James Hadler, M.D.
NPI 1528413879 · Public Health & General Preventive Medicine Physician · New Haven, CT
James Hadler, M.D. is a Public Health & General Preventive Medicine Physician provider in New Haven, CT (NPI 1528413879).
Provider details
- NPI number
- 1528413879
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 022856 (CT)
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
10 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
- 2016-04-24
- Last updated
- 2016-04-24
Frequently asked questions
- What is James Hadler's NPI number?
- James Hadler's National Provider Identifier (NPI) is 1528413879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Hadler's specialty?
- James Hadler is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Hadler located?
- James Hadler's practice location on file with NPPES is 172 E Rock Rd, New Haven, CT 06511-1326.
- What is James Hadler's phone number?
- The practice phone number listed in the NPPES registry for James Hadler is (203) 772-1746.
- Is James Hadler's NPI active?
- Yes — James Hadler's NPI (1528413879) is active in the NPPES registry as of the last update on 2016-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.