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Internal Medicine

Margaret Baran, MD

Works at hospitals in Greenwich, CT · Stamford, CT · Connecticut

Summary

Margaret Baran, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Greenwich, CT and Stamford, CT. NPI 1285623843. 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 Margaret Baran, 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
YesOffers telehealth
29Years since medical school (graduated 1997)
University Of Michigan Medical SchoolMedical school
FemaleGender (as listed)
Stamford Health Medical Group IncGroup practice

Quick answers

Which hospitals does Margaret Baran work at?
Medicare's official clinician data lists Margaret Baran at 2 hospitals: Greenwich Hospital Association - and Stamford Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Margaret Baran see patients?
Medicare's clinician data lists 1 practice location in Darien, CT. Call before your visit to confirm the address.
What is Margaret Baran's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Margaret Baran accept Medicare assignment?
Yes. Medicare's clinician data says Margaret Baran 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 Margaret Baran offer telehealth?
Medicare's clinician data says Margaret Baran offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Margaret Baran?
(203) 276-4282, as listed in official Medicare / NPI Registry data.
What is Margaret Baran's NPI number?
1285623843. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Margaret Baran works

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

Group practices

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

  • Stamford Health Medical Group Inc444 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Darien

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

All internal medicine doctors in Darien →

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1285623843
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