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Allergy & Immunology (Internal Medicine) in Houston, Texas

Data updated monthly · Last refresh September 2026

18 Allergy & Immunology (Internal Medicine) providers practice in Houston. Listings are drawn from federal public records and are not endorsements.

Allergy & Immunology (Internal Medicine) providers in Houston

Listed alphabetically. 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. Albert Wu, MD
Houston, TX · $177 in drug and device payments (2025) · (713) 442-0000
Dr. Christopher Codispoti, MD, PHD
Houston, TX · $1,767 in drug and device payments (2025) · (713) 486-0340
Dr. David Huston, M.D.
Houston, TX · $114 in drug and device payments (2025) · (713) 441-0006
Dr. Ekta Perera, MD
Houston, TX · $63,390 in drug and device payments (2025) · Telehealth · (713) 500-6876
Dr. Johnny Nguyen, DO
Houston, TX · $448 in drug and device payments (2025) · (832) 688-9463
Dr. Julie Patel, M.D.
Houston, TX · $2,092 in drug and device payments (2025) · Telehealth · (713) 790-0900
Dr. Mahboobeh Mahdavinia
Houston, TX · $14,012 in drug and device payments (2025) · Telehealth · (713) 486-0340
Dr. Muhammad Imran, MD
Houston, TX · $863 in drug and device payments (2025) · (832) 648-7779
Dr. Pankaj Shah, M.D.
Houston, TX · $511 in drug and device payments (2025) · (713) 541-6700
Dr. Sadhana Balasubramanyam, MD
Houston, TX · $7,617 in drug and device payments (2025) · Telehealth · (713) 441-4447
Dr. Saffana Hassan, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 869-4405
Dr. Sana Hasan, M.D.
Houston, TX · $19 in drug and device payments (2025) · (713) 500-6525
Dr. Sanjiv Sur, MD
Houston, TX · $285 in drug and device payments (2025) · Telehealth · (713) 873-8890
Dr. Sara Anvari, M.D.
Houston, TX · $7,229 in drug and device payments (2025) · (832) 824-1319
Dr. Sarah Nicholas, MD
Houston, TX · $6,165 in drug and device payments (2025) · (832) 824-1000
Dr. Sebastian Ochoa Gonzalez, M.D.
Houston, TX · $169 in drug and device payments (2025) · (832) 822-2096
Dr. Thomas Woehler, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 862-6888
Dr. Xuesong Chen, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 791-1414

Common questions

How many Allergy & Immunology (Internal Medicine) providers are in Houston, Texas?

There are 18 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in Houston, according to federal NPPES data refreshed monthly.

Where does this data come from?

Provider records 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.

All specialties in Houston Allergy & Immunology (Internal Medicine) across Texas

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.