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Gastroenterologists who accept Medicare in Tucson, AZ
CMS lists 51 clinicians in this specialty with a practice address in Tucson. Accept Medicare assignment (the Medicare-approved amount as full payment): 50. Offer telehealth: 3.
Typical amounts Medicare approves in ZIP 85712 (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.
Ahmad M. Shaban, MD
✓ Accepts Medicare assignmentMIPS score (2024): 100/100Graduated 1974MaleDrug and device company payments (2025): $252Le Roi A. Baez, MD
✓ Accepts Medicare assignmentMIPS score (2024): 99.8/100Graduated 1988MaleOther offices in Tucson: 1Drug and device company payments (2025): $1,666Robert M. McCallum, MD
✓ Accepts Medicare assignmentMIPS score (2024): 99.8/100Graduated 1988MaleDrug and device company payments (2025): $2,520John J. McNerney Jr., MD
✓ Accepts Medicare assignmentMIPS score (2024): 99.8/100Graduated 1984 · Northwestern University Feinberg Medical SchoolMaleDrug and device company payments (2025): $3,041Avin Aggarwal, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100Graduated 2010MaleOther offices in Tucson: 1Drug and device company payments (2025): $393Rilwan A. Balogun, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100Graduated 2015 · University of California, San Francisco School of MedicineMaleOther offices in Tucson: 1Drug and device company payments (2025): $206Oleh Haluszka, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100Graduated 1982 · Uniformed Services Uhs Fe Hebert School of MedMaleDrug and device company payments (2025): $156Joshua E. Melson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100Graduated 2002 · Indiana University School of MedicineMaleOther offices in Tucson: 1Drug and device company payments (2025): $130Juanita L. Merchant, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100Graduated 1984 · Yale University School of MedicineFemaleDrug and device company payments (2025): $222Kai Rou Tey, MD
✓ Accepts Medicare assignmentMIPS score (2024): 93.3/100✓ TelehealthGraduated 2012FemaleOther offices in Tucson: 2Drug and device company payments (2025): $204Vijit Chouhan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 2016 · University of Missouri, Kansas City, School of MedicineMaleOther offices in Tucson: 3Drug and device company payments (2025): $193Rehan Iftikhar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 1994MaleOther offices in Tucson: 2Drug and device company payments (2025): $793Pooja K. Lal, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100✓ TelehealthGraduated 2015FemaleOther offices in Tucson: 3Drug and device company payments (2025): $254Mark T. Lin, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 2004 · Rush Medical College of Rush UniversityMaleOther offices in Tucson: 2Drug and device company payments (2025): $1,084Ibraheem M. Mizyed, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 2001MaleOther offices in Tucson: 2Drug and device company payments (2025): $325John K. Shekleton, MD
✓ Accepts Medicare assignmentMIPS score (2024): 88.8/100Graduated 1985 · Southern Illinois University School of MedicineMaleDrug and device company payments (2025): $42Rizwan Safdar, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.7/100Graduated 1991MaleOther offices in Tucson: 2Drug and device company payments (2025): $1,269Stephanie D. Martinez Hawthorne, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.1/100Graduated 1998 · University of Colorado School of Medicine, DenverFemaleDrug and device company payments (2025): $26Gary R. Monash, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.7/100Graduated 1977 · Michigan State University College of Human MedicineMaleDrug and device company payments (2025): $2,024Ibrahim Yaghnam, MD
✓ Accepts Medicare assignmentMIPS score (2024): 79.4/100Graduated 2018MaleOther offices in Tucson: 1Drug and device company payments (2025): $2,192Scott E. Blinkoff, MD
✓ Accepts Medicare assignmentMIPS score (2024): 26.2/100Graduated 1987 · Icahn School of Medicine at Mount SinaiMaleOther offices in Tucson: 2Drug and device company payments (2025): $457Bryan Contreras, MD
✓ Accepts Medicare assignmentMIPS score (2024): 26.1/100Graduated 1997MaleOther offices in Tucson: 2Drug and device company payments (2025): $937Edmund Krasinski Jr., DO
✓ Accepts Medicare assignmentMIPS score (2024): 25.9/100Graduated 1988 · College of Osteo Med of the Pacific at PomonaMaleOther offices in Tucson: 1Frederick A. Klein, MD
✓ Accepts Medicare assignmentMIPS score (2024): 22.5/100Graduated 1980 · Northwestern University Feinberg Medical SchoolMaleOther offices in Tucson: 2Drug and device company payments (2025): $917Larissa M. Allen, MD
