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Ms. Barbara Ann Karrer, RN, MS, CNNP

Critical Care Neonatal Nurse Practitioner in Detroit, MI · enumerated 2006.

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

National Provider Identifier

1386720357

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Registry record

Entity type Individual (Type 1)
Name Ms. Barbara Ann Karrer
Credential RN, MS, CNNP
Sex Female
Practice address 2799 W Grand Blvd, Detroit, MI, 48202
Phone (313) 916-3146
Fax (313) 916-9485
Enumeration date Oct 31, 2006
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4704121953 (MI) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Where does Barbara Karrer practice?
The practice location on file with NPPES is in Detroit, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Barbara Karrer?
The National Provider Identifier (NPI) for Barbara Karrer is 1386720357, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.