Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ann Hammi-Blue, D.D.S., M.S., P.C.

Periodontics in Phoenix, AZ · enumerated 2006.

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

National Provider Identifier

1174588941

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Registry record

Entity type Individual (Type 1)

Name Dr. Ann Hammi-Blue

Credential D.D.S., M.S., P.C.

Sex Female

Practice address 7725 N 43rd Ave, Suite 724, Phoenix, AZ, 85051

Phone (623) 934-1676

Fax (623) 934-6630

Enumeration date Apr 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License D5379 (AZ) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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 Ann Hammi-Blue?

Ann Hammi-Blue is registered in NPPES with the primary taxonomy of Periodontics. 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 2007-07-08.