William Seibert, DO
Family Medicine Physician · Littlestown, PA
William Seibert, DO is a family medicine physician with a practice address in Littlestown, Pennsylvania, and NPI 1588620272, issued on Apr 22, 2006. Check the license (Pennsylvania OS004409L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Seibert
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS004409L PA
Self-reported in NPPES; status is on the state search - Practice location
- 340 Lumber St, Littlestown, PA 17340
- Phone
- (717) 359-1331
- Enumerated
- Apr 22, 2006
- Entity
- Type 1 · individual
Also registered at 340 Lumber St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Todd Goldberg, DPMFoot Surgery Podiatrist1578546933
Verify William Seibert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS004409LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
5 family medicine physician records list a Littlestown practice address
They are 5 of the 47 NPPES records with a Littlestown practice address, and 7,324 family medicine physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5 in Littlestown → All 7,324 in Pennsylvania → Every provider in Littlestown →
Other family medicine physician records in Pennsylvania
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- Jasim Abbasi, DOErie, PA1396537452
- Alyssa Abbott, CRNPHermitage, PA1669074456
- Daived Abboud, M.D.Allentown, PA1295189322
- Ihab Abdelaal, D.O.Macungie, PA1588944938
- Adam Abdulally, MDPittsburgh, PA1184861544
- Maimuna AbdullahiLebanon, PA1477344018
- Dulitha Abeynayaka, MDPottsville, PA1326983404
Common questions
What is William Seibert, DO's NPI number?
William Seibert, DO's National Provider Identifier (NPI) is 1588620272, issued on Apr 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Seibert, DO located?
The NPPES record lists a practice address at 340 Lumber St, Littlestown, PA, 17340. Phone: (717) 359-1331. Providers update this record themselves, so call before visiting.
How can I verify William Seibert, DO's license?
NPPES lists Pennsylvania license number OS004409L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.