Mentor, NCLEX-RN Exam (2015)

Existing patients please access the patient portal login to request an appointment.