GREGORY T WILLIAMS MD
NPI 1043288848
Internal Medicine - Infectious Disease in Worcester, MA

Q: What is Gregory Williams's NPI number?

The NPI number for Gregory Williams is 1043288848. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Q: What is Gregory Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Williams was last updated on March 4, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since March 09, 2006

123 SUMMER STREET, SUITE 220 S, WORCESTER, MA 01608(508) 368-3122(508) 368-3121 Get Directions Write a Review

NPPES record last updated: March 4, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Gregory T Williams Md NPPES

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

GREGORY T WILLIAMS MD (NPI 1043288848) is an individual infectious disease provider in Worcester, Massachusetts, licensed in Massachusetts (79617) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1043288848

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameGREGORY T WILLIAMSCredential: MD

Location Address123 SUMMER STREET, SUITE 220 SWorcester, MA 01608

Mailing Address630 Plantation StWorcester, MA 01605 · (508) 368-3122 · Fax (508) 368-3121

Phone(508) 368-3122

Fax(508) 368-3121

Sole ProprietorNo

Enumeration DateMarch 9, 2006

Last NPPES UpdateMarch 4, 2009

✔ NPI 1043288848 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in MA · 79617

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedInternal MedicineTaxonomy 207R00000X · License 79617 (MA)

123 SUMMER STREET, Worcester, MA 01608

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Other Identifiers 20

Other042472266Private Healthcare System

OtherAA2844Harvard Pilgrim Healthcar

OtherJ14908Blue Shield Hmo Blue

Other042472266One Health Plan

Other26881Childrens Medical Securit

Other5218590Cigna Health Plan

Other784106Mvp Health Care

Other042472266Healthcare Value Manageme

OtherJ14908Blue Shield Idemnity

OtherJ14908Blue Care Elect

Other1061518First Health

Other9200061Evercare

Medicare ID-Type Unspecified110147355Railroad Medicare

Other26881Healthy Start

Other91119Fallon Community Health P

Medicare ID-Type UnspecifiedJ14908MA

Medicaid3130711MA

Other5237703Aetna Us Healthcare

Medicare UPINE29912

Medicare ID-Type UnspecifiedJ14908Medicare B

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.

DANIEL M STEIGMAN MD

Internal Medicine (Pulmonary Disease)

123 SUMMER STREET, SUITE 390
WORCESTER, MA 01608

Worcester County (508) 368-3120

TARUN JAYATHILAGAR MD

Student in an Organized Health Care Education/Training Program

123 SUMMER STREET, ST VINCENT HOSPITAL
WORCESTER, MA 01608

Worcester County (508) 363-5000

KHUSHI GOYAL MD

Student in an Organized Health Care Education/Training Program

123 SUMMER STREET, ST. VINCENT HOSPITAL
WORCESTER, MA 01608

Worcester County (508) 363-5000

ROBERT C HARIZI MD

Internal Medicine (Cardiovascular Disease)

123 SUMMER STREET
WORCESTER, MA 01608

Worcester County (508) 368-3130

CENTRAL MASS PEDIATRIC GI & NUTRITION, P.C.

Pediatrics (Pediatric Gastroenterology)

123 SUMMER STREET, SUITE 630
WORCESTER, MA 01608

Worcester County (508) 363-7344

IMAN MOULA MD

Student in an Organized Health Care Education/Training Program

123 SUMMER STREET, ST VINCENT HOSPITAL
WORCESTER, MA 01608

Worcester County (508) 363-5000

KEVIN B MARTIN MD

Internal Medicine (Pulmonary Disease)

123 SUMMER STREET, SUITE 390
WORCESTER, MA 01608

Worcester County (508) 368-3120

GARY L. PETERS MD

Specialist

123 SUMMER STREET, SUITE 320
WORCESTER, MA 01608

Worcester County (508) 368-3140

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 Gregory Williams's NPI number?

The NPI number for Gregory Williams is 1043288848. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Where is Gregory Williams located?

Gregory Williams practices at 123 Summer Street Suite 220 S, Worcester, MA 01608. The listed phone number is (508) 368-3122.

What is Gregory Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

When was this NPI record last updated?

The NPPES record for Gregory Williams was last updated on March 4, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.