William K. Sherwin MD PHD
About this NPIWhat this record shows.
NPI 1629010236 is registered to William K. Sherwin MD PHD, a healthcare organisation classified as "Dermatology" and located at 1 Bala Plaza, Suite 620 in Bala Cynwyd, Pennsylvania. The organisation's authorised official is Mary Griffin. The organisation has been enumerated in the NPI registry since 2006.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Part B Supplier
- O20040614000300Clinic/Group PracticePA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans William K. Sherwin MD PHD accepts. To confirm in-network status with your specific health plan, contact William K. Sherwin MD PHD directly at (610) 664-3300.
Frequently asked
Yes. NPI 1629010236 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Dermatology is a medical specialty focused on conditions affecting the skin, hair, and nails, including acne, eczema, psoriasis, skin cancer screenings, and cosmetic procedures.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (610) 664-3300.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. William K. Sherwin MD PHD is a Type-2 organisational NPI.