Owen W Williamson MD PC
NPI 1326284753 · Internal Medicine Physician · Philadelphia, PA
Owen W Williamson MD PC is a Internal Medicine Physician organization in Philadelphia, PA (NPI 1326284753).
Provider details
- NPI number
- 1326284753
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Owen Williamson, Physician/Owner(215) 739-2057
- License
- MD021602E (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
17 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
- 2009-01-07
- Last updated
- 2009-01-07
Frequently asked questions
- What is Owen W Williamson MD PC's NPI number?
- Owen W Williamson MD PC's National Provider Identifier (NPI) is 1326284753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Owen W Williamson MD PC?
- Owen W Williamson MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Owen W Williamson MD PC located?
- Owen W Williamson MD PC's practice location on file with NPPES is 121 E Lehigh Ave, Philadelphia, PA 19125-1011.
- What is Owen W Williamson MD PC's phone number?
- The practice phone number listed in the NPPES registry for Owen W Williamson MD PC is (215) 739-2057.
- Who is the authorized official for Owen W Williamson MD PC?
- The authorized official listed on Owen W Williamson MD PC's NPPES record is Owen Williamson, Physician/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Owen W Williamson MD PC's NPI active?
- Yes — Owen W Williamson MD PC's NPI (1326284753) is active in the NPPES registry as of the last update on 2009-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.