Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jeffrey F Williams, M.D.
Urology Physician in Glen Ridge, NJ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225007438
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Registry record
Entity type Individual (Type 1)
Name Dr. Jeffrey F Williams
Credential M.D.
Sex Male
Practice address 311 Bay Ave Ste 200, Glen Ridge, NJ, 07028
Phone (973) 429-0462
Fax (973) 429-8765
Enumeration date Mar 17, 2006
Last updated in NPPES Mar 10, 2022
Taxonomy & licenses
208800000X Urology Physician Allopathic & Osteopathic Physicians · License MA07281700 (NJ) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 25MA07281700 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8577307 | Medicaid | NJ | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Jeffrey Williams?
The National Provider Identifier (NPI) for Jeffrey Williams is 1225007438, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jeffrey Williams practice?
The practice location on file with NPPES is in Glen Ridge, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-10.