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Nephrology

Onica L. Washington, MD

Works at hospitals in Milford, MA · Southbridge, MA · Leominster, MA … · Massachusetts

Summary

Onica L. Washington, MD (Nephrology) is listed by Medicare at 4 hospitals in Milford, MA, Southbridge, MA and Leominster, MA and other places. NPI 1508362427. 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 Onica L. Washington, 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

NephrologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
8Years since medical school (graduated 2018)
Medical University Of South Carolina College Of MedicineMedical school
FemaleGender (as listed)
UMass Memorial Medical Group IncGroup practice

Quick answers

Which hospitals does Onica L. Washington work at?
Medicare's official clinician data lists Onica L. Washington at 4 hospitals: Milford Regional Medical Center, UMass Memorial Health - Harrington Hospital, UMass Memorial Healthalliance Hospitals and UMass Memorial Medical Center/University Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Onica L. Washington see patients?
Medicare's clinician data lists 2 practice locations, including Worcester, MA. Call before your visit to confirm the address.
What is Onica L. Washington's specialty?
Medicare lists Nephrology as the primary specialty, and also Geriatric Medicine.
Does Onica L. Washington accept Medicare assignment?
Yes. Medicare's clinician data says Onica L. Washington 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 Onica L. Washington offer telehealth?
Medicare's clinician data says Onica L. Washington offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Onica L. Washington?
(508) 334-1000, as listed in official Medicare / NPI Registry data.
What is Onica L. Washington's NPI number?
1508362427. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Onica L. Washington works

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

Group practices

Medicare enrollment lists Onica L. Washington as a member of this group (CMS data updated 2026-10-02).

  • UMass Memorial Medical Group Inc2,516 clinicians in the group

Specialties

Find other Nephrology doctors in Massachusetts →

Other nephrologists in Worcester

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

All nephrologists in Worcester →

Clinician information

CredentialMD
Medical schoolMedical University Of South Carolina College Of Medicine
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1508362427
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