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Mary Johnson, MD, FACOG

Mary Johnson, MD

Accepting New Patients

Maternal Fetal Medicine
Obstetrics & Gynecology

WellSpan Medical Group

My Locations

Map Marker A WellSpan Maternal-Fetal Medicine
35 Monument Rd, #202
York, PA 17403
(717) 851-2722
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Map Marker B WellSpan Maternal-Fetal Medicine
450 S. Washington St., Suite D
Gettysburg, PA 17325
(717) 338-3292
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Map Marker C WellSpan Maternal-Fetal Medicine
22 St. Paul Dr., Suite 101
Chambersburg, PA 17201
(877) 722-1757
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Map Marker D WellSpan Maternal-Fetal Medicine
4150 Barrett Blvd.
Ephrata, PA 17522
(866) 244-3492
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About Me

Why I chose to pursue a career in medicine:

I have always wanted to help others be their happiest and healthiest. My uncle was a pediatrician and was an important mentor to me throughout my life. I thought I would also be a pediatrician until I did my obstetrics rotation in my third year of medical school. I was overwhelmed and enthralled—seeing mothers go through the trials of childbirth to then fall instantly in love with their newborn(s) was amazing. Specializing in maternal-fetal medicine then let me gain expertise in caring for mothers with complicated pregnancies so that they could successfully have healthy babies, as well.

What I want my patients to know about me:

I am a mother, a wife, and a Ravens fan. I am a medical consultant to a Christian hospital in Bethlehem in the occupied West Bank and visit there yearly.

What I do when I'm not seeing patients:

I love to read, garden, and spend time at the beach. I am a volunteer at a women's homeless shelter in Baltimore City where my group has prepared and served three meals a month for the past 10 years. I was named their "Woman of the Year" a few years ago. The joy of serving women in this capacity is so fulfilling.

Clinical Interests

  • High Risk Pregnancy

Board Certifications

  • American Board of Obstetrics & Gynecology | Obstetrics & Gynecology
  • American Board of Obstetrics & Gynecology | Maternal & Fetal Medicine

Education & Credentials

  • Medical School: University of Maryland School of Medicine
  • Internship Program: University of Maryland Medical Center
  • Residency Program: University of Maryland Medical Center
  • Fellowship Program: Johns Hopkins Hospital
  • Undergraduate Education: Loyola University of Maryland

WellSpan Hospital Affiliations

  • WellSpan Ephrata Hospital
  • WellSpan Gettysburg Hospital
  • WellSpan York 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
  • InterGroup
  • John Hopkins Health Care
  • MD Medical Assistance
  • PA Medical Assistance
  • PA Medicare
  • Preferred Health Care
  • Private Healthcare Systems
  • South Central Preferred
  • Tower Health PPO
  • Tricare
  • United Healthcare Community Plan
  • United Healthcare/ Mamsi
  • UPMC Health Plan
  • Vibra Health Plan

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