EMERY L. CHEN, M.D., A MEDICAL CORPORATION
NPI 1710320429
Clinic/Center in Lancaster, CA
About Emery L. Chen, M.d., A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMERY L. CHEN, M.D., A MEDICAL CORPORATION (NPI 1710320429) is a healthcare organization registered as a clinic/center in Lancaster, California and active in the NPI registry since April 2013. The organization lists Emery Chen, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Emery L. Chen, M.d., A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Emery L. Chen, M.D., A Medical Corporation, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (4)
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 Emery L. Chen, M.D., A Medical Corporation's NPI number?
The NPI number for Emery L. Chen, M.D., A Medical Corporation is 1710320429. It was assigned to this organization in the NPPES registry on April 11, 2013.
Where is Emery L. Chen, M.D., A Medical Corporation located?
Emery L. Chen, M.D., A Medical Corporation is located at 1658 W Avenue J, Lancaster, CA 93534. The listed phone number is (661) 942-6565.
What is Emery L. Chen, M.D., A Medical Corporation's specialty?
The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.
Is Emery L. Chen, M.D., A Medical Corporation enrolled in Medicare?
Yes. Emery L. Chen, M.D., A Medical Corporation is registered in the Medicare PECOS enrollment system.
When is Emery L. Chen, M.D., A Medical Corporation's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Emery L. Chen, M.D., A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Emery L. Chen, M.D., A Medical Corporation, in Bariatric Sx, General Surgery 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 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Emery L. Chen, M.D., A Medical Corporation was last updated on April 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Emery L. Chen, M.d., A Medical Corporation · NPI 1710320429
Clinic/Center organization in Lancaster, California. Organization record, active in the CMS NPPES registry since April 11, 2013.
## Identity
- **NPI:** 1710320429 (Entity type: Organization)
- **Enumerated:** April 11, 2013
- **Primary specialty:** Clinic/Center · taxonomy 261Q00000X
- **Organization subpart:** No
- **Authorized official:** Emery Chen, PRESIDENT
## Practice location
- **Address:** 1658 W AVENUE J, Lancaster, CA 93534-2814
- **Phone:** (661) 942-6565 · **Fax:** (661) 940-1066
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 4 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Bariatric Sx (1), General Surgery (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 11, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1710320429) · Data from the CMS NPPES public registry.