JAMES G. KALKANIS, MD A MEDICAL CORPORATION
NPI 1376709352
Otolaryngology in Corona, CA
About James G. Kalkanis, Md A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES G. KALKANIS, MD A MEDICAL CORPORATION (NPI 1376709352) is a healthcare organization registered as an otolaryngology in Corona, California and active in the NPI registry since July 2008. The organization lists James George Kalkanis, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 1
Group Practice 1
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)
James G. Kalkanis, Md A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by December 31, 2026
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 James G. Kalkanis, MD A 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.
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 James G. Kalkanis, MD A Medical Corporation's NPI number?
The NPI number for James G. Kalkanis, MD A Medical Corporation is 1376709352. It was assigned to this organization in the NPPES registry on July 30, 2008.
Where is James G. Kalkanis, MD A Medical Corporation located?
James G. Kalkanis, MD A Medical Corporation is located at 341 Magnolia Ave Suite 206, Corona, CA 92879. The listed phone number is (951) 735-0470.
What is James G. Kalkanis, MD A Medical Corporation's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is James G. Kalkanis, MD A Medical Corporation enrolled in Medicare?
Yes. James G. Kalkanis, MD A Medical Corporation is registered in the Medicare PECOS enrollment system.
When is James G. Kalkanis, MD 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 December 31, 2026. 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 James G. Kalkanis, MD A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Otolaryngology) reassigns their Medicare billing to James G. Kalkanis, MD A 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.
When was this NPI record last updated?
The NPPES record for James G. Kalkanis, MD A Medical Corporation was last updated on March 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# James G. Kalkanis, Md A Medical Corporation · NPI 1376709352
Otolaryngology organization in Corona, California. Organization record, active in the CMS NPPES registry since July 30, 2008.
## Identity
- **NPI:** 1376709352 (Entity type: Organization)
- **Enumerated:** July 30, 2008
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **Organization subpart:** No
- **Authorized official:** James Kalkanis, OWNER
## Practice location
- **Address:** 341 MAGNOLIA AVE, SUITE 206, Corona, CA 92879-3332
- **Phone:** (951) 735-0470 · **Fax:** (951) 735-2842
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** December 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Otolaryngology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 21, 2012
- **Other identifiers:** Medicare UPIN H67677 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1376709352) · Data from the CMS NPPES public registry.