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Gastroenterology

Christopher Tomaino, MD

Works at hospitals in Port Jefferson, NY · New York

Summary

Christopher Tomaino, MD (Gastroenterology) is listed by Medicare at 1 hospital in Port Jefferson, NY. NPI 1558594960. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Christopher Tomaino, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
MaleGender (as listed)
CHS Physician Partners PCGroup practice (+1 more)

Quick answers

Which hospitals does Christopher Tomaino work at?
Medicare's official clinician data lists Christopher Tomaino at 1 hospital: St Charles Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Christopher Tomaino see patients?
Medicare's clinician data lists 2 practice locations, including Patchogue, NY and Port Jefferson, NY. Call before your visit to confirm the address.
What is Christopher Tomaino's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Christopher Tomaino accept Medicare assignment?
Yes. Medicare's clinician data says Christopher Tomaino accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Christopher Tomaino?
(631) 714-4444, as listed in official Medicare / NPI Registry data.
What is Christopher Tomaino's NPI number?
1558594960. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Christopher Tomaino works

Medicare's Facility Affiliation Data lists Christopher Tomaino at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Christopher Tomaino is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Christopher Tomaino as a member of these groups (CMS data updated 2026-10-02).

  • CHS Physician Partners PC743 clinicians in the group
  • East Coast Gastroenterology and Endoscopy PC3 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

All gastroenterologists in New York →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558594960
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians