Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Peggy Sue Mason, CRNA
Specialist in Fairmont, MN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811987795
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Registry record
Entity type Individual (Type 1)
Name Peggy Sue Mason
Credential CRNA
Sex Female
Practice address 835 Johnson St, Fairmont, MN, 56031
Phone (507) 238-8100
Fax (507) 238-8642
Enumeration date Oct 24, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care.
About the CRNA 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 Peggy Mason practice?
The practice location on file with NPPES is in Fairmont, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Peggy Mason?
The National Provider Identifier (NPI) for Peggy Mason is 1811987795, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.