G. Michael Mahoney, MD
NPI 1558377291 · Emergency Medicine Physician · Newburyport, MA
G. Michael Mahoney, MD is a Emergency Medicine Physician provider in Newburyport, MA (NPI 1558377291).
Provider details
- NPI number
- 1558377291
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 229488 (MA)
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
19 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
- 2006-08-01
- Last updated
- 2008-04-18
Frequently asked questions
- What is G. Michael Mahoney's NPI number?
- G. Michael Mahoney's National Provider Identifier (NPI) is 1558377291, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is G. Michael Mahoney's specialty?
- G. Michael Mahoney is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is G. Michael Mahoney located?
- G. Michael Mahoney's practice location on file with NPPES is 25 Highland Ave, Newburyport, MA 01950-3867.
- What is G. Michael Mahoney's phone number?
- The practice phone number listed in the NPPES registry for G. Michael Mahoney is (978) 463-1050.
- Is G. Michael Mahoney's NPI active?
- Yes — G. Michael Mahoney's NPI (1558377291) is active in the NPPES registry as of the last update on 2008-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.