HEALTH ALLIANCE MEDICAL GROUP
NPI 1124248570
Clinic/Center - Primary Care in Hacienda Heights, CA
About Health Alliance Medical Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HEALTH ALLIANCE MEDICAL GROUP (NPI 1124248570) is a healthcare organization registered as a primary care in Hacienda Heights, California and active in the NPI registry since April 2007. The organization holds a CLIA Waiver certificate valid through May 16, 2028, maintains a secondary practice location in Monterey Park, and lists William Shun Tzeng, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Health Alliance Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Health Alliance Medical Group, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
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 05D0886403
Health Alliance Medical Group · Hacienda Heights, CAFrequently 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 Health Alliance Medical Group's NPI number?
The NPI number for Health Alliance Medical Group is 1124248570. It was assigned to this organization in the NPPES registry on April 26, 2007.
Where is Health Alliance Medical Group located?
Health Alliance Medical Group is located at 17170 Colima Rd Ste G, Hacienda Heights, CA 91745. The listed phone number is (626) 965-8202.
What is Health Alliance Medical Group's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Health Alliance Medical Group enrolled in Medicare?
Yes. Health Alliance Medical Group is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Health Alliance Medical Group?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Health Alliance Medical Group. 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, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Health Alliance Medical Group hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D0886403) is associated with this NPI, valid through May 16, 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 Health Alliance Medical Group was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Health Alliance Medical Group · NPI 1124248570
Primary Care organization in Hacienda Heights, California. Organization record, active in the CMS NPPES registry since April 26, 2007.
## Identity
- **NPI:** 1124248570 (Entity type: Organization)
- **Enumerated:** April 26, 2007
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** William Tzeng, CEO
## Practice location
- **Address:** 17170 COLIMA RD STE G, Hacienda Heights, CA 91745-6771
- **Phone:** (626) 965-8202 · **Fax:** (626) 964-9893
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Internal Medicine) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 2, 2026
- **Other identifiers:** Other W11601 (CA); Medicaid GR0050620 (CA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1124248570) · Data from the CMS NPPES public registry.