Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM LLOYD SPRAGUE MD
NPI 1194729558
Family Medicine in Allentown, PA

Q: What is William Sprague's NPI number?

The NPI number for William Sprague is 1194729558. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Q: What is William Sprague's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for William Sprague was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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 June 13, 2005

1597 LEHIGH STREET, ALLENTOWN, PA 18103(610) 791-3801(610) 791-4851 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William Lloyd Sprague Md NPPES

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

WILLIAM LLOYD SPRAGUE MD (NPI 1194729558) is an individual family medicine provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD051955L) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1194729558

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM LLOYD SPRAGUECredential: MD

Location Address1597 LEHIGH STREETAllentown, PA 18103-3813

Mailing Address42 South Best Ave. Po Box GWalnutport, PA 18088 · (610) 760-1520 · Fax (610) 760-1721

Phone(610) 791-3801

Fax(610) 791-4851

Sole ProprietorNo

Enumeration DateJune 13, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1194729558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in PA · MD051955L

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

1597 LEHIGH STREET, Allentown, PA 18103

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Other Identifiers 1

Medicaid1011785340001PA

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 Sprague's NPI number?

The NPI number for William Sprague is 1194729558. It was assigned to this individual provider in the NPPES registry on June 13, 2005.

Where is William Sprague located?

William Sprague practices at 1597 Lehigh Street, Allentown, PA 18103. The listed phone number is (610) 791-3801.

What is William Sprague's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for William Sprague was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.