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Infectious disease doctors who accept Medicare in Phoenix, AZ
CMS lists 42 clinicians in this specialty with a practice address in Phoenix. Accept Medicare assignment (the Medicare-approved amount as full payment): 38. Offer telehealth: 18.
Typical amounts Medicare approves in ZIP 85016 (2024 Medicare rates, the latest CMS has published): a new-patient visit $128, of which you pay about $32; a follow-up visit $98, of which you pay about $25 — 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.
Christelle E. Kassis
✓ Accepts Medicare assignmentMIPS score (2024): 95.6/100Graduated 2003FemaleOther offices in Phoenix: 1Drug and device company payments (2025): $112Kumara Singaravelu, MD
✓ Accepts Medicare assignmentMIPS score (2024): 91.6/100Graduated 2002MaleJanis E. Blair, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.5/100✓ TelehealthGraduated 1987FemaleOther offices in Phoenix: 3Robert Orenstein, DO
✓ Accepts Medicare assignmentMIPS score (2024): 86.5/100✓ TelehealthGraduated 1987MaleOther offices in Phoenix: 3Christopher F. Saling, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.5/100✓ TelehealthGraduated 2015MaleOther offices in Phoenix: 3Maria Teresa A. Seville, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.5/100✓ TelehealthGraduated 1989FemaleOther offices in Phoenix: 3Holenarasipur Vikram, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86.5/100✓ TelehealthGraduated 1992MaleOther offices in Phoenix: 3Jonas Marschall, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.2/100Graduated 1996MaleDrug and device company payments (2025): $4,250Mohammed Alhassen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.1/100Graduated 1991MaleLegesse L. Mekonnen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.1/100Graduated 2000MaleDrug and device company payments (2025): $224Gerardo F. Gomez Abundis, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.9/100✓ TelehealthGraduated 2007MaleOther offices in Phoenix: 2Nelson P. Nicolasora, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.9/100✓ TelehealthGraduated 1996MaleOther offices in Phoenix: 2Drug and device company payments (2025): $51,883Neema Mafi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 30/100Graduated 2003MaleDrug and device company payments (2025): $316Monica Abd El Nour
✓ Accepts Medicare assignmentGraduated 2019FemaleDrug and device company payments (2025): $23Ahmad M. Ahmad Salameh, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007MaleAnnette M. Artau, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2013 · University of South Florida College of MedicineFemaleDrug and device company payments (2025): $22Aristedes Assimacopoulos, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1991 · University of Minnesota Medical SchoolMaleWassim M. Ballan, MD
✓ Accepts Medicare assignmentGraduated 2000MaleMatilda Baraka, MD
✓ Accepts Medicare assignmentGraduated 2016 · Duke University School of MedicineFemaleOther offices in Phoenix: 1Drug and device company payments (2025): $120Jason Beste, MD
✓ Accepts Medicare assignmentGraduated 2008MaleJohn R. Burge, MD
✓ Accepts Medicare assignmentGraduated 1988 · Jefferson Medical College of Thomas Jefferson UniversityMaleVishnu Chundi, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1988MaleDrug and device company payments (2025): $22Adriana T. Gaidici, MD
✓ Accepts Medicare assignmentGraduated 1995FemaleOther offices in Phoenix: 1Drug and device company payments (2025): $3,195Vipul D. Ganatra, MD
✓ Accepts Medicare assignmentGraduated 1996MaleDrug and device company payments (2025): $48,406Jarelys Hernandez Jimenez, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016 · San Juan Bautista School of MedicineFemaleVoichita E. Ianas, MD
✓ Accepts Medicare assignmentGraduated 1999FemaleMaria C. Merrick, DO
✓ Accepts Medicare assignmentGraduated 2011FemaleDrug and device company payments (2025): $105Ammar M. Mian, MD
✓ Accepts Medicare assignmentGraduated 1999MaleOther offices in Phoenix: 2Mirella M. Mircescu
✓ Accepts Medicare assignmentGraduated 2000FemaleOther offices in Phoenix: 1Drug and device company payments (2025): $622Madhu Kiran Murthy, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1999MaleDrug and device company payments (2025): $22Ndidiamaka U. Obiesie, MD
✓ Accepts Medicare assignmentGraduated 1997FemaleDrug and device company payments (2025): $1,637Ngozi A. Osondu, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2001FemaleDrug and device company payments (2025): $801Shane Patterson, MD
✓ Accepts Medicare assignmentGraduated 2012 · Uniformed Services Uhs Fe Hebert School of MedMaleDrug and device company payments (2025): $51Laura K. Schroeder, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1997 · Loyola University of Chicago, Stritch School of MedicineFemaleDrug and device company payments (2025): $2,273Wesley R. Shealey, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Alabama School of MedicineMaleDrug and device company payments (2025): $103Tatyana A. Shekhel, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2008 · Arizona College of Osteopathic Medicine Mid Western UniversityFemaleDrug and device company payments (2025): $250Aishan Shi, MD
✓ Accepts Medicare assignmentGraduated 2019 · University of Arizona College of Medicine - PhoenixFemaleJoel Terriquez, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2005MaleWalid J. Almuti, MD
May accept assignment✓ TelehealthGraduated 1999MaleBarbara Mora Gonzalez, MD
May accept assignmentGraduated 2017FemaleRandy O. Odero, MD
May accept assignmentGraduated 2000MaleDrug and device company payments (2025): $24Suzanne Templer, DO
May accept assignmentGraduated 2002 · Philadelphia College of Osteopathic MedicineFemale
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 Phoenix
- Primary care doctors1,263
- Geriatricians9
- Nurse practitioners2,068
- Cardiologists221
- Dermatologists87
- Orthopedic surgeons167
- Neurologists177
- Gastroenterologists91
- Ophthalmologists106
- Optometrists175
- Podiatrists108
- Urologists61
- Pulmonologists69
- Nephrologists86
- Endocrinologists52
- Rheumatologists27
- ENT doctors67
- Oncologists79
- Psychiatrists199
- Psychologists126
- Therapists and counselors661
- Physical therapists515
- Occupational therapists88
- Speech therapists38
- Audiologists44
- Chiropractors120
- Gynecologists200
- General surgeons185
- Vascular surgeons29
- Pain management doctors39
- Physiatrists59
- Allergists16
- Sleep medicine doctors5
- Dietitians74
- Neurosurgeons54
Other care in Phoenix
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).