Hematologists (Internal Medicine) in Texas
Data updated monthly · Last refresh October 2026
72 Hematology (Internal Medicine) providers practice in Texas, including 32 (44%) offering telehealth. The largest concentration is in Houston. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
72providers
32telehealth
Houstontop city
Hematology (Internal Medicine) by city in Texas
Choose a city to see providers there.
Where Hematologists (Internal Medicine) in Texas practice
From CMS Medicare enrollment records covering 52 of the 72 providers listed here (72%). Providers who do not bill Medicare are not included in these figures.
8%solo or small practice (under 10 clinicians)
2%mid-size group (10 to 99)
90%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Hematologists (Internal Medicine) | All clinicians in group | Main city |
| Physicians Referral Service | 19 | 2,728 | Houston |
| University of Texas Southwestern Medical Center at Dallas | 6 | 3,156 | Dallas |
| Ut Physicians | 4 | 1,744 | Houston |
| University of Texas Health Science Center at San Antonio | 4 | 1,290 | San Antonio |
| Tmh Physician Associates PLLC | 3 | 1,881 | Houston |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Hematologists (Internal Medicine) affiliated |
| Ut of Texas Southwestern University Hospital - William P. Clements Jr. | Dallas | Government | 4 of 5 | 5 |
| Houston Methodist Hospital | Houston | Nonprofit | 5 of 5 | 5 |
| Parkland Health & Hospital System | Dallas | Government | 3 of 5 | 4 |
| Ut Health San Antonio Multispecialty & Research Ho | San Antonio | Government | Not rated | 4 |
| Memorial Hermann - Texas Medical Center | Houston | Nonprofit | 4 of 5 | 4 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Hematology (Internal Medicine) providers in Texas
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Aimaz Afrough, M.D.Dallas, TX · $2,969 in drug and device payments (2025) · Telehealth ·
(214) 633-5555 Dr. Alecia Nero, M.D.Dallas, TX · No drug or device payments recorded (2025) ·
(214) 648-4180 Dr. Ameen Salahudeen, M.D.Dallas, TX · $1,827 in drug and device payments (2025) · Telehealth ·
(214) 590-8058 Dr. Ateefa Chaudhury, M.D.Dallas, TX · $2,345 in drug and device payments (2025) ·
(214) 645-4673 Dr. Jean-antoine Ribeil, MD, PHDDallas, TX · $3,087 in drug and device payments (2025) ·
(214) 645-4673 Dr. Natalie Bavli, M.D.Dallas, TX · No drug or device payments recorded (2025) · Telehealth ·
(214) 645-2800 Dr. Navid Sadeghi, MD, MS, FACPDallas, TX · No drug or device payments recorded (2025) ·
(214) 645-4673 Dr. Taha Bat, MDDallas, TX · $10,701 in drug and device payments (2025) · Telehealth ·
(214) 645-2800 Dr. Vanessa Ortiz, MDDallas, TX · No drug or device payments recorded (2025) ·
(972) 566-5588 Dr. Mary Ann Skiba, D.O.Fort Worth, TX · $1,459 in drug and device payments (2025) · Telehealth ·
(817) 759-7000 Dr. Nisar Ahmad, M.D.Harlingen, TX · No drug or device payments recorded (2025) · Telehealth ·
(956) 364-2131 Dr. Alexandre Bazinet, MDHouston, TX · $300 in drug and device payments (2025) ·
(713) 792-6161 Dr. Alex Bataller Torralba, MD, PHDHouston, TX · $152 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Audrey Scholoff, NPHouston, TX · No drug or device payments recorded (2025) ·
(713) 441-1450 Dr. Caroline Arber Barth, M.D. Dr. Curtis Marcoux, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 792-2466 Dr. David Marin Costa, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 792-6161 Dr. Edward Lynch, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 441-4489 Dr. Effrosyni Apostolidou, MD, PHDHouston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 792-6161 Dr. Eitan Kugler, MD PHDHouston, TX · $126 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Ethan Natelson, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 441-5154 Dr. George Carrum, MDHouston, TX · $212 in drug and device payments (2025) ·
(713) 441-1450 Dr. George Chen, MDHouston, TX · $1,522 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Gregory Kaufman, MDHouston, TX · No drug or device payments recorded (2025) · Telehealth ·
