BAYARD W. CHANG, MD, INC
NPI 1619062973
Clinic/Center - Primary Care in Sacramento, CA
About Bayard W. Chang, Md, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BAYARD W. CHANG, MD, INC (NPI 1619062973) is a healthcare organization registered as a primary care in Sacramento, California and active in the NPI registry since October 2006. The organization lists Bayard Won Chang, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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)
Bayard W. Chang, Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 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
Medicare enrollment records show 1 clinician reassigns Medicare billing to Bayard W. Chang, MD, 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 Bayard W. Chang, MD, Inc's NPI number?
The NPI number for Bayard W. Chang, MD, Inc is 1619062973. It was assigned to this organization in the NPPES registry on October 4, 2006.
Where is Bayard W. Chang, MD, Inc located?
Bayard W. Chang, MD, Inc is located at 500 University Ave Ste 111, Sacramento, CA 95825. The listed phone number is (916) 929-2526.
What is Bayard W. Chang, MD, Inc's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Bayard W. Chang, MD, Inc enrolled in Medicare?
Yes. Bayard W. Chang, MD, Inc is registered in the Medicare PECOS enrollment system.
When is Bayard W. Chang, MD, Inc'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 February 28, 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 Bayard W. Chang, MD, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Bayard W. Chang, MD, 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 Bayard W. Chang, MD, Inc was last updated on January 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Bayard W. Chang, Md, Inc · NPI 1619062973
Primary Care organization in Sacramento, California. Organization record, active in the CMS NPPES registry since October 4, 2006.
## Identity
- **NPI:** 1619062973 (Entity type: Organization)
- **Enumerated:** October 4, 2006
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Bayard Chang, PRESIDENT
## Practice location
- **Address:** 500 UNIVERSITY AVE STE 111, Sacramento, CA 95825-6504
- **Phone:** (916) 929-2526 · **Fax:** (916) 929-6128
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 25, 2008
- **Other identifiers:** Medicare ID-Type Unspecified ZZZ31835Z (CA); Medicare UPIN F02367 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1619062973) · Data from the CMS NPPES public registry.