Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Maria Theresa De Rosas, AGPCNP-BC
Nurse Practitioner in Addison, IL · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366000341
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Registry record
Entity type Individual (Type 1)
Name Maria Theresa De Rosas
Credential AGPCNP-BC
Sex Female
Practice address 715 W Lake St Ste 104, Addison, IL, 60101
Phone (630) 366-6681
Fax (630) 366-6550
Enumeration date Jun 4, 2019
Last updated in NPPES Apr 9, 2021
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.019401 (IL) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209019401 (IL) Primary
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.
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 Maria Theresa De Rosas?
Maria Theresa De Rosas is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-09.