Shirnett K. Williamson, M.D.
Radiation Oncology Physician · Pennington, NJ
Shirnett K. Williamson, M.D. is a radiation oncology physician with a practice address in Pennington, New Jersey, and NPI 1083785042, issued on Nov 13, 2006. Check the license (New Jersey 25MA06401400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Shirnett K. Williamson
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 25MA06401400 NJ
76633 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1 Capital Way, Pennington, NJ 08534
- Phone
- (609) 304-4000
- Enumerated
- Nov 13, 2006
- Record last updated
- Nov 14, 2025
- Medicaid ID
- 7030509 NJ
- Medicare enrollment
- Enrolled (PECOS I20050719000056); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1991
- Entity
- Type 1 · individual
Also registered at 1 Capital Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Shirnett K. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA06401400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average radiation oncology physician in 2024
27 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 95.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Capital Health Medical GroupPennington, NJ
- Kingman Healthcare IncKingman, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in New Jersey
There are 153 radiation oncology physician records in New Jersey.
Other radiation oncology physician records in New Jersey
- Arvin Adler, D.O.Passaic, NJ1265430433
- Stuti Ahlawat, MDCamden, NJ1073801742
- Gregory Alexander, MDSewell, NJ1588157895
- Lemuel Ariaratnam, M.D.Mount Holly, NJ1326040890
- Sucha Asbell, MDCamden, NJ1770699605
- Young Bae, M.D.Toms River, NJ1124021423
- Joseph Baron, M.D.Toms River, NJ1851572481
- John Baumann, MDMonroe Twp, NJ1619917507
- David Billing, MD, PHDMontvale, NJ1760944714
- Kenneth Blank, MDPompton Plains, NJ1205864964
Common questions
What is Shirnett K. Williamson, M.D.'s NPI number?
Shirnett K. Williamson, M.D.'s National Provider Identifier (NPI) is 1083785042, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shirnett K. Williamson, M.D. located?
The NPPES record lists a practice address at 1 Capital Way, Pennington, NJ, 08534. Phone: (609) 304-4000. Providers update this record themselves, so call before visiting.
How can I verify Shirnett K. Williamson, M.D.'s license?
NPPES lists New Jersey license number 25MA06401400, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Shirnett K. Williamson, M.D. prescribe under Medicare Part D?
In 2024, Shirnett K. Williamson, M.D. had 27 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Shirnett K. Williamson, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.