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L.T. DUONG, M.D., INC.
NPI 1467762294
Family Medicine in Santa Ana, CA

Active since October 14, 2010CLIA 05D2008726 · Waiver
2708 WESTMINSTER AVE STE 110, SANTA ANA, CA 92706(714) 554-7350(714) 554-7481 Get Directions Write a Review

NPPES record last updated: August 2, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About L.t. Duong, M.d., Inc. NPPES

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

L.T. DUONG, M.D., INC. (NPI 1467762294) is a healthcare organization registered as a family medicine in Santa Ana, California and active in the NPI registry since October 2010. The organization holds a CLIA Waiver certificate valid through June 15, 2028 and lists Long Thanh Duong, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1467762294
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameL.T. DUONG, M.D., INC.
Location Address2708 WESTMINSTER AVE STE 110Santa Ana, CA 92706-2192
Mailing Address2708 Westminster Ave Ste 110Santa Ana, CA 92706-2192 · (714) 554-7350 · Fax (714) 554-7481
Phone(714) 554-7350
Fax(714) 554-7481
Organization SubpartNo
Authorized OfficialLong Thanh DuongMedical Director · (714) 554-7350
Enumeration DateOctober 14, 2010
Last NPPES UpdateAugust 2, 2022
NPPES CertifiedAugust 2, 2022
✔ NPI 1467762294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A74045
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
2708 WESTMINSTER AVE STE 110, Santa Ana, CA 92706
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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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

L.t. Duong, M.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to L.T. Duong, M.D., Inc., which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Long Duong, M.D.
Family Practice
NPI 1538257241
2708 WESTMINSTER AVE STE 110
Santa Ana, CA 92706
(714) 554-7350
✔ PECOS✔ Accepts MedicareSame address
Mary Phan, FNP-BC
Nurse Practitioner
NPI 1588553994
2708 WESTMINSTER AVE STE 130
Santa Ana, CA 92706
(714) 554-7350
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2008726

Lt Duong MD Inc · Santa Ana, CA
Active · expires Jun 15, 2028
CLIA Number05D2008726
Laboratory TypePhysician Office
Certificate Effective DateJune 16, 2026
Certificate Expiration DateJune 15, 2028
Laboratory DirectorLong Nt Duong
Laboratory Phone(714) 554-7350
Laboratory LocationLt Duong MD Inc2708 Westminster Ave, #110, Santa Ana, CA 92706
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

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 L.T. Duong, M.D., Inc.'s NPI number?

The NPI number for L.T. Duong, M.D., Inc. is 1467762294. It was assigned to this organization in the NPPES registry on October 14, 2010.

Where is L.T. Duong, M.D., Inc. located?

L.T. Duong, M.D., Inc. is located at 2708 Westminster Ave Ste 110, Santa Ana, CA 92706. The listed phone number is (714) 554-7350.

What is L.T. Duong, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is L.T. Duong, M.D., Inc. enrolled in Medicare?

Yes. L.T. Duong, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through L.T. Duong, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to L.T. Duong, M.D., Inc., in Family Practice and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does L.T. Duong, M.D., Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2008726) is associated with this NPI, valid through June 15, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for L.T. Duong, M.D., Inc. was last updated on August 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.