Oleksandr Klymenko, MD
Internal Medicine Physician · Danbury, CT
Oleksandr Klymenko, MD is an internal medicine physician with a practice address in Danbury, Connecticut, and NPI 1245920743, issued on May 9, 2023. Check the license (Connecticut 84925, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Oleksandr Klymenko
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 84925 CT
Self-reported in NPPES; status is on the state search - Practice location
- 24 Hospital Avenue, Danbury, CT 06810
- Phone
- (203) 739-8105
- Enumerated
- May 9, 2023
- Record last updated
- Jun 8, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 24 Hospital Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samikshya Bhandari, MBBSStudent in an Organized Health Care Education/Training Program1477490027
- Tapasya Bhusal, M.DInternal Medicine Physician1427747658
Verify Oleksandr Klymenko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 84925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
125 Medicare Part D claims for 53 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin11 claims
- Methocarbamol11 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.
Oleksandr Klymenko among 2,623 internal medicine physician records in Connecticut
Oleksandr Klymenko, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
112 internal medicine physician records list a practice address in Danbury
They are 112 of the 2,412 NPPES records with a practice address in Danbury, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Danbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alka Aggarwal, MDDanbury, CT 068101427041987
- Charles Cahn, M.D.Danbury, CT 068101720064504
- Karen Coblens, MDDanbury, CT 068101063479848
- Allen Davis, M.D.Danbury, CT 068101639163439
- Amin Elashker, DODanbury, CT 068101093794182
- Sateesh Kathiravelu, M.D.Danbury, CT 068101083665244
- Asha Marhatta, MD; MPHDanbury, CT 068101366490013
- Kathleen Mauks, M.D.Danbury, CT 068101629064035
Common questions
What is Oleksandr Klymenko, MD's NPI number?
Oleksandr Klymenko, MD's National Provider Identifier (NPI) is 1245920743, issued on May 9, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Oleksandr Klymenko, MD located?
The NPPES record lists a practice address at 24 Hospital Avenue, Danbury, CT, 06810. Phone: (203) 739-8105. Providers update this record themselves, so call before visiting.
How can I verify Oleksandr Klymenko, MD's license?
NPPES lists Connecticut license number 84925, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Oleksandr Klymenko, MD prescribe under Medicare Part D?
In 2024, Oleksandr Klymenko, MD had 125 Medicare Part D claims for 53 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.