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

ALLYSON MARIA HERNANDEZ MD
NPI 1669160321
Internal Medicine in Boston, MA

Active since April 28, 2023

NPPES record last updated: November 7, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Allyson Maria Hernandez Md NPPES

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

ALLYSON MARIA HERNANDEZ MD (NPI 1669160321) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (3019993) and active in the NPI registry since April 2023.

NPPES Registry Identity

NPI1669160321
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameALLYSON MARIA HERNANDEZCredential: MD
Location Address55 FRUIT STBoston, MA 02114-2621
Mailing Address55 Fruit StBoston, MA 02114-2621 · (617) 726-2000
Sole ProprietorNo
Enumeration DateApril 28, 2023
Last NPPES UpdateNovember 7, 2026
NPPES CertifiedNovember 7, 2026
✔ NPI 1669160321 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 · 3019993
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.
55 FRUIT ST, Boston, MA 02114

Other Providers at the Same Location NPPES 20

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

Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114

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 Allyson Hernandez's NPI number?

The NPI number for Allyson Hernandez is 1669160321. It was assigned to this individual provider in the NPPES registry on April 28, 2023.

Where is Allyson Hernandez located?

Allyson Hernandez practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.

What is Allyson Hernandez'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 Allyson Hernandez was last updated on November 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.