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

Longhang Nguyen, MD

Individual provider Internal Medicine Physician · NPI 1194894550

Longhang Nguyen, MD is an Internal Medicine in Sunnyvale, California. Graduated from University of California, San Francisco School of Medicine in 1997, 29 years ago. Practices with One Medical Group Inc, a 328-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
29
Trained at
University of California, San Francisco School of Medicine
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

312 W El Camino Real
Sunnyvale, CA 94087-1306
Phone: (888) 663-6331
Fax: (415) 252-7176
Show map & directions

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

Additional practice locations (1)

  • 1299 Oakmead Pkwy, Sunnyvale, CA 94085-4040 — (408) 520-4510

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A67978 (CA)

Record details

NPI number1194894550
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 7, 2006
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice One Medical Group Inc — 328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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