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Allan S Davis MD

Hematology & Oncology Physician in Lancaster, PA · enumerated 2007 · authorized official Allan Davis, Owner.

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

National Provider Identifier

1033391172

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Registry record

Entity type Organization (Type 2)
Legal business name Allan S Davis MD
Practice address 231 N Shippen St, Lancaster, PA, 17602
Phone (717) 295-5444
Fax (717) 295-7910
Enumeration date Nov 30, 2007
Last updated in NPPES Dec 8, 2010

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License MD026821E (PA) Primary

Authorized official

Name Allan Davis
Title Owner
Phone (717) 295-5444

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Allan S Davis MD?
Allan S Davis MD is registered in NPPES as a Hematology & Oncology Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-08.