Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Ellen Hollis, PHARM.D.

Pharmacist in Deerfield Beach, FL · enumerated 2005.

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

National Provider Identifier

1619979242

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Ellen Hollis

Credential PHARM.D.

Sex Female

Practice address 3599 W Hillsboro Blvd, Deerfield Beach, FL, 33442

Phone (954) 333-5215

Fax (954) 333-5225

Enumeration date Aug 12, 2005

Last updated in NPPES Jan 2, 2012

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PS19731 (FL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Mary Ellen Hollis?

Mary Ellen Hollis 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-02.