Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Oncology Specialties, P.C.

Hematology & Oncology Physician in Huntsville, AL · enumerated 2006 · authorized official Marshall Schreeder, Physician.

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

National Provider Identifier

1669425716

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Registry record

Entity type Organization (Type 2)

Legal business name Oncology Specialties, P.C.

Practice address 3601 Cci Dr Nw, Huntsville, AL, 35805

Phone (256) 705-4224

Fax (256) 705-4135

Enumeration date May 18, 2006

Last updated in NPPES Dec 17, 2025

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marshall Schreeder

Title Physician

Phone (256) 705-4224

Other identifiers

Identifier	Type	State	Issuer
510-50070	Other	AL	BCBS OF ALABAMA
528701110	Medicaid	AL	-
CA0084	Other	AL	RAILROAD MEDICARE

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

Where is Oncology Specialties, P.C. located?

The practice location on file with NPPES is in Huntsville, AL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-12-17. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-17.