Joseph Williams, MD PC
NPI 1538330923 · Urology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Williams, MD PC is a Urology Physician provider in Philadelphia, PA (NPI 1538330923).
Provider details
- NPI number
- 1538330923
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PC
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD023619E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-13
- Last updated
- 2008-03-13
Frequently asked questions
- What is Joseph Williams's NPI number?
- Joseph Williams's National Provider Identifier (NPI) is 1538330923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Williams's specialty?
- Joseph Williams is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Williams located?
- Joseph Williams's practice location on file with NPPES is 5401 Old York Rd, Philadelphia, PA 19141-3030.
- What is Joseph Williams's phone number?
- The practice phone number listed in the NPPES registry for Joseph Williams is (215) 457-0700.
- Does Joseph Williams accept Medicare?
- Joseph Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Williams's NPI active?
- Yes — Joseph Williams's NPI (1538330923) is active in the NPPES registry as of the last update on 2008-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.