SIERRA INFECTIOUS DISEASES A PROFESSIONAL MEDICAL CORPORATION
NPI 1629185418
Internal Medicine - Infectious Disease in Fair Oaks, CA
About Sierra Infectious Diseases A Professional Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIERRA INFECTIOUS DISEASES A PROFESSIONAL MEDICAL CORPORATION (NPI 1629185418) is a healthcare organization registered as an infectious disease in Fair Oaks, California and active in the NPI registry since August 2006. The organization holds a CLIA Waiver certificate valid through December 30, 2027 and lists Elizabeth J Kailath, Physician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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)
Sierra Infectious Diseases A Professional Medical Corporation 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 Sierra Infectious Diseases A Professional Medical Corporation, 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.
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 05D0671388
Sierra Infectious Diseases, A Professional Medical Corporation · Fair Oaks, 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 Sierra Infectious Diseases A Professional Medical Corporation's NPI number?
The NPI number for Sierra Infectious Diseases A Professional Medical Corporation is 1629185418. It was assigned to this organization in the NPPES registry on August 25, 2006.
Where is Sierra Infectious Diseases A Professional Medical Corporation located?
Sierra Infectious Diseases A Professional Medical Corporation is located at 6614 Mercy Ct Suite A, Fair Oaks, CA 95628. The listed phone number is (916) 536-1136.
What is Sierra Infectious Diseases A Professional Medical Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Sierra Infectious Diseases A Professional Medical Corporation enrolled in Medicare?
Yes. Sierra Infectious Diseases A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Sierra Infectious Diseases A Professional Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Sierra Infectious Diseases A Professional Medical Corporation. 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.
Does Sierra Infectious Diseases A Professional Medical Corporation hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D0671388) is associated with this NPI, valid through December 30, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Sierra Infectious Diseases A Professional Medical Corporation was last updated on November 26, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Sierra Infectious Diseases A Professional Medical Corporation · NPI 1629185418
Infectious Disease organization in Fair Oaks, California. Organization record, active in the CMS NPPES registry since August 25, 2006.
## Identity
- **NPI:** 1629185418 (Entity type: Organization)
- **Enumerated:** August 25, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **Organization subpart:** No
- **Authorized official:** Elizabeth Kailath, PHYSICIAN
## Practice location
- **Address:** 6614 MERCY CT, SUITE A, Fair Oaks, CA 95628-3167
- **Phone:** (916) 536-1136 · **Fax:** (916) 536-1148
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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:** November 26, 2014
- **Other identifiers:** Medicare PIN ZZZ28222Z (CA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1629185418) · Data from the CMS NPPES public registry.