WILLIAM HWANG DDS INC
NPI 1407578370
Clinic/Center - Dental in Santa Ana, CA
About William Hwang Dds Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM HWANG DDS INC (NPI 1407578370), doing business as Fairview Dental, is a healthcare organization registered as a dental in Santa Ana, California and active in the NPI registry since September 2022. The organization lists William Hwang, Dentist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Hwang Dds Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to William Hwang DDS Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 William Hwang Dds Inc's NPI number?
The NPI number for William Hwang Dds Inc is 1407578370. It was assigned to this organization in the NPPES registry on September 16, 2022. The provider is doing business as Fairview Dental.
Where is William Hwang Dds Inc located?
William Hwang Dds Inc is located at 2800 W Warner Ave Ste G, Santa Ana, CA 92704. The listed phone number is (714) 549-2135.
What is William Hwang Dds Inc's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Dental, with taxonomy code 261QD0000X.
Is William Hwang Dds Inc enrolled in Medicare?
Yes. William Hwang Dds Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through William Hwang Dds Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dentist) reassigns their Medicare billing to William Hwang Dds Inc. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for William Hwang Dds Inc was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# William Hwang Dds Inc · NPI 1407578370
Dental organization in Santa Ana, California. Organization record, active in the CMS NPPES registry since September 16, 2022.
## Identity
- **NPI:** 1407578370 (Entity type: Organization)
- **Enumerated:** September 16, 2022
- **Primary specialty:** Clinic/Center - Dental · taxonomy 261QD0000X
- **Also known as:** Fairview Dental (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** William Hwang, DENTIST
## Practice location
- **Address:** 2800 W WARNER AVE STE G, Santa Ana, CA 92704-5466
- **Phone:** (714) 549-2135
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Dentist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1407578370) · Data from the CMS NPPES public registry.