What is Anne Marie Demarco-O'Keefe's NPI number?

Anne Marie Demarco-O'Keefe's National Provider Identifier (NPI) is 1689647612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Anne Marie Demarco-O'Keefe's specialty?

Anne Marie Demarco-O'Keefe is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Anne Marie Demarco-O'Keefe located?

Anne Marie Demarco-O'Keefe's practice location on file with NPPES is 100 Madison Ave, Morristown, NJ 07960-6136.

What is Anne Marie Demarco-O'Keefe's phone number?

The practice phone number listed in the NPPES registry for Anne Marie Demarco-O'Keefe is (973) 971-6720.

Does Anne Marie Demarco-O'Keefe accept Medicare?

Anne Marie Demarco-O'Keefe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Anne Marie Demarco-O'Keefe's NPI active?

Yes — Anne Marie Demarco-O'Keefe's NPI (1689647612) is active in the NPPES registry as of the last update on 2010-12-14.

IndividualActiveAccepts Medicare

Anne Marie Demarco-O'Keefe, APN

NPI 1689647612 · Pediatric Nurse Practitioner · Morristown, NJ

Anne Marie Demarco-O'Keefe, APN is a Pediatric Nurse Practitioner provider in Morristown, NJ (NPI 1689647612).

Provider details

NPI number: 1689647612
Entity type: Individual
Primary specialty: Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: APN
Sex: Female
Sole proprietor: No
License: 26NN07709300 (NJ)

Practice location

100 Madison Ave

Morristown, NJ 07960-6136

Phone: (973) 971-6720

Fax: (973) 401-2410

Approximate (ZIP-level) locationGet directions

More NJ providers

Mailing address

100 Madison Ave

Morristown, NJ 07960-6136

Specialties & taxonomies

Pediatric Nurse PractitionerPrimary363LP0200XLicense 26NN07709300 (NJ)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

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.

Enumerated: 2006-02-09
Last updated: 2010-12-14

Frequently asked questions

What is Anne Marie Demarco-O'Keefe's NPI number?: Anne Marie Demarco-O'Keefe's National Provider Identifier (NPI) is 1689647612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Anne Marie Demarco-O'Keefe's specialty?: Anne Marie Demarco-O'Keefe is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Anne Marie Demarco-O'Keefe located?: Anne Marie Demarco-O'Keefe's practice location on file with NPPES is 100 Madison Ave, Morristown, NJ 07960-6136.
What is Anne Marie Demarco-O'Keefe's phone number?: The practice phone number listed in the NPPES registry for Anne Marie Demarco-O'Keefe is (973) 971-6720.
Does Anne Marie Demarco-O'Keefe accept Medicare?: Anne Marie Demarco-O'Keefe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Anne Marie Demarco-O'Keefe's NPI active?: Yes — Anne Marie Demarco-O'Keefe's NPI (1689647612) is active in the NPPES registry as of the last update on 2010-12-14.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions