NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lauren Shin Hiyama, M.D.

Allergy & Immunology Physician in Fresno, CA · enumerated 2006.

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

National Provider Identifier

1215025275

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Registry record

Entity type Individual (Type 1)
Name Dr. Lauren Shin Hiyama
Credential M.D.
Sex Male
Practice address 7471 N Fresno St, Fresno, CA, 93720
Fax (559) 261-1526
Enumeration date Oct 11, 2006
Last updated in NPPES Jun 23, 2015

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License A84500 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A84500 (CA) Secondary
207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A84500 (CA) Secondary
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
ZZZ21572Z Other CA MEDICARE PTAN FOR ALL OFFICE LOCATIONS UNDER BAZ ALLERGY, ASTHMA & SINUS CENTER
GR0043790 Medicaid CA -

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 Lauren Hiyama?
Lauren Hiyama is registered in NPPES with the primary taxonomy of Allergy & Immunology 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 2015-06-23.