Judith Williamson, MD
Internal Medicine Physician · Trenton, NJ
Judith Williamson, MD is an internal medicine physician with a practice address in Trenton, New Jersey, and NPI 1114019676, issued on Sep 29, 2006. Check the license (New Jersey 25MA06145500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Judith Williamson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 25MA06145500 NJ
MA61455 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 750 Brunswick Ave, Trenton, NJ 08638
- Phone
- (609) 394-6000
- Enumerated
- Sep 29, 2006
- Record last updated
- May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 6433901 NJ
- Medicare enrollment
- Enrolled (PECOS I20050711000012); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 750 Brunswick Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Judith 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 25MA06145500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
355 Medicare Part D claims for 195 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium24 claims
- Cefuroxime24 claims
- Pantoprazole Sodium20 claims
- Amlodipine Besylate18 claims
- Amoxicillin-Clavulanate Potass18 claims
- Prednisone18 claims
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.
Industry payments in 2024: $38.22
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Capital Health Multispecialty GroupPennington, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Judith Williamson among 4,632 internal medicine physician records in New Jersey
Judith Williamson, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1986 · median 2000 among the 3,132 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
96 internal medicine physician records list a practice address in Trenton
They are 96 of the 1,480 NPPES records with a practice address in Trenton, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Trenton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Khadija Baig, MDTrenton, NJ 086381063404432
- Muhammad Bokhari, MDTrenton, NJ 086381346270089
- John Chung, M.D.Trenton, NJ 086381134224926
- Ghousia Hashmi, M.D.Trenton, NJ 086381912099045
- Shodhan Patel, MDTrenton, NJ 086381457368680
- Nilesh Rana, MDTrenton, NJ 086381083660443
- Shabbir Roowala, M.D.Trenton, NJ 086381851330757
- Eric Schwartz, MDTrenton, NJ 086381447266028
Common questions
What is Judith Williamson, MD's NPI number?
Judith Williamson, MD's National Provider Identifier (NPI) is 1114019676, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Judith Williamson, MD located?
The NPPES record lists a practice address at 750 Brunswick Ave, Trenton, NJ, 08638. Phone: (609) 394-6000. Providers update this record themselves, so call before visiting.
How can I verify Judith Williamson, MD's license?
NPPES lists New Jersey license number 25MA06145500, 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 Judith Williamson, MD prescribe under Medicare Part D?
In 2024, Judith Williamson, MD had 355 Medicare Part D claims for 195 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.