Are you William S. Mark, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 143 Church St, Phoenixville, PA 19460
About Dr. Mark
Based in Phoenixville, PA, William S. Mark, M.D. is listed in the NPI registry under internal medicine. NPI 1396955522 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (610) 935-1134
- Email not available
Practice Locations
143 CHURCH ST
Phoenixville, PA 19460
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 7 related providers in 1 group
Common questions
What kind of doctor is William S. Mark?
William S. Mark is an internist in Phoenixville, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is William S. Mark's address?
William S. Mark is listed at 143 Church St, Phoenixville, PA 19460. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with William S. Mark?
The number on file is (610) 935-1134. Contact the office directly to confirm availability and scheduling.
NPI registry
What is William S. Mark's NPI number?
William S. Mark's National Provider Identifier is 1396955522. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has William S. Mark been practicing?
William S. Mark has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has William S. Mark confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William S. Mark. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.