Irina Victor Kolomey, D.O.
Internal Medicine Physician · Walnut Creek, CA
Irina Victor Kolomey, D.O. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1104062173, issued on Dec 22, 2008. Check the license (California 20A10625, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irina Victor Kolomey
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A10625 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1804 San Miguel Dr, Walnut Creek, CA 94596
- Phone
- (925) 363-3395
- Enumerated
- Dec 22, 2008
- Record last updated
- Nov 17, 2025
- Fax
- (877) 569-2007
- Medicare enrollment
- Enrolled (PECOS I20100715000696); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1804 San Miguel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Irina Victor Kolomey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average internal medicine physician in 2024
3,269 Medicare Part D claims for 426 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 108 claims were for opioids.
Most prescribed
- Atorvastatin Calcium205 claims
- Amlodipine Besylate167 claims
- Lisinopril140 claims
- Metformin Hcl119 claims
- Levothyroxine Sodium116 claims
- Losartan Potassium78 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $812.42
25 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Irina Victor Kolomey among 17,696 internal medicine physician records in California
Irina Victor Kolomey, D.O. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
183 internal medicine physician records list a practice address in Walnut Creek
They are 183 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Walnut Creek → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anthony Arroyo, MDWalnut Creek, CA 945961376621458
- Sheila Bhatia, MDWalnut Creek, CA 945961225135379
- Amrita Dhaliwal, MDWalnut Creek, CA 945961164500740
- Nellia Karakozova, MDWalnut Creek, CA 945961659459154
- Joseph Long, MDWalnut Creek, CA 945961225116379
- Roxanne McDaniel, MDWalnut Creek, CA 945961457439937
- Huu Nguyen, D.O.Walnut Creek, CA 945961811966492
- Jeff Ortiz, MDWalnut Creek, CA 945961891873964
Common questions
What is Irina Victor Kolomey, D.O.'s NPI number?
Irina Victor Kolomey, D.O.'s National Provider Identifier (NPI) is 1104062173, issued on Dec 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Irina Victor Kolomey, D.O. located?
The NPPES record lists a practice address at 1804 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 363-3395. Providers update this record themselves, so call before visiting.
How can I verify Irina Victor Kolomey, D.O.'s license?
NPPES lists California license number 20A10625, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Irina Victor Kolomey, D.O. prescribe under Medicare Part D?
In 2024, Irina Victor Kolomey, D.O. had 3,269 Medicare Part D claims for 426 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.