NPPES file of Aug 9, 2026

Eugene Sapozhnikov, M.D.

Gastroenterology Physician · New London, CT

Eugene Sapozhnikov, M.D. is a gastroenterology physician with a practice address in New London, Connecticut, and NPI 1164488094, issued on Apr 20, 2006. Check the license (Connecticut 038561, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164488094
Name
Eugene Sapozhnikov
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
038561 CT
Self-reported in NPPES; status is on the state search
Practice location
234A Bank St, New London, CT 06320
Phone
(860) 442-0290
Enumerated
Apr 20, 2006
Record last updated
Dec 6, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(860) 442-2136
Medicaid ID
001385617 CT
Medicare enrollment
Enrolled (PECOS I20101020001476); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 234A Bank St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Teresa D'Errico, APRNNurse Practitioner1356384556
  2. John Frese, M.D.Gastroenterology Physician1457316382
  3. Emily JohnsonFamily Nurse Practitioner1053175935
  4. John Madsen, M.D.Gastroenterology Physician1144286667

Verify Eugene Sapozhnikov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 038561
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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44% fewer Medicare Part D claims than the average gastroenterology physician in 2024

457 Medicare Part D claims for 247 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Eugene Sapozhnikov457
  2. Specialty average811

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf149 claims
  2. Pantoprazole Sodium82 claims
  3. Omeprazole36 claims
  4. Mesalamine18 claims
  5. Xifaxan14 claims
  6. Sutab13 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.7
  2. Costout of 100 · 30%68.3
  3. Promoting interoperabilityout of 100 · 25%83.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,101.32

52 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eugene Sapozhnikov$1,101.32
  2. Specialty average$5,015.95

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

  1. Connecticut GI PLLCHartford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Eugene Sapozhnikov among 336 gastroenterology physician records in Connecticut

Eugene Sapozhnikov, M.D. is one of 336 gastroenterology physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 49% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2003 · median 2001 among the 255 with a school on file
  • Record last updated2012 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Connecticut

There are 336 gastroenterology physician records in Connecticut.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Mical Campbell, MDNew London, CT 063201083628770
  2. John Frese, M.D.New London, CT 063201457316382
  3. Amzad Khan, M.D.New London, CT 063201790945996
  4. John Madsen, M.D.New London, CT 063201144286667
  5. Abera Abay, M.D.Norwich, CT 063601861489585
  6. Tonya Hall, M.D.Norwich, CT 063601104813724
  7. Jefrey Salek, MDNorwich, CT 063601962656314
  8. You Sung Sang, M.D.Norwich, CT 063601275520892

Common questions

What is Eugene Sapozhnikov, M.D.'s NPI number?

Eugene Sapozhnikov, M.D.'s National Provider Identifier (NPI) is 1164488094, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eugene Sapozhnikov, M.D. located?

The NPPES record lists a practice address at 234A Bank St, New London, CT, 06320. Phone: (860) 442-0290. Providers update this record themselves, so call before visiting.

How can I verify Eugene Sapozhnikov, M.D.'s license?

NPPES lists Connecticut license number 038561, 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 Eugene Sapozhnikov, M.D. prescribe under Medicare Part D?

In 2024, Eugene Sapozhnikov, M.D. had 457 Medicare Part D claims for 247 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Eugene Sapozhnikov, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.