Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Prof. David J Tweardy, MD

Individual provider Infectious Disease Physician · NPI 1720168065

Prof. David J Tweardy, MD is an Infectious Disease in Houston, Texas. Graduated from Harvard Medical School in 1978, 48 years ago. Practices with Physicians Referral Service, a 2,727-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
48
Trained at
Harvard Medical School
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1515 Holcombe Blvd
Houston, TX 77030-4009
Phone: (713) 792-6161
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence L0668 (TX)

Record details

NPI number1720168065
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 17, 2006
Last updated in NPPESJanuary 28, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1978 (48 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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