Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allergy Consultants Medical Group Inc

Allergy Physician in Castro Valley, CA · enumerated 2006 · authorized official Dionisio Fernandes, President.

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

National Provider Identifier

1255399473

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Registry record

Entity type Organization (Type 2)

Legal business name Allergy Consultants Medical Group Inc

Practice address 20055 Lake Chabot Rd, Castro Valley, CA, 94546

Phone (510) 537-0700

Fax (510) 537-7795

Enumeration date May 4, 2006

Last updated in NPPES Jul 17, 2007

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License A294160 (CA) Primary

Authorized official

Name Dionisio Fernandes

Title President

Phone (510) 537-0700

Other identifiers

Identifier	Type	State	Issuer
GR0066330	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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-17. Verify at npiregistry.cms.hhs.gov.

Where is Allergy Consultants Medical Group Inc located?

The practice location on file with NPPES is in Castro Valley, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-17.