NPPES file of Aug 9, 2026

Abera H. Abay, M.D.

Gastroenterology Physician · Norwich, CT

Abera H. Abay, M.D. is a gastroenterology physician with a practice address in Norwich, Connecticut, and NPI 1861489585, issued on Sep 29, 2005. Check the license (Connecticut 039924, 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
1861489585
Name
Abera H. Abay
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
039924 CT
Self-reported in NPPES; status is on the state search
Practice location
79 Wawecus St, Norwich, CT 06360
Phone
(860) 886-2655
Enumerated
Sep 29, 2005
Record last updated
Nov 12, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100910001098); accepts Medicare assignment
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 79 Wawecus St

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

  1. Kathryn Bony, ODOptometrist1013997923
  2. Paige Brennan, MDClinical Cardiac Electrophysiology Physician1740365659
  3. Leslie Brown, P.A.Medical Physician Assistant1760790612
  4. John Foley, M.D.Cardiovascular Disease Physician1326044124
  5. Michael Fucci, DOCardiovascular Disease Physician1104896224
  6. Jeannine Hampton, APRNFamily Nurse Practitioner1366419459

Verify Abera H. Abay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 039924
    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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2.2 times the Medicare Part D claims of the average gastroenterology physician in 2024

1,808 Medicare Part D claims for 650 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Abera Abay1,808
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium399 claims
  2. Omeprazole293 claims
  3. Sod Sulf-Potass Sulf-Mag Sulf230 claims
  4. Linzess154 claims
  5. Famotidine82 claims
  6. Esomeprazole Magnesium39 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: $2,369.62

118 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. Abera Abay$2,369.62
  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 PLLCNorwich, CT

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

Abera H. Abay among 336 gastroenterology physician records in Connecticut

Abera H. Abay, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1990 · 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. Tonya Hall, M.D.Norwich, CT 063601104813724
  2. Jefrey Salek, MDNorwich, CT 063601962656314
  3. You Sung Sang, M.D.Norwich, CT 063601275520892
  4. Sunita Sidhu-Buonocore, MDNorwich, CT 063601316264286
  5. Shivani Sood, M.D.Norwich, CT 063601356500532
  6. Sarah Canavan, MDWaterford, CT 063851851488621
  7. Mical Campbell, MDNew London, CT 063201083628770
  8. John Frese, M.D.New London, CT 063201457316382

Common questions

What is Abera H. Abay, M.D.'s NPI number?

Abera H. Abay, M.D.'s National Provider Identifier (NPI) is 1861489585, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Abera H. Abay, M.D. located?

The NPPES record lists a practice address at 79 Wawecus St, Norwich, CT, 06360. Phone: (860) 886-2655. Providers update this record themselves, so call before visiting.

How can I verify Abera H. Abay, M.D.'s license?

NPPES lists Connecticut license number 039924, 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 Abera H. Abay, M.D. prescribe under Medicare Part D?

In 2024, Abera H. Abay, M.D. had 1,808 Medicare Part D claims for 650 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Abera H. Abay, 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.