(713) 792-6161 Dr. Guillaume Richard-carpentier, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 563-2742 Dr. Harish Eswaran, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 500-8360 Dr. Jayastu Senapati, MD, DMHouston, TX · $263 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Jenny Petkova, MDHouston, TX · $728 in drug and device payments (2025) · Telehealth ·
(713) 865-1410 Dr. Jing Ye, MDHouston, TX · $8,700 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Joe Moake, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 798-2250 Dr. Johnathan Fraebel, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 798-3750 Dr. Kelty Baker, MDHouston, TX · $7,844 in drug and device payments (2025) · Telehealth ·
(713) 797-0466 Dr. Lawrence Rice, M.D.Houston, TX · $24,098 in drug and device payments (2025) ·
(713) 441-0006 Dr. Ludovica Marando, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 873-8890 Dr. Maida Riva JamirHouston, TX · $171 in drug and device payments (2025) · Telehealth ·
(713) 486-5660 Dr. Miguel Escobar, M.D.Houston, TX · $74,625 in drug and device payments (2025) ·
(832) 325-7111 Dr. Modupe Idowu, M.D.Houston, TX · $21,842 in drug and device payments (2025) ·
(713) 704-3961 Dr. Mohammad Abdulla, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 792-2860 Dr. Oren Pasvolsky, MDHouston, TX · $322 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Portia Smallbone, MDHouston, TX · $1,967 in drug and device payments (2025) ·
(713) 792-6161 Dr. Robert Bast, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 792-6161 Dr. Ryan Huey, M.D.Houston, TX · $14 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Senthil Sukumar, M.D.Houston, TX · $14,776 in drug and device payments (2025) · Telehealth ·
(713) 798-1750 Dr. Shalewa Oki, FNPHouston, TX · No drug or device payments recorded (2025) ·
(713) 441-1450 Dr. Shirley Riggs, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 529-4343 Dr. Siddhartha Ganguly, M.D.Houston, TX · $524 in drug and device payments (2025) · Telehealth ·
(713) 441-9948 Dr. Sunil Patel, M.D.Houston, TX · $120 in drug and device payments (2025) ·
(713) 442-0000 Dr. Swaminathan Iyer, M.D.Houston, TX · $13,405 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Tareq Abuasab, MDHouston, TX · $147 in drug and device payments (2025) · Telehealth ·
(832) 957-6500 Common questions
How many Hematology (Internal Medicine) providers are in Texas?There are 72 Hematology (Internal Medicine) providers with active NPI records practicing in Texas, according to federal NPPES data refreshed monthly.
Do Hematology (Internal Medicine) providers in Texas offer telehealth?Yes. 32 of the 72 Hematology (Internal Medicine) providers in Texas (about 44%) report offering telehealth services in CMS data.
Which cities in Texas have the most Hematology (Internal Medicine) providers?Houston (44), San Antonio (12), Dallas (10) have the highest concentration of Hematology (Internal Medicine) providers in Texas.
How many Hematology (Internal Medicine) providers in Texas received drug or device company payments?44 of 72 Hematology (Internal Medicine) providers in Texas (61%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Hematologists (Internal Medicine) in Texas work in independent practices or large health systems?Among 52 Hematologists (Internal Medicine) in Texas enrolled in Medicare, 8% bill through a solo or small practice with fewer than 10 clinicians, 2% through a mid-size group of 10 to 99, and 90% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists (Internal Medicine) in Texas work at?According to CMS facility affiliation records, the Texas hospitals where the most Hematologists (Internal Medicine) hold privileges are Ut of Texas Southwestern University Hospital - William P. Clements Jr. in Dallas; Houston Methodist Hospital in Houston; Parkland Health & Hospital System in Dallas.
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