NPPES file of Aug 9, 2026

Aymeric E. Louit, MD

Allergy & Immunology Physician · Norwalk, CT

Aymeric E. Louit, MD is an allergy & immunology physician with a practice address in Norwalk, Connecticut, and NPI 1881744456, issued on Jan 12, 2007. Check the license (Connecticut 044897, 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
1881744456
Name
Aymeric E. Louit
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
044897 CT
Self-reported in NPPES; status is on the state search
Practice location
148 East Avenue, Norwalk, CT 06851
Phone
(203) 838-4034
Enumerated
Jan 12, 2007
Record last updated
Oct 8, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(203) 853-6361
Medicare enrollment
Enrolled (PECOS I20070319000501); 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 148 East Avenue

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

  1. Audrey Bregante, APRN RN NPPediatric Nurse Practitioner1609967496
  2. Clifford Feller, MDObstetrics & Gynecology Physician1174581706
  3. Mark Litchman, MDAllergy & Immunology Physician1447341243
  4. Libia Rueda-Matik, MDPediatrics Physician1053483578
  5. Joseph Sproviero, MD PHDAllergy & Immunology Physician1780775577
  6. Jesse Wexler, MDDiagnostic Radiology Physician1912972670

Verify Aymeric E. Louit in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 044897
    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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61% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

288 Medicare Part D claims for 83 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Aymeric Louit288
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium37 claims
  2. Albuterol Sulfate Hfa28 claims
  3. Prednisone25 claims
  4. Fluticasone Propionate18 claims
  5. Breo Ellipta17 claims
  6. Azelastine Hcl14 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): 80.3 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 score74.1
  2. Costout of 100 · 30%71.1
  3. Promoting interoperabilityout of 100 · 25%87.0
  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: $69.88

3 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Aymeric Louit$69.88
  2. Specialty average$8,321.81

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. Fairfield County Allergy Asthma And Immunology Associates PCNorwalk, CT

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

Aymeric E. Louit among 57 allergy & immunology physician records in Connecticut

Aymeric E. Louit, MD is one of 57 allergy & immunology physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.

  • NPI issued2007 · 58% of these records are older, 26% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2003 · median 2002 among the 35 with a school on file
  • Record last updated2020 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Connecticut

There are 57 allergy & immunology physician records in Connecticut.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Kaoru Harada, M.D.Norwalk, CT 068511215383864
  2. Philip Hemmers, D.O.Norwalk, CT 068511386700854
  3. Mark Litchman, MDNorwalk, CT 068511447341243
  4. Agnieszka Matczuk, MDNorwalk, CT 068511467436733
  5. Joseph Sproviero, MD PHDNorwalk, CT 068511780775577
  6. Michael Lewin, MDNorwalk, CT 068501538100557
  7. Gary Soffer, MDGreenwich, CT 068301477991867
  8. Aimee Altschul-Latzman, M.D.Fairfield, CT 068241003855859

Common questions

What is Aymeric E. Louit, MD's NPI number?

Aymeric E. Louit, MD's National Provider Identifier (NPI) is 1881744456, issued on Jan 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Aymeric E. Louit, MD located?

The NPPES record lists a practice address at 148 East Avenue, Norwalk, CT, 06851. Phone: (203) 838-4034. Providers update this record themselves, so call before visiting.

How can I verify Aymeric E. Louit, MD's license?

NPPES lists Connecticut license number 044897, 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 Aymeric E. Louit, MD prescribe under Medicare Part D?

In 2024, Aymeric E. Louit, MD had 288 Medicare Part D claims for 83 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.

What is Aymeric E. Louit, MD's MIPS final score?

The 2023 MIPS final score is 80.3 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.