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Tanja O'Connor, DO

My Locations

Map Marker A WellSpan OB/GYN - Ephrata
175 Martin Ave., Suite 125
Ephrata, PA 17522-1761
(717) 721-5700
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Map Marker B WellSpan OB/GYN - Granite Run
266 Granite Run Dr.
Lancaster, PA 17601-6463
(717) 721-5700
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Map Marker C WellSpan OB/GYN - Garden Spot
435 S. Kinzer Ave., Suite 7
New Holland, PA 17557-8706
(717) 721-5700
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Map Marker D WellSpan OB/GYN - Lititz
6 W. Newport Rd., Suite 7
Lititz, PA 17543-7774
(717) 721-5700
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About Me

Why I chose to pursue a career in medicine:

In a world that has become more and more impersonal, I am passionate and dedicated to helping women find solutions to their individual OB-GYN needs. It is a great privilege to train to help people. I went into this field so I could listen and understand patients and their concerns, and operate. I feel honored to have developed my listening and surgical skills after many years of training and practice. I am fortunate to have been a part of people's lives in both their happy and difficult times. Medicine is a field that is constantly changing with more to learn. I find this rewarding.


What I want my patients to know about me:

I was brought up bilingual and have walked five marathons. I love my job. It's an amazing feeling to have a window into people's most vulnerable moments and be part of the solution. I am truly lucky. My favorite surgeries are C-Sections and laparoscopic hysterectomies, uterine ablations and tubal ligations


What I do when I'm not seeing patients:

I love to travel, be active outside, swim, hike, make jewelry, look at the moon and have connected conversations with family and friends. My daughter is a huge ray of sunshine in my life. Jett, the dog, is super funny and makes me laugh a lot. I'm a big advocate of healthy choices and lifestyles.


Clinical Interests

  • Cesarean Section
  • Laparoscopic Hysterectomy

Board Certifications

  • American Board of Osteopathic Obstetrics & Gynecology | Obstetrics & Gynecology

Education & Credentials

  • Medical School: Philadelphia College of Osteopathic Medicine
  • Clinical Training: Ohio University College Of Osteopathic Medicine
  • Internship Program: Bolstord General Hospital
  • Residency Program: Doctors Hospital

WellSpan Hospital Affiliations

  • WellSpan Ephrata Hospital

Health Plans Accepted

WellSpan Financial Assistance Program participant

  • Aetna
  • Aetna Better Health
  • Amerihealth Caritas PA
  • Capital Blue Cross
  • Cigna Healthsprings(Formerly Bravo)
  • Cigna/Greatwest
  • EHP Significa
  • Gateway
  • Geisinger
  • Health America
  • Highmark Blue Shield
  • Humana
  • John Hopkins Health Care
  • PA Medical Assistance
  • PA Medicare
  • Preferred Health Care
  • Railroad Medicare
  • South Central Preferred
  • Tower Health PPO
  • Tricare
  • United Healthcare Community Plan
  • United Healthcare/ Mamsi
  • UPMC Health Plan
  • Vibra Health Plan



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