Mary Haggerty, MD
NPI 1770551988 · Geriatric Medicine (Internal Medicine) Physician · Maplewood, NJ
Mary Haggerty, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Maplewood, NJ (NPI 1770551988).
Provider details
- NPI number
- 1770551988
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- 25MA03779300 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-03-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Haggerty's NPI number?
- Mary Haggerty's National Provider Identifier (NPI) is 1770551988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Haggerty's specialty?
- Mary Haggerty is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Haggerty located?
- Mary Haggerty's practice location on file with NPPES is 2115 Millburn Ave, Maplewood, NJ 07040-3724.
- What is Mary Haggerty's phone number?
- The practice phone number listed in the NPPES registry for Mary Haggerty is (973) 275-1322.
- Is Mary Haggerty's NPI active?
- Yes — Mary Haggerty's NPI (1770551988) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.