Luis Michael Diaz, MD

Luis Michael Diaz is a Surgery Physician provider (Surgery) practicing in Biloxi, MS, registered in the NPPES registry with NPI 1245436815 since 2007. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1245436815
Entity type	Individual (Type 1)
Name	Luis Michael Diaz
Credential	MD
Sex	Male
Practice address	Biloxi, MS, 39532
Phone	2283962663
Fax	2283962664
Enumeration date	2007-06-21
Last updated in NPPES	2012-08-20

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
208600000X	Surgery Physician	Primary	19063	MS

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
260367832	Other	MS	TAX ID

Copy-ready billing details

Provider: Luis Diaz, MD
NPI: 1245436815
Taxonomy: 208600000X (Surgery Physician)
Address: Biloxi, MS, 39532

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1114597044	Memorie Gaughf	Individual	Family Nurse Practitioner	Biloxi, MS

Verify this record

Cross-check NPI 1245436815 against the authoritative CMS record: view Luis Michael Diaz 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

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 Luis Diaz?

Luis Diaz is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-08-20.