IRINA V KOLOMEY D O
NPI 1821779851
Internal Medicine in Walnut Creek, CA
About Irina V Kolomey D O NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IRINA V KOLOMEY D O (NPI 1821779851) is a healthcare organization registered as an internal medicine in Walnut Creek, California and active in the NPI registry since July 2023. The organization maintains a secondary practice location in Antioch and lists Irina Victor Kolomey, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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)
Irina V Kolomey D O 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 Irina V Kolomey D O, 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 Irina V Kolomey D O's NPI number?
The NPI number for Irina V Kolomey D O is 1821779851. It was assigned to this organization in the NPPES registry on July 31, 2023.
Where is Irina V Kolomey D O located?
Irina V Kolomey D O is located at 1808 San Miguel Dr, Walnut Creek, CA 94596. The listed phone number is (925) 528-2663.
What is Irina V Kolomey D O's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Irina V Kolomey D O enrolled in Medicare?
Yes. Irina V Kolomey D O is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Irina V Kolomey D O?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Irina V Kolomey D O. 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 Irina V Kolomey D O was last updated on September 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.