NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Connie Hsu, MD

Allergy & Immunology Physician in Litchfield Park, AZ · enumerated 2006 · practices at Allergy & Immunology Specialists, LLC.

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

National Provider Identifier

1619916004

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Connie Hsu
Credential MD
Sex Female
Practice address 13575 W Indian School Rd Ste 200, Litchfield Park, AZ, 85340
Phone (623) 512-4310
Fax (602) 512-4311
Enumeration date Jun 4, 2006
Last updated in NPPES May 22, 2019

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 35528 (AZ) Primary
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
186990 Medicaid AZ -

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 → Validate an NPI →

Frequently asked questions

How do I verify Connie Hsu's NPI record?
Cross-check NPI 1619916004 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1619916004 active?
Yes, as of the latest NPPES snapshot, NPI 1619916004 is active (record last updated 2019-05-22).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-22.