PHILIP N. CHIRONIS, M.D. A MEDICAL CORPORATION
NPI 1356528012
Specialist in Newport Beach, CA
About Philip N. Chironis, M.d. A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIP N. CHIRONIS, M.D. A MEDICAL CORPORATION (NPI 1356528012) is a healthcare organization registered as a specialist in Newport Beach, California and active in the NPI registry since January 2008. The organization lists Philip N Chironis, Owner/president, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
Philip N. Chironis, M.d. A Medical Corporation 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
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Philip N. Chironis, M.D. A Medical Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (3)
Panorama City, CA 91402
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 Philip N. Chironis, M.D. A Medical Corporation's NPI number?
The NPI number for Philip N. Chironis, M.D. A Medical Corporation is 1356528012. It was assigned to this organization in the NPPES registry on January 24, 2008.
Where is Philip N. Chironis, M.D. A Medical Corporation located?
Philip N. Chironis, M.D. A Medical Corporation is located at 361 Hospital Rd Suite 522, Newport Beach, CA 92663. The listed phone number is (949) 645-5918.
What is Philip N. Chironis, M.D. A Medical Corporation's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Philip N. Chironis, M.D. A Medical Corporation enrolled in Medicare?
Yes. Philip N. Chironis, M.D. A Medical Corporation is registered in the Medicare PECOS enrollment system.
When is Philip N. Chironis, 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 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 Philip N. Chironis, M.D. A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Otolaryngology, reassign their Medicare billing to Philip N. Chironis, M.D. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Philip N. Chironis, M.D. A Medical Corporation was last updated on January 24, 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.
# Philip N. Chironis, M.d. A Medical Corporation · NPI 1356528012
Specialist organization in Newport Beach, California. Organization record, active in the CMS NPPES registry since January 24, 2008.
## Identity
- **NPI:** 1356528012 (Entity type: Organization)
- **Enumerated:** January 24, 2008
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Philip Chironis, OWNER/PRESIDENT
## Practice location
- **Address:** 361 HOSPITAL RD, SUITE 522, Newport Beach, CA 92663-3522
- **Phone:** (949) 645-5918 · **Fax:** (949) 645-0453
## 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:** 3 clinicians (Otolaryngology) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 24, 2008
- **Other identifiers:** Medicare PIN W14450
---
Source: [NPI Profile](https://npiprofile.com/npi/1356528012) · Data from the CMS NPPES public registry.