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Gastroenterologists who accept Medicare in Katy, TX
CMS lists 21 clinicians in this specialty with a practice address in Katy. Accept Medicare assignment (the Medicare-approved amount as full payment): 21. Offer telehealth: 15.
Typical amounts Medicare approves in ZIP 77494 (2024 Medicare rates, the latest CMS has published): a new-patient visit $126, of which you pay about $32; 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.
Dharmendra Verma, MD
✓ Accepts Medicare assignmentMIPS score (2024): 99.4/100✓ TelehealthGraduated 2000MaleOther offices in Katy: 1Drug and device company payments (2025): $1,305Muhammad Ali Khan, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.3/100✓ TelehealthGraduated 2008MaleDrug and device company payments (2025): $73Sushovan Guha, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.1/100✓ TelehealthGraduated 1988MaleDrug and device company payments (2025): $6,223Vivian A. Asamoah, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2001FemaleDrug and device company payments (2025): $10,619Oforbuike C. Ewelukwa, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100Graduated 2005MaleDrug and device company payments (2025): $1,213Sameer Siddique, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 2001MaleDrug and device company payments (2025): $178Radha A. Tamerisa, MD
✓ Accepts Medicare assignmentMIPS score (2024): 75/100✓ TelehealthGraduated 1997FemaleDrug and device company payments (2025): $24,971Ihsan A. Al Bayati, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2007MaleDrug and device company payments (2025): $1,334Murtaza Arif, MD
✓ Accepts Medicare assignmentGraduated 2000MaleDrug and device company payments (2025): $336Abraham P. Chacko, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010 · Philadelphia College of Osteopathic MedicineMaleDrug and device company payments (2025): $879Rishi Chadha, MD
✓ Accepts Medicare assignmentGraduated 2019 · F H Netter, M.D. School of Med at Quinnipiac UnivMaleDrug and device company payments (2025): $509Diana L. Franco Corso, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2009FemaleDrug and device company payments (2025): $365Shawn Gurwara, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016 · Louisiana State University School of Medicine in New OrleansMaleDrug and device company payments (2025): $1,194Andrzej J. Janecki, MD
✓ Accepts Medicare assignmentGraduated 1977MaleDrug and device company payments (2025): $243Richard G. Lacamera, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1991 · University of Florida College of MedicineMaleDrug and device company payments (2025): $401Spencer C. Li, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1987 · University of Texas Medical Branch at GalvestonMaleDrug and device company payments (2025): $588Kevin T. Marks, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2000 · Meharry Medical College School of MedicineMaleDrug and device company payments (2025): $2,279Natalia Martin, DO
✓ Accepts Medicare assignmentGraduated 2020 · Nova Southeastern College of Osteo MedicineFemaleDrug and device company payments (2025): $387Thien-Bao P. Nguyen, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2018 · Baylor College of MedicineMaleDrug and device company payments (2025): $1,285Ahana Sen, MD
✓ Accepts Medicare assignmentGraduated 2016 · New York University School of MedicineFemaleDrug and device company payments (2025): $646Adrianne Van Norman, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2016 · University of North Texas HSC, College of Osteopathic MedFemaleDrug and device company payments (2025): $1,418
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 Katy
- Primary care doctors192
- Nurse practitioners342
- Cardiologists45
- Dermatologists22
- Orthopedic surgeons23
- Neurologists25
- Ophthalmologists16
- Optometrists71
- Podiatrists16
- Urologists17
- Pulmonologists6
- Nephrologists11
- Endocrinologists18
- Rheumatologists9
- ENT doctors12
- Oncologists7
- Psychiatrists23
- Psychologists9
- Therapists and counselors53
- Physical therapists88
- Occupational therapists25
- Speech therapists15
- Audiologists11
- Chiropractors23
- Gynecologists32
- General surgeons14
- Vascular surgeons5
- Pain management doctors4
- Physiatrists12
- Allergists10
- Dietitians6
- Neurosurgeons11
- Infectious disease doctors4
Other care in Katy
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).