Summary

Dr. Mary Oneill is an obstetrician and gynecologist who brings over four decades of experience to women's healthcare. She earned her medical degree from Creighton University School of Medicine and completed her residency training at New York Medical College. With 41 years of dedicated practice, Dr. Oneill has developed extensive expertise in comprehensive women's health services. She is fluent in both English and Spanish, allowing her to serve a diverse patient population.

Dr. Oneill practices at Good Samaritan Hospital and maintains locations in Campbell and San Jose, California. She specializes in treating conditions such as abnormal uterine bleeding, vaginitis, and vulvitis. Her procedural expertise includes breast cancer screening, pelvic ultrasounds, and specialized breast imaging techniques. Patients have given her an average rating of 3.2 out of 5 stars on Vitals, reflecting their experiences with her care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.1
  • 41 years of experience
  • 39 insurance plans accepted
  • speaks English, Spanish
  • New York Medical College
  • 5 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Provided follow-up after the visit
  • Flexible scheduling

Office Locations

Dr. Mary Margaret Oneill has 2 locations

Cedar Obgyn

200 W Campbell AveCampbell, CA 95008
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Oconnor Hospital

2105 Forest AveSan Jose, CA 95128

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Dr. Mary Margaret Oneill, MDDr. Ingrid Anne Rodi, MDDr. Shawanda Renee Obey, MDDr. Kavita Mishra, MD
Obstetrics & GynecologyObstetrics & GynecologyObstetrics & GynecologyObstetrics & Gynecology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.1 
4.7 
41 Years of Experience 47 Years of Experience 26 Years of Experience 18 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English, Spanish Speaks English, Portuguese, German Speaks English Speaks Chinese, Spanish
Campbell , CALos Angeles , CARancho Cucamonga , CARedwood City , CA
Med School: Creighton University School Of Medicine Med School: Warren Alpert Medical School Of Brown University Med School: Texas Tech University Health Science Center School Of Medicine Med School: University Of California San Francisco School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mary Margaret Oneill

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Aetna - HMO
  • Affinity Health Plan
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AltaMed Senior BuenaCare (PACE)
  • AmeriHealth
  • Anthem Blue Cross
  • Blue Cross Blue Shield of Tennessee
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Brand New Day
  • CHAMPVA
  • Cigna
  • Contra Costa Health Plan
  • GEHA
  • Health Net
  • Health Net - HMO
  • Health Plan of San Joaquin
  • Humana
  • Kaiser Permanente
  • Magellan Health
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Optum Health
  • Santa Clara Family Health Plan
  • Santa Clara Family Health Plan - Medicaid (Managed)
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • Valley Health Plan
  • Valley Health Plan - HMO
  • Western Health Advantage

Medical Specialties

Dr. Mary Margaret Oneill has the following specialty

Specialty Expertise

Dr. Mary Margaret Oneill has the following 11 areas of expertise

  • Birth Control
  • C-section
  • Child Birth
  • Hot Flashes
  • Infertility
  • Menopause
  • Menstrual Pain
  • Pap Smear
  • Pelvic Exam
  • Pregnancy
  • Women's Health

Certifications, License, & Education

41 Years Experience

Dr. Mary Margaret Oneill holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2026.

Education & Training

Residency

Completed their residency at New York Medical College.

Medical School

Graduated from Creighton University School Of Medicine in 1985.

NPI Number

Dr. Oneill's NPI number is 1215142419.

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Frequently Asked Questions

What languages does Dr. Mary Margaret Oneill speak?
Dr. Mary Margaret Oneill speaks English and Spanish.
Is Dr. Mary Margaret Oneill accepting new patients?
Dr. Mary Margaret Oneill is accepting new patients on Vitals. View Dr. Mary Margaret Oneill's profile on Vitals to make an appointment.
Does Dr. Mary Margaret Oneill accept my insurance?
You can see the insurance plans that Dr. Mary Margaret Oneill accepts on their Vitals profile.
Where is Dr. Mary Margaret Oneill's office located?
Dr. Mary Margaret Oneill's office is located at 200 W Campbell Ave, Campbell, CA, 95008.
Which hospitals is Dr. Mary Margaret Oneill affiliated with?
Dr. Mary Margaret Oneill is affiliated with Good Samaritan Hospital.

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