Clinicians affiliated with Marshall B Ketchum University
57 clinicians on file with this group · most practice in Los Angeles-Long Beach-Anaheim, CA · PAC ID 9739075177
26 clinicians affiliated with Marshall B Ketchum University are in the 2024 Medicare Part B data, 5 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.
Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report
Affiliated clinicians by specialty, 2024
All specialties · Optometry (20) · Ophthalmology (4) · Family Practice (1) · Physician Assistant (1)
Specialty links go to the specialty in Los Angeles-Long Beach-Anaheim, CA.
Clinicians affiliated with Marshall B Ketchum University, 2024
Alphabetical by last name; 26.
| Name | Specialty | City |
|---|---|---|
| C. Troy Allred, OD | Optometry | Fullerton, CA |
| Elaine Chen, O.D. | Optometry | Fullerton, CA |
| George W Comer, OD | Optometry | Fullerton, CA |
| Ashley D Deemer, O.D. | Optometry | Anaheim, CA |
| Lucrecia Escobar | Optometry | El Monte, CA |
| Yi Jiang, MD | Ophthalmology | San Gabriel, CA |
| Jia Lao, O.D. | Optometry | San Gabriel, CA |
| Rachelle J Lin, O.D., M.S. | Optometry | Fullerton, CA |
| Jayson Madriaga, O.D. | Optometry | North Las Vegas, NV |
| John F Maher, M.D. | Ophthalmology | Torrance, CA |
| Daniel May, M.D. | Family Practice | Yorba Linda, CA |
| Betty Ng, OD | Optometry | Sacaton, AZ |
| John H Nishimoto, OD | Optometry | Fullerton, CA |
| Mark H Sawamura, OD | Optometry | Fullerton, CA |
| Sheila T Soltani, OD | Optometry | Long Beach, CA |
| Emily Stephey | Optometry | Torrance, CA |
| Melissa Tawa, O.D. | Optometry | San Francisco, CA |
| Judy W Tong | Optometry | Fullerton, CA |
| Julie A Tyler, O.D. | Optometry | Anaheim, CA |
| Josh O Wallsh, M.D. | Ophthalmology | Torrance, CA |
| Yao Wang, M.D. | Ophthalmology | West Hollywood, CA |
| Jacob Wilson, OD | Optometry | Tuba City, AZ |
| Robert M Yacoub, O.D. | Optometry | Fullerton, CA |
| Prana L Yenkosky, MMS, PA-C | Physician Assistant | Anaheim, CA |
| Patrick D Yoshinaga, O.D. | Optometry | Anaheim, CA |
| Jessica W Yuen, OD | Optometry | San Francisco, CA |
Practice locations
Listed practice locations in California.
Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.
Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations