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

Dr. Dat Tien Nguyen, MD

Individual provider Specialist · NPI 1659346435

Dr. Dat Tien Nguyen, MD is a Colorectal Surgery (Proctology) in Modesto, California. Graduated from University of Minnesota Medical School in 1990, 36 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Trained at
University of Minnesota Medical School
Licensed in
CA
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

4601 Dale Rd
Modesto, CA 95356-9718
Phone: (209) 735-4385
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence G75447 (CA)

Record details

NPI number1659346435
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESJanuary 10, 2022

Medicare enrollment

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

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Also practisesGENERAL SURGERY, SURGICAL ONCOLOGY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1990 (36 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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