1. Home
  2. Directory
  3. New Jersey
  4. Pennington
  5. Radiology
  6. NPI Profile

DR. SHIRNETT K. WILLIAMSON M.D.
NPI 1083785042
Radiology - Radiation Oncology in Pennington, NJ

Active since November 13, 2006PECOS EnrolledAccepts Medicare Assignment
88/100
CMS Quality Rating
1 CAPITAL WAY, PENNINGTON, NJ 08534(609) 304-4000 Get Directions Write a Review

NPPES record last updated: November 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 14, 2025, May 25, 2021, Feb 26, 2018 and 2 more (5 updates tracked since 2016).

About Dr. Shirnett K. Williamson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SHIRNETT K. WILLIAMSON M.D. (NPI 1083785042) is an individual radiation oncology provider in Pennington, New Jersey, licensed in New Jersey (25MA06401400) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Howard University College Of Medicine (1991).

NPPES Registry Identity

NPI1083785042
Entity TypeIndividualFemale
Primary Taxonomy2085R0001X
Provider Legal NameDR. SHIRNETT K. WILLIAMSONCredential: M.D.
Location Address1 CAPITAL WAYPennington, NJ 08534-2520
Mailing Address1 Capital WayPennington, NJ 08534-2520 · (609) 303-4000
Phone(609) 304-4000
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 1991
Enumeration DateNovember 13, 2006
Last NPPES UpdateNovember 14, 20255 updates tracked since enumeration
NPPES CertifiedNovember 14, 2025
✔ NPI 1083785042 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Licenses✔ Licensed in NJ · 25MA06401400✔ Licensed in AZ · 76633
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
1 CAPITAL WAY, Pennington, NJ 08534
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1One Capital WayPennington, NJ 08534-5227 · Phone (609) 304-4244 · Fax (609) 303-4156
Location 2625 N 6th StPhoenix, AZ 85004-2155 · Phone (602) 406-8222

Other Identifiers 1

Medicaid7030509NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Shirnett K. Williamson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133156508
PECOS Enrollment IDI20050719000056, I20250530003140
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08534 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$185.05 typical visit price
range $61.59 – $185.05
Typical copayment $46.26 (range $15.39 – $46.26)
Most-billed visit code 99205
Established Patient
$76.45 typical visit price
range $20.08 – $150.98
Typical copayment $19.11 (range $5.02 – $37.74)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality78.73
Promoting Interoperability99
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AARTI SANJEEV VADHAVKAR M.D.
Anesthesiology
1 CAPITAL WAY, DEPT OF ANESTHESIOLOGY, CAPITAL HEALTH HOPEWELL MEDICAL
PENNINGTON, NJ 08534
Mercer County (800) 637-2374
MRS. EMILY KATHERINE WARIAS NP
Nurse Practitioner
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (609) 303-6000
DANIEL FINKE CRNA
Nurse Anesthetist, Certified Registered
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (800) 637-2374
JENNIFER JIE XU DO
Emergency Medicine
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (609) 303-4010
SRIYA AMRUTA KOSARAJU MD
Student in an Organized Health Care Education/Training Program
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (800) 637-2374
KAREN B GIQUINTO CRNP
Nurse Practitioner
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (609) 303-4000
CANDICE A DISANTI CNM
Advanced Practice Midwife
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (609) 303-4000
MADHURI ADABALA M.D.
Internal Medicine
1 CAPITAL WAY
PENNINGTON, NJ 08534
Mercer County (609) 303-4000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shirnett Williamson's NPI number?

The NPI number for Shirnett Williamson is 1083785042. It was assigned to this individual provider in the NPPES registry on November 13, 2006.

Where is Shirnett Williamson located?

Shirnett Williamson practices at 1 Capital Way, Pennington, NJ 08534. The listed phone number is (609) 304-4000.

What is Shirnett Williamson's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Shirnett Williamson enrolled in Medicare?

Yes. Shirnett Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Shirnett Williamson accept?

Health plans from Blue Cross Blue Shield of Arizona and UnitedHealthcare list Shirnett Williamson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Shirnett Williamson was last updated on November 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.