William K. Sherwin MD PHD
NPI 1629010236 · Dermatology Physician · Bala Cynwyd, PA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William K. Sherwin MD PHD is a Dermatology Physician organization in Bala Cynwyd, PA (NPI 1629010236).
Provider details
- NPI number
- 1629010236
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mary Griffin, President(610) 664-3300
- License
- MD018002E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Plastic Surgery Physician208200000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Other names (DBA / former)
- Doing business as
- Bala Dermatology
Registry dates
- Enumerated
- 2006-06-11
- Last updated
- 2021-05-03
- Certified
- 2021-05-03
Frequently asked questions
- What is William K. Sherwin MD PHD's NPI number?
- William K. Sherwin MD PHD's National Provider Identifier (NPI) is 1629010236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William K. Sherwin MD PHD?
- William K. Sherwin MD PHD is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is William K. Sherwin MD PHD located?
- William K. Sherwin MD PHD's practice location on file with NPPES is 1 Bala Plaza, Bala Cynwyd, PA 19004.
- What is William K. Sherwin MD PHD's phone number?
- The practice phone number listed in the NPPES registry for William K. Sherwin MD PHD is (610) 664-3300.
- Does William K. Sherwin MD PHD accept Medicare?
- William K. Sherwin MD PHD is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William K. Sherwin MD PHD?
- The authorized official listed on William K. Sherwin MD PHD's NPPES record is Mary Griffin, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William K. Sherwin MD PHD's NPI active?
- Yes — William K. Sherwin MD PHD's NPI (1629010236) is active in the NPPES registry as of the last update on 2021-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.