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DOUGLAS A. JANOWSKI M.D.
NPI 1700803855
Internal Medicine - Gastroenterology in Boston, MA

Active since July 16, 2006
750 WASHINGTON ST, BOSTON, MA 02111(617) 636-5000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Douglas A. Janowski M.d. NPPES

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

DOUGLAS A. JANOWSKI M.D. (NPI 1700803855) is an individual gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (203367) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1700803855
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDOUGLAS A. JANOWSKICredential: M.D.
Location Address750 WASHINGTON STBoston, MA 02111-1526
Mailing Address750 Washington StBoston, MA 02111-1526 · (617) 636-5000
Phone(617) 636-5000
Sole ProprietorNo
Enumeration DateJuly 16, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1700803855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MA · 203367
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
750 WASHINGTON ST, Boston, MA 02111
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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.

KEIKO UEDA MPH, RD, LDN
Dietitian, Registered
750 WASHINGTON ST, TNEMC BOX#434
BOSTON, MA 02111
Suffolk County (617) 636-5458
COLLEEN MCARTOR CRNA
Nurse Anesthetist, Certified Registered
750 WASHINGTON ST, NEMC BOX #7105
BOSTON, MA 02111
Suffolk County (617) 636-5000
DR. KATHLEEN BUNGAY PHARMD, MS
Pharmacist (Psychiatric)
750 WASHINGTON ST, THE HEALTH INSTITUTE, BOX 345
BOSTON, MA 02111
Suffolk County (617) 636-3292
ALEXIS MADEJ M.S., R.D., L.D.N.
Dietitian, Registered
750 WASHINGTON ST, FRANCES STERN NUTRITION CENTER
BOSTON, MA 02111
Suffolk County (617) 636-5273
DR. NADINE YOUSSEF M.D.
Emergency Medicine
750 WASHINGTON ST, BOX 311 / DEPARTMENT OF EMERGENCY MEDICINE
BOSTON, MA 02111
Suffolk County (617) 636-4723
DR. GORDON M SAPERIA MD
Internal Medicine (Interventional Cardiology)
750 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-5000
ANBUKILI K. CHETTY M.D.
Pediatrics (Pediatric Pulmonology)
750 WASHINGTON ST, NEMC BOX #836
BOSTON, MA 02111
Suffolk County (617) 636-5000
KATIE WAKELEY M.D.
Obstetrics & Gynecology
750 WASHINGTON ST, NEMC BOX #836
BOSTON, MA 02111
Suffolk County (617) 636-5000

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 Douglas Janowski's NPI number?

The NPI number for Douglas Janowski is 1700803855. It was assigned to this individual provider in the NPPES registry on July 16, 2006.

Where is Douglas Janowski located?

Douglas Janowski practices at 750 Washington St, Boston, MA 02111. The listed phone number is (617) 636-5000.

What is Douglas Janowski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Douglas Janowski was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.