Martha Mcniff, NP
NPI 1518923358 · Psychiatric/Mental Health Nurse Practitioner · New York, NY
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Mcniff, NP is a Psychiatric/Mental Health Nurse Practitioner provider in New York, NY (NPI 1518923358).
Provider details
- NPI number
- 1518923358
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- F400770 (NY)
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
- 2006-04-21
- Last updated
- 2007-07-16
Frequently asked questions
- What is Martha Mcniff's NPI number?
- Martha Mcniff's National Provider Identifier (NPI) is 1518923358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Mcniff's specialty?
- Martha Mcniff is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Mcniff located?
- Martha Mcniff's practice location on file with NPPES is 423 E 23rd St, New York, NY 10010-5011.
- What is Martha Mcniff's phone number?
- The practice phone number listed in the NPPES registry for Martha Mcniff is (212) 686-7500.
- Does Martha Mcniff accept Medicare?
- Martha Mcniff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Mcniff's NPI active?
- Yes — Martha Mcniff's NPI (1518923358) is active in the NPPES registry as of the last update on 2007-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.