George Sidarous, MD
Hematology & Oncology Physician · Little Rock, AR
George Sidarous, MD is a hematology & oncology physician with a practice address in Little Rock, Arkansas, and NPI 1407506983, issued on Mar 27, 2022. Check the license on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- George Sidarous
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 0101281005 VA
Self-reported in NPPES; status is on the state search - Practice location
- 4301 W Markham St, Little Rock, AR 72205
- Phone
- (501) 686-8000
- Enumerated
- Mar 27, 2022
- Record last updated
- Jul 20, 2025
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 103 in Arkansas → Look up another NPI →
Also registered at 4301 W Markham St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ahmed Abuabdou, M.D.Internal Medicine Physician1245547702
- Dana Abulez, MSEStudent in an Organized Health Care Education/Training Program1710716915
- Erin Adams, MDStudent in an Organized Health Care Education/Training Program1225822406
Verify George Sidarous in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
78 Medicare Part D claims for 36 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
George Sidarous among 103 hematology & oncology physician records in Arkansas
George Sidarous, MD is one of 103 hematology & oncology physician records with a practice address in Arkansas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than over 99% of them.
- NPI issued2022 · over 99% of these records are older, 0% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 79% of these records are
- Record last updated2025 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Arkansas
There are 103 hematology & oncology physician records in Arkansas.
All 103 in Arkansas → Every provider in Little Rock → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Konstantinos Arnaoutakis, M.D.Little Rock, AR 722051053426304
- Joseph Beck, MDLittle Rock, AR 722051568441368
- Anthony Bucolo, M.D.Little Rock, AR 722051497752638
- Peter Emanuel, MDLittle Rock, AR 722051205844594
- Mariann Harrington, M.D.Little Rock, AR 722051184606071
- Kewen Jauss, M.D.Little Rock, AR 722051609984368
- Anuradha Kunthur, MDLittle Rock, AR 722051770526147
- Lawrence Mendelsohn, MDLittle Rock, AR 722051295717189
Common questions
What is George Sidarous, MD's NPI number?
George Sidarous, MD's National Provider Identifier (NPI) is 1407506983, issued on Mar 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is George Sidarous, MD located?
The NPPES record lists a practice address at 4301 W Markham St, Little Rock, AR, 72205. Phone: (501) 686-8000. Providers update this record themselves, so call before visiting.
How can I verify George Sidarous, MD's license?
Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does George Sidarous, MD prescribe under Medicare Part D?
In 2024, George Sidarous, MD had 78 Medicare Part D claims for 36 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.