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Dr. Gregory James Zahnerverified Is this you? Manage your online reputation

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Specialty iconSpecialtiesInternal Medicine
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Location iconLocationBoston, MA
BioiconBio:
Exceptional care and expertise in internal medicine, focused on your h...
ExperienceiconExperience:
5 years
Based on NPI number.
Language SpokeniconLanguage Spoken:
English
Common TreatmentsiconCommon Treatments:
Constipation
Institutes AttendediconInstitutes Attended:
UCSF, 
MA, 
ABIM
CertificatesiconCertificates:
MD, 
SML, 
BCIM
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Common TreatmentsiconCommon Treatments:
Constipation
Institutes AttendediconInstitutes Attended:
UCSF, 
MA, 
ABIM
CertificatesiconCertificates:
MD, 
SML, 
BCIM
specOverview
Dr. Gregory James Zahner is a dedicated internist based in Boston, MA, with dual affiliations at Massachusetts General Hospital and IU Health Methodist Hospital. He graduated from the University of California San Francisco School of Medicine in 2020. With a focus on Internal Medicine, Dr. Zahner has developed expertise in managing a range of health issues, particularly constipation....
specPractice
insurance
In-network insurance
Aetna
Cigna
Medicare
ConnectiCare
First Health
Humana
insurance
Appointments Scheduling
Massachusetts General Hospital
Avatar iconIn-Person Visit
location icon

Address:

55 Fruit St, Boston, MA 02114
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Phone:

(617) 726-2000

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Fax:

(617) 724-7290

specAbout
NPI/License numbericonNPI/License number:
1427685767
ExperienceiconExperience:
5 years
Based on NPI number.
Language SpokeniconLanguage Spoken:
English
Hospital AffiliationsiconHospital Affiliations:
Iu Health Methodist Hospital
Massachusetts General Hospital
SpecialtiesiconSpecialties:
Internal Medicine
General Internal Medicine
Common TreatmentsiconCommon Treatments:
Constipation
Education IconEducation & Certifications:
Education Icon
State Medical License
Massachusetts Board of Registration In Medicine2026
Education Icon
Board Certification in Internal Medicine
American Board of Internal Medicine2026
Education Icon
Medical Degree
University of California San Francisco School of Medicine2020
Education Icon
Medical Degree
University of California San Francisco School of Medicine2017