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

Long T. Nguyen, MD

Individual provider Emergency Medicine Physician · NPI 1811956006

Long T. Nguyen, MD is an Internal Medicine in Oklahoma City, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1995, 31 years ago. Practices with Transitional Care Organization LLC, an 11-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
31
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2006
Specialties on file
2
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

3300 NW Expy
Oklahoma City, OK 73112-4418
Phone: (405) 713-7403
Fax: (405) 713-2794
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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 20102 (OK)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 20102 (OK)

Record details

NPI number1811956006
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 17, 2006
Last updated in NPPESJuly 20, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Transitional Care Organization Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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