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National Allergy Center, Inc.

Allergy & Immunology Physician in Redwood City, CA · enumerated 2018 · authorized official Whitney Block, Nurse Practitioner.

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

National Provider Identifier

1497246714

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Registry record

Entity type Organization (Type 2)
Legal business name National Allergy Center, Inc.
Practice address 2900 Whipple Ave Ste 132, Redwood City, CA, 94062
Phone (855) 346-3648
Fax (855) 346-3648
Enumeration date May 22, 2018
Last updated in NPPES May 22, 2018

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Whitney Block
Title Nurse Practitioner
Phone (404) 216-5728

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

What is the NPI number for National Allergy Center, Inc.?
The NPI for National Allergy Center, Inc. is 1497246714, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for National Allergy Center, Inc.?
NPPES lists Whitney Block (Nurse Practitioner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-22.