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

Harry Nguyen, DO

Individual provider Internal Medicine Physician · NPI 1003277930

Harry Nguyen, DO is a Gastroenterology in Orange, California. Graduated from Nova Southeastern College of Osteo Medicine in 2016, 10 years ago. Practices with Uc Regents, a 306-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
10
Trained at
Nova Southeastern College of Osteo Medicine
Licensed in
CA
In the registry since
2016
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.

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Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-7002
Show map & directions

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

Specialties & licences

Hepatology Physician (primary) Taxonomy 207RI0008X · Licence 20A21145 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 20A21145 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 20A21145 (CA)

Record details

NPI number1003277930
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 20, 2016
Last updated in NPPESJanuary 23, 2025
Certification dateJanuary 23, 2025
Mailing address101 The City Dr S Bldg 22c, Orange, CA 92868-3201

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolNOVA SOUTHEASTERN COLLEGE OF OSTEO MEDICINE
Graduated 2016 (10 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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