NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ellis Mez, MD, PA

Internal Medicine Physician in Eldersburg, MD · enumerated 2006 · authorized official Ellis Mez, President.

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

National Provider Identifier

1578574422

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Ellis Mez, MD, PA
Practice address 1645 Liberty Rd, Suite 204, Eldersburg, MD, 21784
Phone (410) 795-7737
Fax (410) 795-2828
Enumeration date Aug 10, 2006
Last updated in NPPES Sep 15, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ellis Mez
Title President
Phone (410) 795-7737

Other identifiers

Identifier Type State Issuer
277541700 Medicaid MD -

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

Where is Ellis Mez, MD, PA located?
The practice location on file with NPPES is in Eldersburg, MD.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-09-15. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-15.