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

Internal Medicine

Dayse E. Fernandes, MD

Works at hospitals in South Weymouth, MA · Massachusetts

Summary

Dayse E. Fernandes, MD (Internal Medicine) is listed by Medicare at 1 hospital in South Weymouth, MA. NPI 1861837411. 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 Dayse E. Fernandes, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
FemaleGender (as listed)
Coastal Medical AssociatesGroup practice

Quick answers

Which hospitals does Dayse E. Fernandes work at?
Medicare's official clinician data lists Dayse E. Fernandes at 1 hospital: South Shore Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Dayse E. Fernandes see patients?
Medicare's clinician data lists 1 practice location in Weymouth, MA. Call before your visit to confirm the address.
What is Dayse E. Fernandes's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Dayse E. Fernandes accept Medicare assignment?
Yes. Medicare's clinician data says Dayse E. Fernandes 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 Dayse E. Fernandes?
(781) 792-4136, as listed in official Medicare / NPI Registry data.
What is Dayse E. Fernandes's NPI number?
1861837411. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Dayse E. Fernandes works

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

Group practices

Medicare enrollment lists Dayse E. Fernandes as a member of this group (CMS data updated 2026-10-02).

  • Coastal Medical Associates443 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Weymouth

Clinicians with the same Medicare primary specialty in Weymouth, MA — not a recommendation.

All internal medicine doctors in Weymouth →

Clinician information

CredentialMD
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861837411
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