Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Prof. Margaret Elizabeth Blettner, RN
Registered Nurse in Carmel, IN · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1316225105
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Registry record
Entity type Individual (Type 1)
Name Prof. Margaret Elizabeth Blettner
Credential RN
Sex Female
Practice address 11590 N Meridian St, Suite 400, Carmel, IN, 46032
Phone (317) 708-2839
Fax (317) 708-2877
Enumeration date Jul 27, 2011
Last updated in NPPES Jul 27, 2011
Taxonomy & licenses
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.
Frequently asked questions
Where does Margaret Blettner practice?
The practice location on file with NPPES is in Carmel, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Margaret Blettner?
The National Provider Identifier (NPI) for Margaret Blettner is 1316225105, 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 2011-07-27.