✓ Accepts Medicare assignmentMIPS score (2024): 22.3/100Graduated 2008 · University of Arizona College of MedicineFemaleOther offices in Tucson: 2Drug and device company payments (2025): $635Gebran Abboud, MD
✓ Accepts Medicare assignmentGraduated 2004MaleOther offices in Tucson: 1Drug and device company payments (2025): $118Miguel Arenas, MD
✓ Accepts Medicare assignmentGraduated 2007MaleDrug and device company payments (2025): $1,783Yucel Aydin, MD
✓ Accepts Medicare assignmentGraduated 2006MaleOther offices in Tucson: 1Drug and device company payments (2025): $190Navin V. Barot, MD
✓ Accepts Medicare assignmentGraduated 1985MaleKristen M. Barrett, MD
✓ Accepts Medicare assignmentGraduated 2011FemaleOther offices in Tucson: 1Drug and device company payments (2025): $101Anas Bitar, MD
✓ Accepts Medicare assignmentGraduated 2007MaleOther offices in Tucson: 1Drug and device company payments (2025): $238Shivanand Bomman, MD
✓ Accepts Medicare assignmentGraduated 2007MaleOther offices in Tucson: 1Drug and device company payments (2025): $360Cristiana Bortuzzo, MD
✓ Accepts Medicare assignmentGraduated 1986FemaleOther offices in Tucson: 2Drug and device company payments (2025): $1,331Jama M. Darling, MD
✓ Accepts Medicare assignmentGraduated 1996 · University of Tennessee, HSC, College of MedicineFemaleFadi Deeb, MD
✓ Accepts Medicare assignmentGraduated 1990MaleOther offices in Tucson: 3Drug and device company payments (2025): $3,189Michele K. Dodman, DO
✓ Accepts Medicare assignmentGraduated 1988FemaleOther offices in Tucson: 1Drug and device company payments (2025): $187Hemanth K. Gavini, MD
✓ Accepts Medicare assignmentGraduated 1995MaleDrug and device company payments (2025): $285Gary P. Gottlieb, MD
✓ Accepts Medicare assignmentGraduated 1973 · Temple University School of MedicineMaleOther offices in Tucson: 3Drug and device company payments (2025): $951Craig G. Gross, MD
✓ Accepts Medicare assignmentGraduated 1991MaleDrug and device company payments (2025): $3,250Anis Hanna, MD
✓ Accepts Medicare assignmentGraduated 1995MaleOther offices in Tucson: 1Drug and device company payments (2025): $2,838Bassel Kisso, MD
✓ Accepts Medicare assignmentGraduated 2000MaleOther offices in Tucson: 3Drug and device company payments (2025): $2,433Rolando Leal, MD
✓ Accepts Medicare assignmentGraduated 1985MaleDrug and device company payments (2025): $382Bechara Mezher, MD
✓ Accepts Medicare assignmentGraduated 1992MaleOther offices in Tucson: 3Drug and device company payments (2025): $2,360Murray Orbuch, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1987MaleOther offices in Tucson: 2Drug and device company payments (2025): $5,673Bhupesh Pokhrel, MD
✓ Accepts Medicare assignmentGraduated 2004MaleOther offices in Tucson: 2Drug and device company payments (2025): $1,211Diane Rodden, MD
✓ Accepts Medicare assignmentGraduated 2019 · Tulane University School of MedicineFemaleOther offices in Tucson: 1Drug and device company payments (2025): $131Sylvain Sidi, MD
✓ Accepts Medicare assignmentGraduated 1972MaleDrug and device company payments (2025): $21Erin K. Spengler, MD
✓ Accepts Medicare assignmentGraduated 2009 · University of Iowa, RJ & L Carver College of MedicineFemaleSasha Taleban, MD
✓ Accepts Medicare assignmentGraduated 2006 · University of Washington School of MedicineMaleOther offices in Tucson: 3Drug and device company payments (2025): $136Kavitha Waggoner, DO
✓ Accepts Medicare assignmentGraduated 2008 · University of New England, College of Osteo MedicineFemaleOther offices in Tucson: 2Drug and device company payments (2025): $327Shahid Habib, MD
May accept assignmentGraduated 1987MaleOther offices in Tucson: 1Drug and device company payments (2025): $38
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 Tucson
- Primary care doctors708
- Geriatricians7
- Nurse practitioners1,158
- Cardiologists100
- Dermatologists59
- Orthopedic surgeons80
- Neurologists92
- Ophthalmologists71
- Optometrists86
- Podiatrists44
- Urologists39
- Pulmonologists41
- Nephrologists42
- Endocrinologists20
- Rheumatologists23
- ENT doctors32
- Oncologists43
- Psychiatrists101
- Psychologists73
- Therapists and counselors315
- Physical therapists350
- Occupational therapists26
- Speech therapists15
- Audiologists35
- Chiropractors53
- Gynecologists80
- General surgeons77
- Vascular surgeons20
- Pain management doctors26
- Physiatrists18
- Allergists12
- Sleep medicine doctors5
- Dietitians65
- Neurosurgeons28
- Infectious disease doctors28
Other care in Tucson
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
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).