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Dr. William Karl Andersen, MD

Dermatology Physician in Lancaster, PA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538135900

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Registry record

Entity type Individual (Type 1)
Name Dr. William Karl Andersen
Credential MD
Sex Male
Practice address 190 N Pointe Blvd, Ste 1, Lancaster, PA, 17601
Phone (717) 560-6444
Fax (717) 569-1044
Enumeration date Feb 27, 2006
Last updated in NPPES Dec 7, 2007

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD061425L (PA) Primary
207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License MD061425L (PA) Secondary
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License MD061425L (PA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for William Andersen?
The National Provider Identifier (NPI) for William Andersen is 1538135900, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Andersen practice?
The practice location on file with NPPES is in Lancaster, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-07.