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

Diane Duyen T Nguyen, DO

Individual provider Hematology & Oncology Physician · NPI 1023233756

Diane Duyen T Nguyen, DO is a Medical Oncology in McAllen, Texas. Graduated from West Virginia School of Osteopathic Medicine in 2001, 25 years ago. Practices with The University of Texas Rio Grande Valley, a 83-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Tennessee and Texas.

Years since qualifying
25
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
TN, TX
In the registry since
2007
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

205 E Toronto Ave
McAllen, TX 78503-1209
Phone: (956) 296-3990
Fax: (956) 665-6837
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 27700 Northwest Fwy Ste 580, Cypress, TX 77433-6766 — (832) 791-5530
  • 602 Indiana Ave, Lubbock, TX 79415-3364 — (806) 775-8600

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence M3045 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence DO1698 (TN)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence M3045 (TX)

Record details

NPI number1023233756
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 16, 2007
Last updated in NPPESOctober 3, 2024
Certification dateOctober 3, 2024

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2001 (25 years in practice)
Group practice The University Of Texas Rio Grande Valley — 83 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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