Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Graves
Counselor in Nantucket, MA · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013471192
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Registry record
Entity type Individual (Type 1)
Name Mary Graves
Sex Female
Practice address 20 Vesper Ln, Nantucket, MA, 02554
Phone (508) 228-2689
Enumeration date Jan 23, 2019
Last updated in NPPES Jan 23, 2019
Taxonomy & licenses
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
What is the NPI number for Mary Graves?
The National Provider Identifier (NPI) for Mary Graves is 1013471192, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Graves practice?
The practice location on file with NPPES is in Nantucket, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Fairwinds-Nantuckets Counseling Center Community/Behavioral Health Agency · Nantucket, MA NPI 1275621385 Athalyn Sweeney Clinical Social Worker · Nantucket, MA NPI 1720389836 Daniel Norris Clinical Social Worker · Nantucket, MA NPI 1225339245 Kristie Wilson Counselor · Nantucket, MA NPI 1912209297 Elizabeth Feeley Clinical Social Worker · Nantucket, MA NPI 1689966079 Ana Hull Student in an Organized Health Care Education/Training Program · Nantucket, MA NPI 1609153923 Jaclyn Normand Counselor · Nantucket, MA NPI 1588936454 Peter Swenson Behavior Analyst · Nantucket, MA NPI 1689005365
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-23.