Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Marcia L Stien, N.P.
Nurse Practitioner in El Cajon, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760595789
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Registry record
Entity type Individual (Type 1)
Name Ms. Marcia L Stien
Credential N.P.
Sex Female
Practice address 1240 Broadway, El Cajon, CA, 92021
Phone (858) 499-2706
Enumeration date Aug 16, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN335329 (CA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| RN335329 | Medicaid | CA | - |
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
Where does Marcia Stien practice?
The practice location on file with NPPES is in El Cajon, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marcia Stien?
The National Provider Identifier (NPI) for Marcia Stien is 1760595789, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.