NPPES file of Aug 9, 2026

Christopher John Dimaio, M.D.

Gastroenterology Physician · Greenlawn, NY

Christopher John Dimaio, M.D. is a gastroenterology physician with a practice address in Greenlawn, New York, and NPI 1295930840, issued on Jun 15, 2007. Check the license (New York 232631, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1295930840
Name
Christopher John Dimaio
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
232631 NY
Self-reported in NPPES; status is on the state search
Practice location
284 Pulaski RD, Greenlawn, NY 11740
Phone
(631) 470-1460
Enumerated
Jun 15, 2007
Record last updated
Dec 10, 2024
Medicare enrollment
Enrolled (PECOS I20080809000053); 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 284 Pulaski RD

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

  1. Michelle Baek, FNPFamily Nurse Practitioner1689082802
  2. Samantha BishopAdult Health Nurse Practitioner1427749076
  3. Roberto Blando, M.D.Pediatrics Physician1770508657
  4. Kip Bodi, MD FACSSpecialist1982689428
  5. Desiree Bollerup, AGPCNPAdult Health Nurse Practitioner1669250098
  6. Carrol Brandt, NPWomen's Health Nurse Practitioner1184877037

Verify Christopher John Dimaio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 232631
    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 New York license search

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64% fewer Medicare Part D claims than the average gastroenterology physician in 2024

292 Medicare Part D claims for 100 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Christopher Dimaio292
  2. Specialty average811

Most prescribed

  1. Omeprazole85 claims
  2. Pantoprazole Sodium57 claims
  3. Creon35 claims
  4. Sucralfate26 claims
  5. Rabeprazole Sodium11 claims
  6. Sulindac11 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: $281.08

7 payments; by number, the most common kind was food and beverage; the largest payer was Conmed Corporation. 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. Christopher Dimaio$281.08
  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. North Shore-Lij Medical PCUniondale, NY

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

Christopher John Dimaio among 1,797 gastroenterology physician records in New York

Christopher John Dimaio, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% 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 56% of them.

  • NPI issued2007 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2000 · median 1999 among the 1,378 with a school on file
  • Record last updated2024 · 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 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in New York

There are 1,797 gastroenterology physician records in New York.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Eric BallecerGreenlawn, NY 117401760833602
  2. Mejdi Ahmad, M.D.Huntington, NY 117431760492250
  3. Thomas Ekkers, M.D.Huntington, NY 117431457562795
  4. Richard Fried, MDHuntington, NY 117431467470328
  5. Frederick Gandolfo, M.D.Huntington, NY 117431053550079
  6. Barry Glanzman, M.D.Huntington, NY 117431598793937
  7. Scott Ingber, M.D.Huntington, NY 117431417963455
  8. Helena Joseph, NPHuntington, NY 117431700817301

Common questions

What is Christopher John Dimaio, M.D.'s NPI number?

Christopher John Dimaio, M.D.'s National Provider Identifier (NPI) is 1295930840, issued on Jun 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher John Dimaio, M.D. located?

The NPPES record lists a practice address at 284 Pulaski RD, Greenlawn, NY, 11740. Phone: (631) 470-1460. Providers update this record themselves, so call before visiting.

How can I verify Christopher John Dimaio, M.D.'s license?

NPPES lists New York license number 232631, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher John Dimaio, M.D. prescribe under Medicare Part D?

In 2024, Christopher John Dimaio, M.D. had 292 Medicare Part D claims for 100 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.