Allan S Davis MD
Allan S Davis MD is a healthcare organization registered as Hematology & Oncology Physician in Lancaster, PA, holding Type 2 (organization) NPI 1033391172 since 2007. The authorized official on file is Allan Davis, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1033391172 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Allan S Davis MD |
| Practice address | 231 N SHIPPEN ST, Lancaster, PA, 17602 |
| Phone | 7172955444 |
| Fax | 7172957910 |
| Enumeration date | 2007-11-30 |
| Last updated in NPPES | 2010-12-08 |
Authorized official
| Name | Allan Davis |
|---|---|
| Title | Owner |
| Phone | 7172955444 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RH0003X | Hematology & Oncology Physician | Primary | MD026821E | PA |
Copy-ready billing details
Provider: Allan S Davis MD NPI: 1033391172 Taxonomy: 207RH0003X (Hematology & Oncology Physician) Address: 231 N SHIPPEN ST, Lancaster, PA, 17602
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1194725994 | Maria Corazon Fernando | Individual | Psychiatry Physician | Lancaster, PA |
| 1881686012 | Melissa Brown | Individual | Psychologist | Lancaster, PA |
| 1114016284 | Allan Davis | Individual | Hematology & Oncology Physician | Lancaster, PA |
| 1487773974 | Fernando MD & Associates | Organization | Psychiatry Physician | Lancaster, PA |
| 1679790166 | Allan S Davis M.D, | Organization | Clinical Medical Laboratory | Lancaster, PA |
| 1659559714 | Fernando MD & Associates, LLC | Organization | Psychiatry Physician | Lancaster, PA |
| 1780433961 | Inlight Expressway LLC | Organization | Non-emergency Medical Transport (VAN) | Lancaster, PA |
Verify this record
Cross-check NPI 1033391172 against the authoritative CMS record: view Allan S Davis MD on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What is a Type 2 NPI?
What type of organization is Allan S Davis MD?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-12-08.