Healthcare Insights
Largest ophthalmology physician group practices
The U.S. ophthalmology market is growing, driven by an aging population, rising prevalence of chronic eye conditions, and expanding adoption of advanced diagnostics and surgical technologies, including laser-based treatments and minimally invasive surgical techniques.
Large physician groups are increasingly where patient volume is concentrated, making them high-value targets for new therapies and services. Why focus on these groups? Bigger practices often centralize purchasing and standardize clinical pathways, which means they can often adopt new treatments and technologies at scale, impacting more patients and creating wider market reach than smaller, independent practices.
Target the right ophthalmology physician group, and a single relationship can open doors to an entire network. Based on our physician group data, here’s a look at the largest ophthalmology groups, giving a clear view of where patient volume and market opportunity intersect.
How many ophthalmology physician group practices are there in the U.S.?
Our database tracks more than 3,700 active ophthalmology physician group practices in the U.S. Many of these groups are multispecialty organizations, with ophthalmology identified as the primary specialty based on the most common specialty among the physicians associated with the practice. It’s also common for physician groups to have several different locations, meaning the number of physician group practices does not reflect the number of ophthalmology practices in the United States.
Why target ophthalmology physician groups?
While independent physicians offer direct access to decision-makers, more doctors are joining larger groups to benefit from shared resources and greater negotiating power. Targeting these groups isn’t just about outreach; it’s about aligning with the networks that influence patient care at scale and drive adoption of new therapies.
| Rank | Ophthalmology physician group | HQ state | Number of physicians | Number of group practice members | Number of locations | Explore dataset |
|---|---|---|---|---|---|---|
| 1 | Seoul Medical Group | CA | 993 | 1,314 | 234 | Explore |
| 2 | Mass General Brigham Mass Eye and Ear Physicians | MA | 287 | 409 | 22 | Explore |
| 3 | MEDRVA Healthcare | VA | 187 | 229 | 33 | Explore |
| 4 | OCLI Vision | NY | 132 | 172 | 66 | Explore |
| 5 | UT Clinical Health | TN | 121 | 137 | 25 | Explore |
| 6 | Cincinnati Eye Institute | OH | 120 | 232 | 16 | Explore |
| 7 | Wills Eye Hospital Physicians | PA | 114 | 120 | 29 | Explore |
| 8 | Nvision Eye Centers | CA | 96 | 119 | 34 | Explore |
| 9 | NJ Retina | NJ | 83 | 108 | 12 | Explore |
| 10 | SightMD | NJ | 71 | 92 | 63 | Explore |
| 11 | ReFocus Eye Health | CT | 70 | 89 | 31 | Explore |
| 12 | Specialty Vision | CA | 68 | 96 | 44 | Explore |
| 13 | Acuity Eye Group | CA | 66 | 144 | 55 | Explore |
| 14 | Medical Park Tower Surgery Center | TX | 63 | 65 | 1 | Explore |
| 15 | The Retina Group of Washington | MD | 59 | 66 | 18 | Explore |
Fig. 1. Data is from the Definitive Healthcare PhysicianGroupView product. The number of practices represents only those listed as “active” in our database as of December 2025.
What is the largest ophthalmology physician group in the U.S.?
When looking at physician count, Seoul Medical Group, headquartered in California, is the largest ophthalmology group in the U.S., with 993 physicians across 234 locations. Seoul Medical Group is a physician-led independent practice association (IPA), supported by a management services organization (MSO) and majority-owned by private equity (PE) firm Ascend Capital Partners. The group has expanded its reach through partnerships and a recent merger with Korean American Medical Group (KAMG), forming a broad network of affiliated IPAs. While its focus is on ophthalmology, it operates as a multispecialty group.
Mass General Brigham Mass Eye and Ear Physicians follows with 287 physicians. The group is part of Massachusetts Eye and Ear (Mass Eye and Ear), an international center for treatment and research and a teaching hospital of Harvard Medical School. While its primary specialty is ophthalmology, the organization also provides care in otolaryngology (ear, nose, and throat). Mass Eye and Ear clinicians manage cases ranging from routine care to highly complex procedures, and as part of the Mass General Brigham integrated health system, the group collaborates closely with other academic medical centers.
MEDRVA Healthcare ranks third with 187 physicians. Based in Virginia, MEDRVA is an independent healthcare organization that began as a specialty eye hospital and has evolved into a multisite outpatient surgery and care network. MEDRVA operates its own surgery and imaging centers, low vision services, and related programs under local governance, maintaining strong physician relationships.
Tips for targeting ophthalmology physician groups
To see the greatest success with your sales and marketing efforts, it’s crucial that you focus on the unique needs of each ophthalmology physician group. By analyzing the physician group’s data, such as claims, Medicare charges, and tech install information, you can gain essential insights that will help you frame your outreach.
Take the time to personalize the advantages of working with you to the challenges they have—find which challenge is most pressing for the physician group, such as improving patient outcomes, optimizing operations, or enhancing diagnostic capabilities, and emphasize how your product or service can help in this regard.
Learn more
Our Healthcare Insights are created with the use of intelligence from the Definitive Healthcare platform. To discover additional data and power a more intelligent sales strategy thanks to tailored marketing, start a free trial now to access the latest Medicare charges, claims, and affiliation insights for physicians and various healthcare facilities.
