Mary Singer, MS,APRN-BC,AOCN
NPI 1649399759 · Adult Health Nurse Practitioner · Boston, MA
Mary Singer, MS,APRN-BC,AOCN is a Adult Health Nurse Practitioner provider in Boston, MA (NPI 1649399759).
Provider details
- NPI number
- 1649399759
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS,APRN-BC,AOCN
- Sex
- Female
- Sole proprietor
- No
- License
- 142885 (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
19 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
- 2007-03-28
- Last updated
- 2007-07-09
Frequently asked questions
- What is Mary Singer's NPI number?
- Mary Singer's National Provider Identifier (NPI) is 1649399759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Singer's specialty?
- Mary Singer is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Singer located?
- Mary Singer's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Mary Singer's phone number?
- The practice phone number listed in the NPPES registry for Mary Singer is (617) 643-4271.
- Is Mary Singer's NPI active?
- Yes — Mary Singer's NPI (1649399759) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.