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Rosa G Williams , PA-C

Physician Assistant • Newark, NJ

Active NPI 1528279544 Individual Practitioner Female Practitioner
Practice location in NPPES

90 Bergen Street, Ste 8100
Newark, NJ 07103

Call 9739722323 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

90 Bergen Street
Ste 8100

Newark, NJ 07103

Telephone 9739722323
Fax 9739728553
Organization at the Same NPPES Address or Phone
University Neurosurgery Associates (Om) Facility NPI 1033765383

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

30-day fills

65 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$173 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $14.57 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

NPI first issued

2007

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Rosa Williams has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Rosa Williams as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Newark and New Jersey

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Fewer Part D prescriptions than 65% of clinicians listed under Physician Assistant in Newark, NJ (2024, 30 clinicians with data). Median for this group: 78. Middle half: 35 to 148.

Fewer Part D prescriptions than 75% of clinicians listed under Physician Assistant in New Jersey (2024, 1,596 clinicians with data). Median for this group: 171. Middle half: 52 to 486.

Part D drug cost

A lower Part D drug cost than 70% of clinicians listed under Physician Assistant in Newark, NJ (2024, 30 clinicians with data). Median for this group: $512. Middle half: $148 to $2,591.

A lower Part D drug cost than 80% of clinicians listed under Physician Assistant in New Jersey (2024, 1,596 clinicians with data). Median for this group: $2,022. Middle half: $389 to $23,881.

83 active clinicians are listed under Physician Assistant with a practice address in Newark, NJ (3,397 in New Jersey).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Newark

7.2% of these 83 clinicians have the CMS telehealth indicator.

45.8% of these 83 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2023
Disclosure Year:

Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $14.57.

Manufacturer Payment Nature Product Type Amount ($)
Kowa Pharmaceuticals America, Inc.
Food and Beverage
In-kind items and services
LIVALO General $14.57

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Amlodipine Besylate Amlodipine Besylate 27 1,470 $151.90 —
Oxycodone Hcl Oxycodone Hcl 16 24 $21.09 16

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES NJ 25MP00014000

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: New Jersey Division of Consumer Affairs.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
0639333636 (NJ)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20171018003013

Enrollment State Jurisdiction

NJ

PECOS Control ID

5991071995

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

5 listed
Dr. Pankaj Agarwalla , MD

Neurological Surgery

NPI 1386965523

Doctor of Medicine (M.D.)

Dr. John Gillick , MD

Neurological Surgery

NPI 1821499344

Doctor of Medicine (M.D.)

Anissa Ittner , PA-C

Physician Assistant

NPI 1740959311

Physician Assistant (Certified)

Dr. Priyank Khandelwal , MD

Psychiatry & Neurology - Vascular Neurology

NPI 1225347727

Doctor of Medicine (M.D.)

Krista Rogaski , MS, PA-C

Physician Assistant - Surgical

NPI 1073697330

Master of Science, Physician Assistant (Certified)

Career & Practice History

NPI enumerated May 24, 2007.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1528279544
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 24, 2007
Last Update: July 09, 2007
Sole Proprietor: No

Other Physician Assistants in Newark

All Physician Assistants in Newark

Mailing Address

75 Montrose St

Newark, NJ 071061635

Phone: 9734724777

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.