4.2
32 Ratings with 12 written Reviews
Summary
Dr. Gregory Granzeier treats high-risk pregnancy, abnormal uterine bleeding, and rectovaginal injury, and performs pap tests and fetal ultrasounds as part of his obstetrics and gynecology practice. He has practiced for 35 years.
Dr. Granzeier completed his residency at Lutheran Medical Center and sees patients in Roscoe, Illinois.
Dr. Granzeier completed his residency at Lutheran Medical Center and sees patients in Roscoe, Illinois.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 35 years of experience
- 18 insurance plans accepted
- speaks English
- Lutheran Medical Center
- 12 written reviews
- 1 specialty
- 11 areas of expertise
- 2 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Gregory Sean Granzeier has 2 locationsMercyhealth Roscoe
5000 Prairie Rose DrRoscoe, IL 61073 Tel: (815) 971-2000
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
Compare with Similar Doctors
 |  |  |  |
| Dr. Gregory Sean Granzeier, DO | Dr. Sherma St Fort Morton, MD | Dr. Lyndon Douglas Taylor, MD | Dr. Marie Gonzalez |
| Obstetrics & Gynecology | Obstetrics & Gynecology | Obstetrics & Gynecology | Nurse Practitioner |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 35 Years of Experience | 22 Years of Experience | 48 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English, Spanish, Russian | |
| Roscoe , IL | Durham , NC | Oak Park , IL | Rockford , IL |
| Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med | Med School: University of Florida College of Medicine | Med School: Universidad Autonoma De Guadalajara Facultad De Medicina | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Gregory Sean Granzeier
Medical Specialties
Dr. Gregory Sean Granzeier has the following specialty
Specialty Expertise
Dr. Gregory Sean Granzeier has the following 11 areas of expertise
Certifications, License, & Education
35 Years Experience
Dr. Gregory Sean Granzeier holds an expired medical license in the state of Illinois.
Medical License
Doctor Of Osteopathy with an expired medical license in the state of Illinois that expired 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
- 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.
- 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.
- What languages does Dr. Gregory Granzeier speak?
- Dr. Gregory Granzeier speaks English.
- Does Dr. Gregory Granzeier accept my insurance?
- You can see the insurance plans that Dr. Gregory Granzeier accepts on their Vitals profile.
- Where is Dr. Gregory Granzeier's office located?
- Dr. Gregory Granzeier's office is located at 5000 Prairie Rose Dr, Roscoe, IL, 61073.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
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