Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Catherine Marie Marshall, RDH
Dental Hygienist in Boston, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306040027
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Registry record
Entity type Individual (Type 1)
Name Mrs. Catherine Marie Marshall
Credential RDH
Sex Female
Practice address 250 Washington St, Boston, MA, 02108
Phone (617) 624-5573
Enumeration date Jun 14, 2007
Last updated in NPPES Nov 15, 2010
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
Where does Catherine Marshall practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Catherine Marshall?
The National Provider Identifier (NPI) for Catherine Marshall is 1306040027, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Helen Holly Hackman Public Health & General Preventive Medicine Physician · Boston, MA NPI 1871692624 Department of Public Health - Early Intervention Program Public Health or Welfare Agency · Boston, MA NPI 1760505861 Julie Schaeffer Nutritionist · Boston, MA NPI 1245403450 Matthew Horan Dentist · Boston, MA NPI 1447411079 Emily White Behavior Analyst · Boston, MA NPI 1265742795 Massachusetts Department of Public Health Public Health or Welfare Agency · Boston, MA NPI 1326340068 Katelyn Vaughn Adult Health Nurse Practitioner · Boston, MA NPI 1598044703 Laura Pargas Dental Hygienist · Boston, MA NPI 1114290095
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-15.