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Oncologists who accept Medicare in Harlingen, TX
CMS lists 8 clinicians in this specialty with a practice address in Harlingen. Accept Medicare assignment (the Medicare-approved amount as full payment): 8. Offer telehealth: 1.
Typical amounts Medicare approves in ZIP 78550 (2024 Medicare rates, the latest CMS has published): a new-patient visit $167, of which you pay about $42; a follow-up visit $97, of which you pay about $24 — 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.
Everardo Cobos, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.6/100Graduated 1981 · University of Texas Medical School at San AntonioMaleDrug and device company payments (2025): $143Terence Herman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.6/100Graduated 1972 · University of Connecticut School of MedicineMaleDiane D. Nguyen, DO
✓ Accepts Medicare assignmentMIPS score (2024): 86.6/100Graduated 2001 · West Virginia School of Osteopathic MedicineFemaleDrug and device company payments (2025): $351Marco A. Araneda, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 1989MaleDrug and device company payments (2025): $1,025Habib Ghaddar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100Graduated 1989MaleDrug and device company payments (2025): $518Nabeel Sarhill, MD
✓ Accepts Medicare assignmentMIPS score (2024): 85.1/100✓ TelehealthGraduated 1990MaleDrug and device company payments (2025): $836Todd D. Shenkenberg, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 1980 · Baylor College of MedicineMaleOther offices in Harlingen: 1Drug and device company payments (2025): $3,140Eugene J. Wyszynski, MD
✓ Accepts Medicare assignmentMIPS score (2024): 64.1/100Graduated 1972 · Philadelphia College of Osteopathic MedicineMaleDrug and device company payments (2025): $228
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 Harlingen
- Primary care doctors130
- Nurse practitioners112
- Cardiologists15
- Dermatologists4
- Orthopedic surgeons8
- Neurologists43
- Gastroenterologists14
- Ophthalmologists9
- Optometrists11
- Podiatrists10
- Pulmonologists4
- Nephrologists4
- Endocrinologists3
- ENT doctors3
- Psychiatrists14
- Psychologists4
- Therapists and counselors16
- Physical therapists25
- Occupational therapists5
- Chiropractors6
- Gynecologists10
- General surgeons12
- Pain management doctors3
- Neurosurgeons4
Other care in Harlingen
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).