Oksana Kloyzner, MD
Internal Medicine Physician · Bloomfield, CT
Oksana Kloyzner, MD is an internal medicine physician with a practice address in Bloomfield, Connecticut, and NPI 1093791204, issued on Dec 20, 2005. Check the license (Connecticut 0397654, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Oksana Kloyzner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0397654 CT
Self-reported in NPPES; status is on the state search - Practice location
- 701 Cottage Grove RD, Bloomfield, CT 06002
- Phone
- (860) 242-4000
- Enumerated
- Dec 20, 2005
- Record last updated
- Sep 22, 2023
- Fax
- (860) 243-8286
- Medicaid ID
- 001397654 CT
- Medicare enrollment
- Enrolled (PECOS I20121018000538); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 701 Cottage Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Oksana Kloyzner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 0397654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.5 times the Medicare Part D claims of the average internal medicine physician in 2024
30,137 Medicare Part D claims for 380 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 49 claims were for opioids.
Most prescribed
- Atorvastatin Calcium2,377 claims
- Trazodone Hcl1,532 claims
- Amlodipine Besylate1,338 claims
- Levothyroxine Sodium988 claims
- Lisinopril888 claims
- Gabapentin861 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: $34.03
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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.
Bills Medicare through one group practice
- Collins Medical Associates 2 PCBloomfield, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Oksana Kloyzner among 2,623 internal medicine physician records in Connecticut
Oksana Kloyzner, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1986 · median 2004 among the 1,646 with a school on file
- Record last updated2023 · 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).
28 internal medicine physician records list a practice address in Bloomfield
They are 28 of the 521 NPPES records with a practice address in Bloomfield, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Bloomfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Akwasi Arhin, MDBloomfield, CT 060021215958335
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- Gary Cohen, MDBloomfield, CT 060021346264413
- Elizabeth Evans, M.D.Bloomfield, CT 060021235126491
- Paul Gandel, MDBloomfield, CT 060021194746263
- Stanley Glassman, M.D.Bloomfield, CT 060021700841368
- Eric Goldberg, DOBloomfield, CT 060021245226406
- Donald Maxwell, MDBloomfield, CT 060021740235282
Common questions
What is Oksana Kloyzner, MD's NPI number?
Oksana Kloyzner, MD's National Provider Identifier (NPI) is 1093791204, issued on Dec 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Oksana Kloyzner, MD located?
The NPPES record lists a practice address at 701 Cottage Grove RD, Bloomfield, CT, 06002. Phone: (860) 242-4000. Providers update this record themselves, so call before visiting.
How can I verify Oksana Kloyzner, MD's license?
NPPES lists Connecticut license number 0397654, 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 Oksana Kloyzner, MD prescribe under Medicare Part D?
In 2024, Oksana Kloyzner, MD had 30,137 Medicare Part D claims for 380 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.