George B. Kazantsev, MD
Specialist · Oakland, CA
George B. Kazantsev, MD is a specialist with a practice address in Oakland, California, and NPI 1184687592, issued on Apr 7, 2006. Check the license (California A83412, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- George B. Kazantsev
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- A83412 CA
Self-reported in NPPES; status is on the state search - Practice location
- 275 W Macarthur Blvd, Oakland, CA 94611
- Phone
- (510) 752-1000
- Enumerated
- Apr 7, 2006
- Record last updated
- Jan 4, 2022
- Fax
- (510) 832-6061
- Medicaid ID
- GR0098240 CA
- Medicare enrollment
- Enrolled (PECOS I20070122000540); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 275 W Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify George B. Kazantsev in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A83412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average specialist in 2024
67 Medicare Part D claims for 31 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 17 claims were for opioids.
Most prescribed
- Oxycodone Hcl15 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.
Bills Medicare through one group practice
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
198 specialist records list a practice address in Oakland
They are 198 of the 18,558 NPPES records with a practice address in Oakland, and 5,749 specialist records in California.
All 198 in Oakland → All 5,749 in California → Every provider in Oakland →
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- Jonas AbellaSan Francisco, CA1679760938
- Shreedhar Abhyankar, M.D.Indio, CA1861530669
- Elaine AbichRiverside, CA1780458927
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Common questions
What is George B. Kazantsev, MD's NPI number?
George B. Kazantsev, MD's National Provider Identifier (NPI) is 1184687592, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George B. Kazantsev, MD located?
The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.
How can I verify George B. Kazantsev, MD's license?
NPPES lists California license number A83412, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does George B. Kazantsev, MD prescribe under Medicare Part D?
In 2024, George B. Kazantsev, MD had 67 Medicare Part D claims for 31 beneficiaries; the average among specialist prescribers was 1,380. 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.