What is Onica Washington's NPI number?

Onica Washington's National Provider Identifier (NPI) is 1508362427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Onica Washington's specialty?

Onica Washington is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).

Where is Onica Washington located?

Onica Washington's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.

What is Onica Washington's phone number?

The practice phone number listed in the NPPES registry for Onica Washington is (508) 334-3155.

Does Onica Washington accept Medicare?

Onica Washington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Onica Washington's NPI active?

Yes — Onica Washington's NPI (1508362427) is active in the NPPES registry as of the last update on 2024-06-10.

IndividualActiveAccepts Medicare

Onica Washington, MD, PHD

NPI 1508362427 · Nephrology Physician · Worcester, MA

Onica Washington, MD, PHD is a Nephrology Physician provider in Worcester, MA (NPI 1508362427).

Provider details

NPI number: 1508362427
Entity type: Individual
Primary specialty: Nephrology PhysicianAllopathic & Osteopathic Physicians
Credential: MD, PHD
Sex: Female
Sole proprietor: No
License: 1014793 (MA)

Practice location

55 Lake Ave N

Worcester, MA 01655-0002

Phone: (508) 334-3155

Street-level locationGet directions

More MA providers

Mailing address

Po Box 415348

Boston, MA 02241-5348

Specialties & taxonomies

Nephrology PhysicianPrimary207RN0300XLicense 1014793 (MA)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

119 Belmont St
Worcester, MA 01605-2903
Phone: (508) 334-3155

Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
8 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
111 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	22	$78
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	18	$132
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	17	$92
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	15	$16
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	15

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)
Lisinopril	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2018-03-30
Last updated: 2024-06-10
Certified: 2024-06-10

Frequently asked questions

What is Onica Washington's NPI number?: Onica Washington's National Provider Identifier (NPI) is 1508362427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Onica Washington's specialty?: Onica Washington is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
Where is Onica Washington located?: Onica Washington's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
What is Onica Washington's phone number?: The practice phone number listed in the NPPES registry for Onica Washington is (508) 334-3155.
Does Onica Washington accept Medicare?: Onica Washington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Onica Washington's NPI active?: Yes — Onica Washington's NPI (1508362427) is active in the NPPES registry as of the last update on 2024-06-10.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	22	$78
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	18	$132
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	17	$92
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	15	$16
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	15

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)
Lisinopril	12

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)