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

William Lloyd Sprague, MD

Individual provider Family Medicine Physician · NPI 1194729558

William Lloyd Sprague, MD is a Family Medicine Physician in Allentown, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2005.

Licensed in
PA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1597 Lehigh St
Allentown, PA 18103-3813
Phone: (610) 791-3801
Fax: (610) 791-4851
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD051955L (PA)

Record details

NPI number1194729558
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2005
Last updated in NPPESJuly 13, 2026
Mailing address42 South Best Ave. Po Box G, Walnutport, PA 18088

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