John B. Hein, MD
Listed as an allergist, with 3 practice addresses in Danvers, Haverhill, and Newburyport, Massachusetts.
Practice locations 3
Mass General Brigham Medical Group Northern Massachusetts Inc
1 Hutchinson Dr
Danvers, MA 01923Mass General Brigham Community Physicians Inc
1 Park Way
Haverhill, MA 01830Mass General Brigham Community Physicians Inc
260 Merrimac St
Newburyport, MA 01950
From the records
- Specialty
- Allergist
- Records
- Medicare records: allergy/immunology (October 2026).
- Medicare
- Accepts the Medicare-approved amount as payment in full (Medicare assignment), according to CMS’s file. This applies to Original Medicare; Medicare Advantage plans have their own networks. What assignment means
- Telehealth
- Medicare’s file shows recent telehealth visits. It doesn’t mean every visit can be by video.
- Medical school
- Medical College of Wisconsin, graduated 2000 (Medicare records)
- Registry record
- Last updated May 2011
- NPI
- 1649298050 (national provider registry)
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From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors