YTHANH NGUYEN M.D. INC
NPI 1164965018
Internal Medicine in Upland, CA

Q: What is Ythanh Nguyen M.D. Inc's NPI number?

The NPI number for Ythanh Nguyen M.D. Inc is 1164965018. It was assigned to this organization in the NPPES registry on November 27, 2016.

Q: What is Ythanh Nguyen M.D. Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since November 27, 2016

901 SAN BERNARDINO RD, UPLAND, CA 91786(909) 579-6753 Get Directions Write a Review

NPPES record last updated: November 27, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Ythanh Nguyen M.d. Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YTHANH NGUYEN M.D. INC (NPI 1164965018) is a healthcare organization registered as an internal medicine in Upland, California and active in the NPI registry since November 2016. The organization maintains a secondary practice location in Rancho Cucamonga and lists Ythanh Duy Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1164965018

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameYTHANH NGUYEN M.D. INC

Location Address901 SAN BERNARDINO RDUpland, CA 91786-4912

Mailing Address8816 Foothill Blvd Ste 103Rancho Cucamonga, CA 91730-7199

Phone(909) 579-6753

Organization SubpartNo

Authorized OfficialYthanh Duy NguyenPresident · (562) 236-3432

Enumeration DateNovember 27, 2016

✔ NPI 1164965018 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A84989

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

901 SAN BERNARDINO RD, Upland, CA 91786

Open in Google Maps ↗

Secondary Practice Location 1

Location 18235 Rochester AveRancho Cucamonga, CA 91730-0718 · Phone (909) 484-4900 · Fax (909) 781-2949

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NAN WANG M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

901 SAN BERNARDINO RD, STE 102
UPLAND, CA 91786

San Bernardino County (909) 579-6721

SAN ANTONIO AMBULATORY SURGICAL CENTER, LLC

Clinic/Center (Ambulatory Surgical)

901 SAN BERNARDINO RD, SUITE 201
UPLAND, CA 91786

San Bernardino County (909) 579-1500

SYNERGY CARDIOTHORACIC SURGERY MEDICAL GROUP

Thoracic Surgery (Cardiothoracic Vascular Surgery)

901 SAN BERNARDINO RD, SUITE102
UPLAND, CA 91786

San Bernardino County (909) 579-6721

DONNA E DUDZIAK M.D.

Surgery

901 SAN BERNARDINO RD, STE 301
UPLAND, CA 91786

San Bernardino County (909) 946-6221

SYNERGY CT SURGERY PARTNERSHIP

Thoracic Surgery (Cardiothoracic Vascular Surgery)

901 SAN BERNARDINO RD, STE102
UPLAND, CA 91786

San Bernardino County (909) 579-6721

WALLACE GEORGE GOSNEY M.D.

Specialist

901 SAN BERNARDINO RD, STE 301
UPLAND, CA 91786

San Bernardino County (909) 946-6221

HOSSEIN SHAYAN MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

901 SAN BERNARDINO RD, STE 102
UPLAND, CA 91786

San Bernardino County (909) 579-6721

MR. CAREY A BLEDSOE DPM

Podiatrist (Foot & Ankle Surgery)

901 SAN BERNARDINO RD, SUITE 104
UPLAND, CA 91786

San Bernardino County (909) 946-6643

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ythanh Nguyen M.D. Inc's NPI number?

The NPI number for Ythanh Nguyen M.D. Inc is 1164965018. It was assigned to this organization in the NPPES registry on November 27, 2016.

Where is Ythanh Nguyen M.D. Inc located?

Ythanh Nguyen M.D. Inc is located at 901 San Bernardino Rd, Upland, CA 91786. The listed phone number is (909) 579-6753.

What is Ythanh Nguyen M.D. Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Ythanh Nguyen M.D. Inc was last updated on November 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.