Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gretchen V. Blondeau, PHARM.D., R.PH.

Pharmacist in Slidell, LA · enumerated 2005.

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

National Provider Identifier

1730164575

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Registry record

Entity type Individual (Type 1)

Name Dr. Gretchen V. Blondeau

Credential PHARM.D., R.PH.

Sex Female

Practice address 1001 Gause Blvd, Slidell, LA, 70458

Phone (985) 649-8523

Fax (985) 649-8628

Enumeration date Dec 14, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 13649 (LA) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 Gretchen Blondeau?

Gretchen Blondeau is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Kraig De Lanzac Anesthesiology Physician · Slidell, LA NPI 1609879139 Melvin Ferlita Anesthesiology Physician · Slidell, LA NPI 1427051952 Matthew Miller Anesthesiology Physician · Slidell, LA NPI 1245233774 Jason Rigol Anesthesiology Physician · Slidell, LA NPI 1326041856 Darren Ruiz Anesthesiology Physician · Slidell, LA NPI 1053314583 Smh Professional Serv at Smh Pain Medicine (Anesthesiology) Physician · Slidell, LA NPI 1942203476 Susan Aycock Certified Registered Nurse Anesthetist · Slidell, LA NPI 1003819533 Catherine Marrione Certified Registered Nurse Anesthetist · Slidell, LA NPI 1093718512

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.