Irina V Kolomey D O
NPI 1821779851 · Internal Medicine Physician · Walnut Creek, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irina V Kolomey D O is a Internal Medicine Physician organization in Walnut Creek, CA (NPI 1821779851).
Provider details
- NPI number
- 1821779851
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Irina Kolomey, President(925) 363-3395
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 2350 Country Hills Dr Ste BAntioch, CA 94509-7436Phone: (925) 528-2663
Registry dates
- Enumerated
- 2023-07-31
- Last updated
- 2023-09-14
- Certified
- 2023-09-14
Frequently asked questions
- What is Irina V Kolomey D O's NPI number?
- Irina V Kolomey D O's National Provider Identifier (NPI) is 1821779851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Irina V Kolomey D O?
- Irina V Kolomey D O is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Irina V Kolomey D O located?
- Irina V Kolomey D O's practice location on file with NPPES is 1808 San Miguel Dr, Walnut Creek, CA 94596-8606.
- What is Irina V Kolomey D O's phone number?
- The practice phone number listed in the NPPES registry for Irina V Kolomey D O is (925) 528-2663.
- Does Irina V Kolomey D O accept Medicare?
- Irina V Kolomey D O is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Irina V Kolomey D O?
- The authorized official listed on Irina V Kolomey D O's NPPES record is Irina Kolomey, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Irina V Kolomey D O's NPI active?
- Yes — Irina V Kolomey D O's NPI (1821779851) is active in the NPPES registry as of the last update on 2023-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.