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Oncologists who accept Medicare in Orange, CA
CMS lists 57 clinicians in this specialty with a practice address in Orange. Accept Medicare assignment (the Medicare-approved amount as full payment): 54. Offer telehealth: 52.
Typical amounts Medicare approves in ZIP 92868 (2024 Medicare rates, the latest CMS has published): a new-patient visit $188, of which you pay about $47; a follow-up visit $110, of which you pay about $27 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Shirin Attarian, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2009FemaleDrug and device company payments (2025): $145Polina E. Bellman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2013FemaleDrug and device company payments (2025): $142May T. Cho, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2011 · Meharry Medical College School of MedicineFemaleDrug and device company payments (2025): $348April Choi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2018FemaleDrug and device company payments (2025): $421Warren A. Chow, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1986 · R Franklin University of Med & Sci/chicago Medical SchoolMaleDrug and device company payments (2025): $531Stefan O. Ciurea, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1996MaleDrug and device company payments (2025): $9,085Emad Elquza, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2004MaleNicole C. Foley, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2018 · Western Michigan Un Homer Stryker School of MedFemaleDrug and device company payments (2025): $130Deepa Jeyakumar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2005FemaleDrug and device company payments (2025): $1,541Misagh Karimi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1996 · George Washington University School of MedicineMaleDrug and device company payments (2025): $126,942Matthew Keating, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2014 · University of Southern California Keck School of MedicineMaleYulian Khagi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2012 · Saint Louis University School of MedicineMaleDrug and device company payments (2025): $77Piyanuch Kongtim, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2005FemaleFa-Chyi Lee, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1991 · Saint Louis University School of MedicineMaleNataliya Mar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2009 · State University of NY Upstate Medical UniversityFemaleDrug and device company payments (2025): $48,958Nishant V. Munugala, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2018 · University of Miami, LM Miller School of MedicineMaleDrug and device company payments (2025): $35Misako Nagasaka, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2008FemaleDrug and device company payments (2025): $106,175Kiran Naqvi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2001FemaleDrug and device company payments (2025): $6,771Susan M. O Brien, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1980FemaleDrug and device company payments (2025): $47,527Zahra Pakbaz, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1999FemaleDrug and device company payments (2025): $55,020Ritesh Parajuli, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2012MaleDrug and device company payments (2025): $21,563Cathleen J. Park, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2017 · University of Cincinnati College of MedicineFemaleDrug and device company payments (2025): $6,114Lauren C. Pinter-Brown, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1980FemaleDrug and device company payments (2025): $4,795Jorge M. Ramos Perez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2008MaleDrug and device company payments (2025): $142Arash Rezazadeh Kalebasty, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1989MaleDrug and device company payments (2025): $69,977Jennifer B. Valerin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2009 · George Washington University School of MedicineFemaleDrug and device company payments (2025): $104,358Miguel Villalona Calero, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1985MaleDrug and device company payments (2025): $121Jason A. Zell
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 2001MaleMohammadbagher Ziari, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100✓ TelehealthGraduated 1995MaleDrug and device company payments (2025): $291,444Kamyar Nader, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.3/100✓ TelehealthGraduated 2010MaleDrug and device company payments (2025): $91Sandy T. Liu, MD
✓ Accepts Medicare assignmentMIPS score (2024): 92.8/100✓ TelehealthGraduated 2011 · George Washington University School of MedicineFemaleDrug and device company payments (2025): $64,988Wael Harb, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.2/100Graduated 1992MaleDrug and device company payments (2025): $117John S. Link, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.2/100✓ TelehealthGraduated 1972 · University of Southern California Keck School of MedicineMaleDrug and device company payments (2025): $69Erin Dean, MD
✓ Accepts Medicare assignmentMIPS score (2024): 47.5/100Graduated 2014 · University of South Florida College of MedicineFemaleDrug and device company payments (2025): $65Jeffrey Y. Ahn, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017MaleDrug and device company payments (2025): $35Zhaohui L. Arter, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010FemaleDrug and device company payments (2025): $15,603Timothy E. Byun, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1998 · Rush Medical College of Rush UniversityMaleOther offices in Orange: 1Drug and device company payments (2025): $5,583Mihaela C. Cristea, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1992FemaleSami Dwabe, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · University of California, Irvine, California College of MedicineMaleDrug and device company payments (2025): $401Gol M. Golshani, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014FemaleDrug and device company payments (2025): $625Zahra Sadat Hamedi, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014FemaleDrug and device company payments (2025): $308Sam S. Huang, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1991 · JS Weill Medical College, Cornell UniversityMaleOther offices in Orange: 2Drug and device company payments (2025): $8,232Sayeh M. Lavasani, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1992FemaleDrug and device company payments (2025): $34,420Tariq Mahmood, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1971MaleOther offices in Orange: 1Drug and device company payments (2025): $5,321Madhavi Mummaneni, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1998 · University of Southern California Keck School of MedicineFemaleOther offices in Orange: 2Drug and device company payments (2025): $6,546Nellie N. Nafissi, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017FemaleXinyu Nan, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014MaleOther offices in Orange: 2Drug and device company payments (2025): $8,451David J. Park, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006MaleDrug and device company payments (2025): $8,731Kellie Spector, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2018FemaleDrug and device company payments (2025): $5,420Poorva Vaidya, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017 · Georgetown University School of MedicineFemaleDrug and device company payments (2025): $2,426Brian Warnecke, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2019 · Kansas City University of Med & Biosciences, College of Osteo MedMaleDrug and device company payments (2025): $648John K. Wong, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010MaleDrug and device company payments (2025): $8,223Omid Yazdanpanah, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2014MaleDrug and device company payments (2025): $2,173Xiaohui S. Zhao, MD
✓ Accepts Medicare assignmentGraduated 1983MaleDrug and device company payments (2025): $141Elizabeth T. Kaufman, MD
May accept assignmentGraduated 2017 · University of Southern California Keck School of MedicineFemaleOther offices in Orange: 1Lalita H. Pandit, MD
May accept assignment✓ TelehealthGraduated 1985FemaleDrug and device company payments (2025): $8,462Shannon Zhang
May accept assignmentGraduated 2020 · University of Arizona College of MedicineFemaleDrug and device company payments (2025): $186
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Orange
- Primary care doctors441
- Nurse practitioners323
- Cardiologists85
- Dermatologists47
- Orthopedic surgeons79
- Neurologists74
- Gastroenterologists37
- Ophthalmologists65
- Optometrists28
- Podiatrists12
- Urologists43
- Pulmonologists31
- Nephrologists30
- Endocrinologists18
- Rheumatologists12
- ENT doctors25
- Psychiatrists52
- Psychologists31
- Therapists and counselors67
- Physical therapists85
- Occupational therapists17
- Speech therapists36
- Audiologists7
- Chiropractors19
- Gynecologists70
- General surgeons66
- Vascular surgeons10
- Pain management doctors7
- Physiatrists25
- Allergists10
- Dietitians8
- Neurosurgeons23
- Infectious disease doctors15
Other care in Orange
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).