Michael Donnelly, MD
NPI 1255310330 · Geriatric Medicine (Internal Medicine) Physician · Chester, NJ
Michael Donnelly, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Chester, NJ (NPI 1255310330).
Provider details
- NPI number
- 1255310330
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25MA05194300 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2006-01-17
- Last updated
- 2008-02-20
Frequently asked questions
- What is Michael Donnelly's NPI number?
- Michael Donnelly's National Provider Identifier (NPI) is 1255310330, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Donnelly's specialty?
- Michael Donnelly is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Donnelly located?
- Michael Donnelly's practice location on file with NPPES is 530 Main St, Chester, NJ 07930-2669.
- What is Michael Donnelly's phone number?
- The practice phone number listed in the NPPES registry for Michael Donnelly is (973) 879-4941.
- Is Michael Donnelly's NPI active?
- Yes — Michael Donnelly's NPI (1255310330) is active in the NPPES registry as of the last update on 2008-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.