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

Hand Surgery

Ariel A. Williams, MD

Works at hospitals in Bridgeport, CT · New Haven, CT · Connecticut

Summary

Ariel A. Williams, MD (Hand Surgery) is listed by Medicare at 2 hospitals in Bridgeport, CT and New Haven, CT. NPI 1811211337. 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 Ariel A. Williams, 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

Hand SurgeryPrimary specialty
YesAccepts Medicare assignment
16Years since medical school (graduated 2010)
Stanford University School Of MedicineMedical school
FemaleGender (as listed)

Quick answers

Which hospitals does Ariel A. Williams work at?
Medicare's official clinician data lists Ariel A. Williams at 2 hospitals: Bridgeport Hospital and Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ariel A. Williams see patients?
Medicare's clinician data lists 6 practice locations, including Fairfield, CT, Bridgeport, CT and Milford, CT. Call before your visit to confirm the address.
What is Ariel A. Williams's specialty?
Medicare lists Hand Surgery as the primary specialty.
Does Ariel A. Williams accept Medicare assignment?
Yes. Medicare's clinician data says Ariel A. Williams 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 Ariel A. Williams?
(203) 384-8681, as listed in official Medicare / NPI Registry data.
What is Ariel A. Williams's NPI number?
1811211337. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ariel A. Williams works

Medicare's Facility Affiliation Data lists Ariel A. Williams 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 Ariel A. Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ariel A. Williams as a member of these groups (CMS data updated 2026-10-02).

  • Yale University2,645 clinicians in the group
  • Rehabilitation Associates Inc529 clinicians in the group
  • Ptsma Inc224 clinicians in the group

Specialties

Find other Hand Surgery doctors in Connecticut →

Other hand surgeons in Fairfield

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

All hand surgeons in Fairfield →

Clinician information

CredentialMD
Medical schoolStanford University School Of Medicine
Graduation year2010
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811211337
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