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Nurse Practitioner

Gregory S. Guion, NP

Sees patients in Danbury, CT · Connecticut

Summary

Gregory S. Guion, NP (Nurse Practitioner) is enrolled with Medicare at 1 practice location in Danbury, CT. NPI 1154937910. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(203) 748‑1200 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory S. Guion, 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

1Practice location
Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
7Years since medical school (graduated 2019)
New York University School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Gregory S. Guion see patients?
Medicare's clinician data lists 1 practice location in Danbury, CT. Call before your visit to confirm the address.
What is Gregory S. Guion's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Gregory S. Guion accept Medicare assignment?
Yes. Medicare's clinician data says Gregory S. Guion 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.
Does Gregory S. Guion offer telehealth?
Medicare's clinician data says Gregory S. Guion offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Gregory S. Guion?
(203) 748-1200, as listed in official Medicare / NPI Registry data.
What is Gregory S. Guion's NPI number?
1154937910. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Gregory S. Guion is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other clinicians: Nurse Practitioner, Connecticut →

Other nurse practitioners in Danbury

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

All nurse practitioners in Danbury →

Clinician information

CredentialNP
Medical schoolNew York University School Of Medicine
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1154937910
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians