Mary Cassidy, N.P.
NPI 1568438729 · Adult Health Nurse Practitioner · Brookline, MA
Mary Cassidy, N.P. is a Adult Health Nurse Practitioner provider in Brookline, MA (NPI 1568438729).
Provider details
- NPI number
- 1568438729
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- License
- 129190 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Cassidy's NPI number?
- Mary Cassidy's National Provider Identifier (NPI) is 1568438729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Cassidy's specialty?
- Mary Cassidy is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Cassidy located?
- Mary Cassidy's practice location on file with NPPES is 11 Kent St, Brookline, MA 02445-7901.
- What is Mary Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Mary Cassidy is (617) 447-2147.
- Is Mary Cassidy's NPI active?
- Yes — Mary Cassidy's NPI (1568438729) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.