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Dr. Phillip L Day, MD

Clinical Pathology/Laboratory Medicine Physician in Killeen, TX · enumerated 2005.

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

National Provider Identifier

1538151659

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Registry record

Entity type Individual (Type 1)
Name Dr. Phillip L Day
Credential MD
Sex Male
Practice address 2201 S Clear Creek Rd, Killeen, TX, 76549
Phone (254) 526-7523
Fax (254) 526-2801
Enumeration date Aug 16, 2005
Last updated in NPPES Feb 26, 2008

Taxonomy & licenses

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License E8420 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
83P580 Other TX BCBS OF TEXAS

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Phillip Day?
Phillip Day is registered in NPPES with the primary taxonomy of Clinical Pathology/Laboratory Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-26.