Quick answers
- Where does David H. Nguyen see patients?
- Medicare's clinician data lists 2 practice locations, including Lancaster, CA and Valencia, CA. Call before your visit to confirm the address.
- What is David H. Nguyen's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does David H. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says David H. Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for David H. Nguyen?
- (800) 967-2289, as listed in official Medicare / NPI Registry data.
- What is David H. Nguyen's NPI number?
- 1811042344. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where David H. Nguyen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1600 W Ave JLancaster, CA 93534 (800) 967‑2289
- 26357 McBean Pkwy, Suite 380Valencia, CA 91355 (661) 222‑2600
Group practices
Medicare enrollment lists David H. Nguyen as a member of these groups (CMS data updated 2026-10-02).
- Providence Facey Medical Foundation385 clinicians in the group
- Obhg California PC94 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811042344 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians