JASON WILLIAMS GILLEYLEN M.D.
NPI 1538435227
Student in an Organized Health Care Education/Training Program in Boston, MA

Active since March 27, 2012
110 FRANCIS ST, SUITE 9B, BOSTON, MA 02215(617) 637-9236 Get Directions Write a Review

NPPES record last updated: March 27, 2012. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Jason Williams Gilleylen M.d. NPPES

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

JASON WILLIAMS GILLEYLEN M.D. (NPI 1538435227) is an individual student in an organized health care education/training program in Boston, Massachusetts and active in the NPI registry since March 2012.

NPPES Registry Identity

NPI1538435227
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameJASON WILLIAMS GILLEYLENCredential: M.D.
Location Address110 FRANCIS ST, SUITE 9BBoston, MA 02215-5501
Mailing Address110 Francis St, Suite 9bBoston, MA 02215-5501 · (617) 637-9236
Sole ProprietorNo
Enumeration DateMarch 27, 2012
NPI 1538435227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
110 FRANCIS ST, Boston, MA 02215

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.

Physician Assistant (Surgical)
110 FRANCIS ST
BOSTON, MA 02215
Internal Medicine (Geriatric Medicine)
110 FRANCIS ST, LMOB SUITE 1A
BOSTON, MA 02215
Internal Medicine (Rheumatology)
110 FRANCIS ST
BOSTON, MA 02215
Audiologist
110 FRANCIS ST, LOWRY BUILDING 6-E
BOSTON, MA 02215
Internal Medicine (Infectious Disease)
110 FRANCIS ST, LOWRY BUILDING SUITE GB
BOSTON, MA 02215
Internal Medicine (Gastroenterology)
110 FRANCIS ST, SUITE 8E
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
110 FRANCIS ST, SUITE 1B
BOSTON, MA 02215
Internal Medicine (Infectious Disease)
110 FRANCIS ST, LMOB SUITE G-B
BOSTON, MA 02215

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 Jason Gilleylen's NPI number?

The NPI number for Jason Gilleylen is 1538435227. It was assigned to this individual provider in the NPPES registry on March 27, 2012.

Where is Jason Gilleylen located?

Jason Gilleylen practices at 110 Francis St Suite 9B, Boston, MA 02215. The listed phone number is (617) 637-9236.

What is Jason Gilleylen's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for Jason Gilleylen was last updated on March 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.