Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William Stephen Gefvert, DO

Individual provider Internal Medicine Physician · NPI 1629284344

Dr. William Stephen Gefvert, DO is an Internal Medicine Physician in Saco, Maine. Licensed in Maine. Registered with an NPI since 2007.

Licensed in
ME
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

655 Main St
Saco, ME 04072-1543
Phone: (207) 602-3571
Fax: (207) 602-3573
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 1058 (ME)

Record details

NPI number1629284344
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 16, 2007
Last updated in NPPESFebruary 5, 2013
Mailing addressPo Box 284, Brattleboro, VT 05302-0284

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