Summary

Dr. Gregory Granzeier specializes in obstetrics and gynecology, bringing 35 years of experience to women's healthcare. He earned his medical degree from New York College of Osteopathic Medicine and completed his residency in obstetrics and gynecology at Lutheran Medical Center. Dr. Granzeier holds certification from the American Board of Obstetrics and Gynecology and provides care in English.

Dr. Granzeier practices at Mercyhealth in Roscoe, Illinois, where he focuses on comprehensive women's health services. His expertise includes caring for women with high-risk pregnancies and those who are pregnant over age 30. He also addresses antepartum depression during pregnancy. Common procedures he performs include fetal ultrasounds and nonstress tests to monitor baby's health. Patients rate Dr. Granzeier an average of 4.2 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.2
  • 35 years of experience
  • 18 insurance plans accepted
  • speaks English
  • Lutheran Medical Center
  • 12 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Gregory Sean Granzeier has 2 locations

Mercyhealth Roscoe

5000 Prairie Rose DrRoscoe, IL 61073
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
Sat8:00 am - 12:00 pm
SunClosed

Mercyhealth Roscoe

5000 Prairie Rose Dr.Roscoe, IL 61073

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Dr. Gregory Sean Granzeier, DODr. Lyndon Douglas Taylor, MDDr. Lisa Bernadette Bhagan, MDDr. Nancy Abigail Miranda, MD
Obstetrics & GynecologyObstetrics & GynecologyObstetrics & GynecologyObstetrics & Gynecology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
4.1 
35 Years of Experience 48 Years of Experience 22 Years of Experience 43 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish, Russian Speaks Portuguese, Spanish, English Speaks English, Spanish
Roscoe , ILOAK PARK , ILNorth Las Vegas , NVRockford , IL
Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med Med School: Universidad Autonoma De Guadalajara Facultad De Medicina Med School: Howard University College Of Medicine Med School: University Of Puerto Rico School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Gregory Sean Granzeier

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Aetna Better Health - Medicaid (Managed)
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - HMO
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of South Carolina
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield - PPO
  • CHAMPVA
  • Cigna
  • Clear Spring Health
  • Family Health Network
  • Mercy Care
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - Medicaid (Managed)
  • Tricare
  • UnitedHealthcare

Medical Specialties

Dr. Gregory Sean Granzeier has the following specialty

Specialty Expertise

Dr. Gregory Sean Granzeier 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

35 Years Experience

Dr. Gregory Sean Granzeier holds an active medical license in the state of Illinois.

Medical License

Doctor Of Osteopathy with an active medical license in the state of Illinois that expires in 2026.

Education & Training

Residency

Completed their residency at Lutheran Medical Center.

Medical School

Graduated from Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med in 1991.

NPI Number

Dr. Granzeier's NPI number is 1134239320.

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Frequently Asked Questions

Where is Dr. Gregory Granzeier's office located?
Dr. Gregory Granzeier's office is located at 5000 Prairie Rose Dr, Roscoe, IL, 61073.
Does Dr. Gregory Granzeier accept my insurance?
You can see the insurance plans that Dr. Gregory Granzeier accepts on their Vitals profile.
Does Dr. Gregory Granzeier accept virtual/telehealth appointments?
Dr. Gregory Granzeier has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Gregory Granzeier?
You can find contact information for Dr. Gregory Granzeier here on Vitals.
Is Dr. Gregory Granzeier accepting new patients?
Dr. Gregory Granzeier is accepting new patients on Vitals. View Dr. Gregory Granzeier's profile on Vitals to make an appointment.

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