Doctors That Accept Medicare in Ontario, CA
724 Medicare-enrolled clinicians · CMS data, refreshed 2026-06-26
These are 724 clinicians enrolled in Medicare and practicing in Ontario, grouped by specialty below. Being enrolled means they can bill Original Medicare for your care. Most also accept assignment — they take Medicare's approved amount as full payment, so you only owe your deductible and 20% coinsurance. Call first to confirm they're accepting new Medicare patients.
Providers in Ontario by Specialty
Family Medicine(20)
Rashmi Godugu, MD
Our Family Medical Group Inc
1131 W 6th St, Suite 150, Ontario91762
Greg Maler, DO
Pomona Community Health Center
1556 S Sultana Ave, Ontario91761
Jing Moy, DO
Pomona Community Health Center
1556 S Sultana Ave, Ontario91761
Audrey Yun, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Bryant Tran, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Carlyn Estrella, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Chirag Gandhi, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Claudia Rico, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Frances Tran, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jason Ngo, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Javier De La Rosa JR., MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Khoa Nguyen, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Kim Henon, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michael Panowicz, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michaella Gaite, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michelle Ko, DO
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Purvi Patel, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Todd Westra, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Virpal Gill
Supportive Care Specialists
, Ontario91764
Nagasamudra Ashok, MD
Upland-Ontario Medical Clinic Inc
1520 N Mountain Ave, Suite 128, Ontario91762
Internal Medicine(20)
Ragu Sivarajan, DO
1304 W Holt Blvd, Suite A, Ontario91762
Claudio Gallego, AA
California Kidney Specialists
1304 W Holt Blvd, Suite A, Ontario91762
Michael Bien, MD
California Kidney Specialists
1304 W Holt Blvd, Suite A, Ontario91762
Hedy Loa, MD
Our Family Medical Group Inc
1131 W 6th St, Suite 150, Ontario91762
Ranjit Shenoy, MD
Pomona Community Health Center
1556 S Sultana Ave, Ontario91761
Raymond Waliany, MD
Pomona Community Health Center
1556 S Sultana Ave, Ontario91761
Daniel Seid, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jeff Chuang, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jessica Hong
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Johnathan Chou, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Narmisha Patel, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Paymon Mesgarzadeh, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Raphael Toutounjian, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Tiffany Ma, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Tommy Oei, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Houman Badrzadeh, DO
Supportive Care Specialists
, Ontario91764
Christine Bui, DO
Unicare Community Health Center, Inc.
1151 E Walnut St, Ontario91761
Ajay Meka, MD
Universal Multispecialty Medical Group Inc
1650 S Euclid Ave, Ontario91762
Meena Meka, MD
Universal Multispecialty Medical Group Inc
1650 S Euclid Ave, Ontario91762
Venkata Pulakanti, MD
Wound Masters Medical Group Inc
1131 W 6th St, Suite 250, Ontario91762
Geriatric Medicine(1)
Norman Ragaza, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Cardiology(8)
Satish Choudhary, MD
550 N Monterey Ave, Ontario91764
Alan Kuo, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Arti Choure, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Cheng Chen, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Nainesh Gandhi, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Omair Javed, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Puneet Ghayal, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Samantha Benin, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Optometry(16)
Francesca Fuertez, OD
615 N Palm Ave, Ontario91762
Francesca Fuertez, OD
615 N Palm Ave, Ontario91762
Harvey Yamamoto, OD
417 N Euclid Ave, Ontario91762
John Rossi, OD
615 N Palm Ave, Ontario91762
Constance Twu, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Cynthia Camille Mund, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Helen Kee, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Kelly Delange, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Kenneth Bracken, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Leslie Perez, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michael Allen, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michael Ferreri, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Michael Lim, OD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Khan Lau, OD
Unicare Community Health Center, Inc.
437 N Euclid Ave, Ontario91762
Nancy Kwan, OD
Unicare Community Health Center, Inc.
437 N Euclid Ave, Ontario91762
Sara Drake, OD
Unicare Community Health Center, Inc.
437 N Euclid Ave, Ontario91762
Ophthalmology(20)
Armin Vishteh, MD
1211 W 6th St, Ontario91762
Amila Silva, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Arun Jain, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Ashley Roldan, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Blake Crawford, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Farnaz Memarzadeh, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Grace Su, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Heena Patel, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jaehong Han, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jason Jia, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jonathan Tung, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Julia Angkadjaja, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Patrick Lee, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Payam Morgan, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Rudy Hedayi, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Rui Zhang, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Terry Kang, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Victoria Chen Espinoza, MD
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Eric Areiter, MD
Thomas S Tooma M D A Professional Corporation
3155 D Sedona Ct, Suite 100, Ontario91764
Richard Burns, MD
Thomas S Tooma M D A Professional Corporation
3155 D Sedona Ct, Suite 100, Ontario91764
Podiatry(15)
Brad Katzman, DPM
Burbank Podiatry Asscociates Group A Professional Corporation
728 N Euclid Ave, Ontario91762
Francisco Mendivil-Moreno, DPM
Burbank Podiatry Asscociates Group A Professional Corporation
728 N Euclid Ave, Ontario91762
James Jung, DPM
Burbank Podiatry Asscociates Group A Professional Corporation
728 N Euclid Ave, Ontario91762
Paul Hong, DPM
Burbank Podiatry Asscociates Group A Professional Corporation
728 N Euclid Ave, Ontario91762
Brian Wong, DPM
Foot Heel Ankle Podiatry Corporation
1520 N Mountain Ave, E122, Ontario91762
Adam Myers, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Anthony Kimball, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Caroline Ko, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jack Madsen IV, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Jason Bowen, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Kent Cramer, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Pedro Aldape Esquivel, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Yong-Han Shi, DPM
Southern California Permanente Medical Group
2295 S Vineyard Ave, Ontario91761
Youngsen Jeng, DPM
Upperline Healthcare California PC
728 N Euclid Ave, Ontario91762
Daniel Chu, DPM
Wound Healing Care Specialists Inc
3536 Concours, Suite 225, Ontario91764
Showing the largest specialties in this city (100 of 150 listed providers). Call ahead — not every Medicare-enrolled clinician here fits on one page.
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Frequently Asked Questions
Are these doctors in Ontario accepting new Medicare patients?
We can't say for sure — CMS's enrollment data confirms a provider is enrolled in Medicare, not whether their practice is currently open to new patients. Call first to confirm they're accepting new Medicare patients before you book.
What does "accepts Medicare assignment" mean?
It means the provider takes Medicare's approved amount as full payment for a covered service, so you only owe your normal deductible and 20% coinsurance — no extra charges. A provider marked "may accept assignment" can go either way, so ask when you call.
Will these doctors work with my Medicare Advantage plan?
Not necessarily. This directory is built from Medicare enrollment data, which applies to Original Medicare. If you have a Medicare Advantage plan, your plan's own network determines who's covered — check your plan's directory first, then confirm with the office directly.
Does Original Medicare cover dental care from these providers?
Original Medicare does not cover routine dental care like cleanings, fillings, or dentures. Some Medicare Advantage plans include dental benefits. See our guide on what Medicare does and doesn't cover for dental.
Provider data from the CMS Doctors and Clinicians National Downloadable File, refreshed 2026-06-26. Directory information only, not medical or insurance advice. View all Medicare doctors in California →