About gerstenberg.clinic

Providing the care you need in two different ways

Primary care for the whole family through gerstenberg.clinic, and cash-pay wellness services through gerstenberg.clinic WELLNESS.

gerstenberg.clinic The gerstenberg.clinic care team
Primary care

gerstenberg.clinic

gerstenberg.clinic offers full service primary care, but we are not currently accepting pediatric patients under the age of 4 yrs. Our primary care includes child checkups as well as school physicals, well-women exams and annual wellness visits for Medicare enrollees.

Cash-pay wellness

gerstenberg.clinic WELLNESS

We provide cutting-edge products and services through gerstenberg.clinic WELLNESS, including: vitamins, homeopathic remedies, human-identical hormone therapy, medical weight management options, male ED treatments and more. Look around our clinic and website for materials that detail this line as we are consistently seeking out diversification to offer the very best NON-drug treatments for our patients and community.

Services offered through gerstenberg.clinic WELLNESS are considered cash-pay services and claims are not filed with insurance carriers since these services are not covered by insurance. Some flexible spending accounts (FSA) or health savings accounts (HSA) may reimburse for them and we gladly accept cash, check, credit card, Cherry payment plans and CareCredit for these services.

Our approach

We believe in treating the person as a whole. Health is impacted by many different factors, including; vitamin and nutrient deficiency, hormone imbalance, diet choices, physical exercise, and spiritual/emotional factors.

Because of this, gerstenberg.clinic seeks out new and innovative solutions that target healing exactly where the patient needs it – and avoids the side effects of unnecessary treatment.

We join Hippocrates in saying, “the greatest medicine of all is teaching people not to need it.”
K. Paul Gerstenberg, D.O. K. Paul Gerstenberg, D.O.

K. Paul Gerstenberg, D.O.

Education

  • Medical SchoolUniversity North Texas - TCOM
  • ResidencySt. Anthony Hospital, Oklahoma City, OK
  • InternshipOsteopathic Medical - FT. Worth, TX

Professional Certifications

  • Board Certified, Family Medicine
  • Certified Biote® provider
  • Certified in Age Management Medicine (AMM)
  • Fellow, AMM with Cenegenics
  • Member and Fellow of International Lyme and Associated Disease Society

Dr. Gerstenberg received his premedical degree from Lamar University in his hometown Beaumont, TX. He then went on to the University of North Texas Health Sciences Center at Fort Worth to receive his Doctor of Osteopathy degree in 1993. He served his residency at St. Anthony Hospital in Oklahoma City, then went to serve three years in the United States Air Force at Barksdale AFB, Louisiana. After completing his tour of duty, he stayed in Shreveport, Louisiana for two years in private practice. In 2001, he had the opportunity to relocate his wife and four children to Nederland, Texas and build his own practice. Today he has seven children and many wonderful grandchildren.

The clinic Dr. Gerstenberg envisioned practices the full realm of family practice. He has a great interest in preventative medicine, which starts with traditional medical care but has continued to expand into alternative and complementary options as his patients demanded them, now through gerstenberg.clinic WELLNESS. He focuses an increasing amount of time on addressing the root causes of chronic fatigue issues and on cognitive improvement, and he has many special options for those suffering with treatment-resistant neuropathy.

Dr. Gerstenberg serves as the medical director for the Hope Women’s Resource Center and as health authority for the City of Port Neches. Since 1998 he has also been a Clinical Assistant Professor at the University of North Texas Health Sciences Center at Fort Worth-Texas College of Osteopathic Medicine. He does the same with students from the Sam Houston State University College of Osteopathic Medicine and serves on the Lamar University School of Nursing Advisory Board. The clinic works with other local educational centers focusing on healthcare clinical and preclinical education.

Stephen Bell, D.O. Stephen Bell, D.O.

Stephen Bell, D.O.

Education

  • Pre-medUniversity of Texas - Dallas
  • MedicalArizona College of Osteopathic Medicine

Stephen Bell was born and raised outside Fort Worth in Weatherford, Texas. He attended university at UT Dallas and then worked for Alcon, a pharmaceutical company. He completed medical school at Arizona College of Osteopathic Medicine and, after graduation, completed his family medicine residency in Fort Worth.

Dr. Bell has been married for 15 years and has a 9-year-old son and a 7-year-old daughter. He is passionate about preventative testing and lifestyle changes and loves continuing his education on various treatments for all routine health problems. Dr. Bell usually prefers integrating non-pharmacologic treatment options into routine traditional medical practices.

During his time off, he enjoys being near the water, reading, video games, and his french bulldogs.

Jennifer B. Gibson, MS, PA-C Jennifer B. Gibson, MS, PA-C

Jennifer B. Gibson, MS, PA-C

Education

  • Bachelor of Science in Biology, Minor in ChemistryValedictorian of the College of Science, John Brown University - Siloam Springs, AR
  • Master of Science in Allied Health/Physician AssistantBaylor College of Medicine - Houston, TX
  • LicensurePhysician Assistant-Certified - TX Medical Board

Professional Certifications

  • Certified Physician Assistant
  • Certified Biote® provider

Jennifer graduated from Baylor College of Medicine in Houston, TX, where she trained in Pediatrics, Internal Medicine, Emergency Medicine, Obstetrics and Gynecology, Surgery, Psychiatry, Geriatrics, and Community Medicine. She also served on the PA Admissions Committee while attending Baylor College of Medicine. She is certified by the National Commission On Certification of Physician Assistants, and licensed by the state of Texas to practice medicine for all ages.

Her clinical experience includes Urgent Care, Pediatrics, and Family Medicine.

She moved here with her husband in 2001 where they have been raising their 4 children. Through the years, Jennifer has also taught High School Sciences at various local homeschool co-ops. Subjects included Anatomy and Physiology as well as Biology, Chemistry, and Physics. Her love for teaching carries over into educating her patients in healthy lifestyles as she uses a holistic approach to medicine. Prevention is a key component to health care as well as using all available resources to bring healing. Her goal is to continue this journey with her patients through the years.

Ignacio Mark Ramirez, MSN, FNP-C Ignacio Mark Ramirez, MSN, FNP-C

Ignacio Mark Ramirez, MSN, FNP-C

Education

  • Lamar UniversityBachelor of Science in Nursing
  • Walden UniversityMaster of Science in Nursing

Professional Certifications

  • BioTe
  • Certified in Foundations of Advanced Injections (Aesthetics)

Mark is a proud native of Nederland, Texas, who dedicated his life to serving in the United States Air Force. His journey through education began with an undergraduate degree at Lamar University, followed by a Master’s degree from Walden University. With diverse experience in family practice, pain management, emergency care, and intensive care, Mark has collaborated with numerous specialists in hospitals, enriching his career and the lives of those he serves. He is passionate about providing holistic care to his patients and empowering them with the knowledge to improve their physical and psychological well-being.

Mark and his wife and cherish their children and grandson. Together, they embrace life’s adventures, travel the world, and fill their days with joy alongside our three little dogs.

Cristina Sifuentes-Ayala, RD, IBCLC, PA-C Cristina Sifuentes-Ayala, RD, IBCLC, PA-C

Cristina Sifuentes-Ayala, RD, IBCLC, PA-C

Education

  • Lamar UniversityBachelor of Science in Dietetics & Hospitality
  • Lamar UniversityMasters of Science in Nutrition & Dietetics
  • University of PittsburghMasters of Science in Physician Assistant Studies
  • Pi Alpha National Honor Society for Physician Assistants

Professional Certifications

  • Certified Physician Assistant licensed with Texas Medical Board
  • Registered Dietitian, Commission on Dietetic Registration
  • International Board Certified Lactation Consultant

Cristina, a Texas native from Beaumont, is a dedicated Physician Assistant and Registered Dietitian committed to personalized care. She earned her clinical dietitian training at Lamar University, gaining experience with diverse patients in inpatient and community settings. Inspired by her work with healthcare teams, she pursued a career as a Physician Assistant, obtaining her second master's degree from the University of Pittsburgh. Her training encompassed Pediatrics, Internal Medicine, Emergency Medicine, Obstetrics and Gynecology, Surgery, Psychiatry, Geriatrics, and Family Medicine. Board-certified by the National Commission On Certification of Physician Assistants and licensed in Texas, Cristina is qualified to practice medicine for patients of all ages.

Cristina adopts a holistic approach to medicine, integrating nutrition and medicine to promote overall wellness and offering tailored, innovative solutions. Outside of her professional life, Cristina actively volunteers with the local Junior League chapter, enjoys spending time with her family and traveling with her husband of five years.

Phone 409.210.3336 Fax 409.527.3969 Address 2927 Nall Street, Port Neches, TX 77651
2927 Nall Street, Port Neches The gerstenberg.clinic building on Nall Street in Port Neches

Visit us

Find the clinic

  • Phone 409.210.3336
  • Fax 409.527.3969
  • Address 2927 Nall Street • Port Neches, TX • 77651

Pay over time with Cherry, with qualifying 0% APR options. We also accept CareCredit.