DR. WILLIAM STEPHEN GEFVERT DO
NPI 1629284344
Internal Medicine in Saco, ME

Active since May 16, 2007
655 MAIN ST, SACO, ME 04072(207) 602-3571(207) 602-3573 Get Directions Write a Review

NPPES record last updated: February 5, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William Stephen Gefvert Do NPPES

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

DR. WILLIAM STEPHEN GEFVERT DO (NPI 1629284344) is an individual internal medicine provider in Saco, Maine, licensed in Maine (1058) and active in the NPI registry since May 2007.

NPPES Registry Identity

NPI1629284344
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM STEPHEN GEFVERTCredential: DO
Location Address655 MAIN STSaco, ME 04072-1543
Mailing AddressPo Box 284Brattleboro, VT 05302-0284 · (207) 784-2554 · Fax (207) 777-5363
Fax(207) 602-3573
Sole ProprietorNo
Enumeration DateMay 16, 2007
Last NPPES UpdateFebruary 5, 2013
NPI 1629284344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in ME · 1058
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.
655 MAIN ST, Saco, ME 04072

Other Identifiers 3

Medicare PIN01547701ME
Medicaid129590099ME
Medicaid12959009ME

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.

Nurse Practitioner (Family)
655 MAIN ST
SACO, ME 04072
Nurse Practitioner (Adult Health)
655 MAIN ST
SACO, ME 04072
Pediatrics
655 MAIN ST
SACO, ME 04072
Neuromusculoskeletal Medicine & OMM
655 MAIN ST
SACO, ME 04072
General Practice
655 MAIN ST, VA CLINIC
SACO, ME 04072
Internal Medicine
655 MAIN ST
SACO, ME 04072
Clinic/Center (Urgent Care)
655 MAIN ST
SACO, ME 04072
Neuromusculoskeletal Medicine & OMM
655 MAIN ST
SACO, ME 04072

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 William Gefvert's NPI number?

The NPI number for William Gefvert is 1629284344. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Where is William Gefvert located?

William Gefvert practices at 655 Main St, Saco, ME 04072. The listed phone number is (207) 602-3571.

What is William Gefvert'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 William Gefvert was last updated on February 5, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.