Mary Frey, GNP - BC
NPI 1215175849 · Gerontology Nurse Practitioner · Waltham, MA
Mary Frey, GNP - BC is a Gerontology Nurse Practitioner provider in Waltham, MA (NPI 1215175849).
Provider details
- NPI number
- 1215175849
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- GNP - BC
- Sex
- Female
- Sole proprietor
- No
- License
- NP36928 (RI)
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
17 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
- 2009-02-04
- Last updated
- 2009-02-04
Frequently asked questions
- What is Mary Frey's NPI number?
- Mary Frey's National Provider Identifier (NPI) is 1215175849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Frey's specialty?
- Mary Frey is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Frey located?
- Mary Frey's practice location on file with NPPES is 950 Winter St, Waltham, MA 02451-1424.
- What is Mary Frey's phone number?
- The practice phone number listed in the NPPES registry for Mary Frey is (781) 472-8569.
- Is Mary Frey's NPI active?
- Yes — Mary Frey's NPI (1215175849) is active in the NPPES registry as of the last update on 2009-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.