If you’re marketing products or services in the obstetrics/gynecology space, targeting physician groups—especially the largest obstetrics/gynecology physician groups—can be a smart strategy. These organizations often centralize purchasing decisions, which means a single connection could lead to large-volume sales and lasting business relationships.
When deciding which physician groups to approach, both their size and specialty are key. Focusing on the largest obstetrics/gynecology physician groups gives you access to broader networks, more qualified leads, and bigger revenue opportunities.
How many obstetrics/gynecology physician groups are there in the U.S.?
According to our data, there are over 6,000 obstetrics/gynecology physician group practices across the U.S., ranging from solo practitioners to organizations with hundreds of doctors. Since many groups operate across multiple locations, the total number of practices doesn’t capture the full footprint of obstetrics/gynecology care in the country.
List of Top obstetrics/gynecology physician groups in the U.S
Certainly! Here’s a table listing 20 of the largest obstetrics/gynecology physician groups in the U.S., highlighting their locations and the number of physicians:
| Rank | Physician Group Name | Location | Number of Physicians | Access Data |
|---|---|---|---|---|
| 1 | Southern California Permanente Medical Group | Pasadena, CA | 13,547 | Signup Now |
| 2 | The Permanente Medical Group | Oakland, CA | 11,209 | Signup Now |
| 3 | HCA Florida Healthcare Physicians | Davie, FL | 7,192 | Signup Now |
| 4 | Mayo Clinic Physicians | Rochester, MN | 5,554 | Signup Now |
| 5 | University of Pittsburgh Physicians | Pittsburgh, PA | 5,401 | Signup Now |
| 6 | NYU Langone Health Physicians | New York, NY | 5,089 | Signup Now |
| 7 | Northwestern Medical Group | Chicago, IL | 5,046 | Signup Now |
| 8 | HealthCare Partners IPA | Garden City, NY | 5,022 | Signup Now |
| 9 | Northwell Health Physician Partners | New Hyde Park, NY | 4,909 | Signup Now |
| 10 | RWJBarnabas Health Medical Group | West Orange, NJ | 4,607 | Signup Now |
| 11 | Ascension Medical Group | St. Louis, MO | 4,585 | Signup Now |
| 12 | Penn Medicine Physicians | Philadelphia, PA | 4,238 | Signup Now |
| 13 | Banner Health Physicians | Phoenix, AZ | 4,063 | Signup Now |
| 14 | Mercy Clinic Physicians | Chesterfield, MO | 3,938 | Signup Now |
| 15 | Beaumont Health Physicians | Dearborn, MI | 3,936 | Signup Now |
| 16 | Emory Healthcare | Atlanta, GA | 2,800 | Signup Now |
| 17 | Revere Health | Provo, UT | 175 | Signup Now |
| 18 | The Polyclinic | Seattle, WA | 200 | Signup Now |
| 19 | TeamHealth | Knoxville, TN | 20,000 | Signup Now |
| 20 | Geisinger Health Physicians | Danville, PA | 3,695 | Signup Now |
Please note that while these groups are among the largest physician organizations in the U.S., the number of physicians listed encompasses all specialties, not exclusively obstetrics/gynecology. Specific obstetrics/gynecology physician counts within these groups may vary.
For more detailed information on obstetrics/gynecology physician groups, including specific OB/GYN physician counts and locations, you might consider accessing specialized healthcare databases or industry reports.
Why go after the largest obstetrics/gynecology physician groups?
Compared to hospitals or health systems, physician groups often provide easier access to decision-makers. The largest obstetrics/gynecology physician groups are especially attractive because they have greater purchasing power, more specialized needs, and the capacity to adopt new technologies at scale.
These groups frequently invest in advanced equipment, training, and tools to support high-quality care—making them ideal targets for vendors in women’s health.
Who are the largest obstetrics/gynecology physician groups?
- Southern California Permanente Medical Group is the largest, with 879 physicians.
- The Permanente Medical Group follows with 848 physicians.
- NYU Langone Health Physicians is third, with 582 obstetrics/gynecology practitioners.
Knowing who the largest obstetrics/gynecology physician groups are can help you better understand where the biggest opportunities lie—and how to approach them with confidence.
Tips for marketing to obstetrics/gynecology groups
Each obstetrics/gynecology group has its own challenges and goals. To stand out, customize your messaging using data like technology usage, procedure volumes, and Medicare billing trends. This insight can help you align your offering with the group’s most pressing needs.
Focus your pitch on how your solution improves patient care, boosts efficiency, or supports diagnostic accuracy. Be sure to include relevant case studies or clinical outcomes that back up your claims.
Want to Dig Deeper?
Our Healthcare Insights, powered by the Ampliz Healthcare platform, give you access to valuable data on physician groups nationwide. Start Signup Now to explore claims data, Medicare charges, and affiliations—so you can tailor your outreach to the largest obstetrics/gynecology physician groups with precision and impact.
