Nicholas Lillo, M.D.
Gastroenterology Physician · Fairfield, CT
Nicholas Lillo, M.D. is a gastroenterology physician with a practice address in Fairfield, Connecticut, and NPI 1144482308, issued on Jun 30, 2008. Check the license (Connecticut 051628, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nicholas Lillo
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 051628 CT
Self-reported in NPPES; status is on the state search - Practice location
- 425 Post RD, Fairfield, CT 06824
- Phone
- (203) 374-4966
- Enumerated
- Jun 30, 2008
- Record last updated
- May 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130823000870); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 425 Post RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eric AlterCardiovascular Disease Physician1225370901
- Angelina AngeliFamily Nurse Practitioner1730669920
- Paul Berard, MDHematology & Oncology Physician1699773804
- Emil Blanco, MDSpecialist1134111040
- Eddy CastilloSpecialist1225020134
Verify Nicholas Lillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 051628Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,910 Medicare Part D claims for 553 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium522 claims
- Sod Sulf-Potass Sulf-Mag Sulf210 claims
- Omeprazole150 claims
- Dicyclomine Hcl111 claims
- Linzess94 claims
- Creon67 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,398.02
125 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.
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
- Connecticut GI PLLCHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Lillo among 336 gastroenterology physician records in Connecticut
Nicholas Lillo, 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 2008, is newer than 64% of them.
- NPI issued2008 · 64% of these records are older, 31% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2007 · median 2001 among the 255 with a school on file
- Record last updated2020 · 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.
All 336 in Connecticut → Every provider in Fairfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jennifer Barro, MDGreenwich, CT 068301194841379
- Clifford Berken, M.D.Greenwich, CT 068301215951173
- Nelson Bonheim, MDGreenwich, CT 068301366514549
- Neda Khaghan, M.D.Greenwich, CT 068301538180427
- Scott Kramer, M.D.Greenwich, CT 068301154648186
- Neal Schamberg, M.D.Greenwich, CT 068301841458759
- Alan Selkin, M.D.Greenwich, CT 068301508912759
- Felice Zwas, M.D.Greenwich, CT 068301225059116
Common questions
What is Nicholas Lillo, M.D.'s NPI number?
Nicholas Lillo, M.D.'s National Provider Identifier (NPI) is 1144482308, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Lillo, M.D. located?
The NPPES record lists a practice address at 425 Post RD, Fairfield, CT, 06824. Phone: (203) 374-4966. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Lillo, M.D.'s license?
NPPES lists Connecticut license number 051628, 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 Nicholas Lillo, M.D. prescribe under Medicare Part D?
In 2024, Nicholas Lillo, M.D. had 1,910 Medicare Part D claims for 553 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Nicholas Lillo, 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.