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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GEORGE A HASIOTIS MD
NPI 1386631844
Internal Medicine in Boston, MA

Active since September 30, 2005
65 E INDIA ROW, #32A, BOSTON, MA 02110(617) 367-6366(508) 778-9677 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About George A Hasiotis Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GEORGE A HASIOTIS MD (NPI 1386631844) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (29397) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1386631844
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGEORGE A HASIOTISCredential: MD
Location Address65 E INDIA ROW, #32ABoston, MA 02110-3308
Mailing Address65 E India Row, #32aBoston, MA 02110-3308 · (617) 367-6366 · Fax (508) 778-9677
Phone(617) 367-6366
Fax(508) 778-9677
Sole ProprietorNo
Enumeration DateSeptember 30, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1386631844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 29397
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
65 E INDIA ROW, Boston, MA 02110
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Other Identifiers 1

Medicaid0137863MA

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOAN KATZ M.D.
Preventive Medicine (Public Health & General Preventive Medicine)
65 E INDIA ROW, APT. NO. 5A
BOSTON, MA 02110
Suffolk County (617) 367-8887

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is George Hasiotis's NPI number?

The NPI number for George Hasiotis is 1386631844. It was assigned to this individual provider in the NPPES registry on September 30, 2005.

Where is George Hasiotis located?

George Hasiotis practices at 65 E India Row #32a, Boston, MA 02110. The listed phone number is (617) 367-6366.

What is George Hasiotis's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for George Hasiotis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.