Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Cornelia W. Tan, MD

Individual provider Internal Medicine Physician · NPI 1316948391

Cornelia W. Tan, MD practises Internal Medicine in Dallas, Texas. Graduated from University of Texas Medical School at Houston in 1991, 35 years ago. Practices with Dallas County Hospital District, a 598-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
35
Trained at
University of Texas Medical School at Houston
Licensed in
TX
In the registry since
2005
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

303 E Overton Rd
Dallas, TX 75216-5946 Not confirmed with CMS for 13 years — call before visiting
Phone: (214) 266-4200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence J2363 (TX)

Record details

NPI number1316948391
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 2, 2005
Last updated in NPPESDecember 4, 2012

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 1991 (35 years in practice)
Group practice Dallas County Hospital District — 598 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients119
Services billed 249 a service is one billed item, such as a visit, a test or a procedure
Average patient age65

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Dallas County Hospital District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 598 clinicians in the practice; 12 are shown here.

Other providers in Dallas