Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Matthew Gross, MD

Works at hospitals in Danbury, CT · Connecticut

Summary

Matthew Gross, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Danbury, CT. NPI 1558749424. 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 Matthew Gross, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
11Years since medical school (graduated 2015)
New York University School Of MedicineMedical school
MaleGender (as listed)
Danbury HospitalGroup practice

Quick answers

Which hospitals does Matthew Gross work at?
Medicare's official clinician data lists Matthew Gross at 1 hospital: Danbury Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew Gross see patients?
Medicare's clinician data lists 1 practice location in Danbury, CT. Call before your visit to confirm the address.
What is Matthew Gross's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Matthew Gross accept Medicare assignment?
Yes. Medicare's clinician data says Matthew Gross 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 Matthew Gross?
(203) 739-7000, as listed in official Medicare / NPI Registry data.
What is Matthew Gross's NPI number?
1558749424. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Matthew Gross works

Medicare's Facility Affiliation Data lists Matthew Gross 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 Matthew Gross is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Matthew Gross as a member of this group (CMS data updated 2026-10-02).

  • Danbury Hospital50 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Connecticut →

Other emergency medicine doctors in Danbury

Clinicians with the same Medicare primary specialty in Danbury, CT — not a recommendation.

All emergency medicine doctors in Danbury →

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558749424
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