CARE FIRST MEDICAL GROUP INC
NPI 1538831235
Internal Medicine - Endocrinology, Diabetes & Metabolism in Westminster, CA
About Care First Medical Group Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARE FIRST MEDICAL GROUP INC (NPI 1538831235) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Westminster, California and active in the NPI registry since September 2021. The organization lists Andy Nguyen, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 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)
Care First Medical Group 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 Care First Medical Group 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 Care First Medical Group Inc's NPI number?
The NPI number for Care First Medical Group Inc is 1538831235. It was assigned to this organization in the NPPES registry on September 30, 2021.
Where is Care First Medical Group Inc located?
Care First Medical Group Inc is located at 9211 Bolsa Ave Ste 221, Westminster, CA 92683. The listed phone number is (714) 898-9966.
What is Care First Medical Group Inc's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Care First Medical Group Inc enrolled in Medicare?
Yes. Care First Medical Group Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Care First Medical Group Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Endocrinology) reassigns their Medicare billing to Care First Medical Group 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 Care First Medical Group Inc was last updated on January 24, 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.
# Care First Medical Group Inc · NPI 1538831235
Endocrinology, Diabetes & Metabolism organization in Westminster, California. Organization record, active in the CMS NPPES registry since September 30, 2021.
## Identity
- **NPI:** 1538831235 (Entity type: Organization)
- **Enumerated:** September 30, 2021
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **Organization subpart:** No
- **Authorized official:** Andy Nguyen, CFO
## Practice location
- **Address:** 9211 BOLSA AVE STE 221, Westminster, CA 92683-5571
- **Phone:** (714) 898-9966
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Endocrinology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 24, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1538831235) · Data from the CMS NPPES public registry.