Mary Duffy, DNPC, FNP
NPI 1851534671 · Acute Care Nurse Practitioner · New York, NY
Mary Duffy, DNPC, FNP is a Acute Care Nurse Practitioner provider in New York, NY (NPI 1851534671).
Provider details
- NPI number
- 1851534671
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNPC, FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 26NJ00136400 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
- 2009-04-08
- Last updated
- 2018-04-25
Frequently asked questions
- What is Mary Duffy's NPI number?
- Mary Duffy's National Provider Identifier (NPI) is 1851534671, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Duffy's specialty?
- Mary Duffy is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Duffy located?
- Mary Duffy's practice location on file with NPPES is 177 Fort Washington Ave Fl 7, New York, NY 10032-3733.
- What is Mary Duffy's phone number?
- The practice phone number listed in the NPPES registry for Mary Duffy is (212) 305-0407.
- Is Mary Duffy's NPI active?
- Yes — Mary Duffy's NPI (1851534671) is active in the NPPES registry as of the last update on 2018-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.