William Seibt, PA-C
Physician Assistant · Salem, OR
William Seibt, PA-C is a physician assistant with a practice address in Salem, Oregon, and NPI 1225401920, issued on Nov 4, 2015. Check the license (Oregon PA185147, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Seibt
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA185147 OR
PA9109254 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Capitol St NE, Salem, OR 97301
- Phone
- (503) 399-2424
- Enumerated
- Nov 4, 2015
- Record last updated
- Nov 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (503) 375-7429
- Medicare enrollment
- Enrolled (PECOS I20171211002954); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,094 in Oregon → Look up another NPI →
Also registered at 2020 Capitol St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aimee Alejandre, PA-CMedical Physician Assistant1790454056
- Gloria Alexander, M.D.Internal Medicine Physician1326259524
- Rachel BaileyHealth Educator1831686583
- Erik Bates, PAMedical Physician Assistant1689786832
- Richard Beach, MDHospitalist Physician1558858092
Verify William Seibt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA185147Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average physician assistant in 2024
795 Medicare Part D claims for 590 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 78 claims were for opioids.
Most prescribed
- Doxycycline Monohydrate89 claims
- Azithromycin85 claims
- Prednisone82 claims
- Oxycodone-Acetaminophen52 claims
- Ciprofloxacin Hcl41 claims
- Cephalexin38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Salem Clinic PCSalem, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Seibt among 2,094 physician assistant records in Oregon
William Seibt, PA-C is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 44% of them.
- NPI issued2015 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2015 · median 2017 among the 1,552 with a school on file
- Record last updated2018 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
128 physician assistant records list a practice address in Salem
They are 128 of the 6,700 NPPES records with a practice address in Salem, and 2,094 physician assistant records in Oregon.
All 2,094 in Oregon → Every provider in Salem → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Julie AllstotSalem, OR 973011851522858
- Sadie Blackhall, PA-CSalem, OR 973011922376656
- Randy Cote, PA-CSalem, OR 973011285898320
- Kristen GehringSalem, OR 973011639294671
- Teresa George, PASalem, OR 973011942475918
- Eric Harmon, PASalem, OR 973011972778934
- Angila Johnson, P.A.Salem, OR 973011649473349
- Michelle Lewis, PA-CSalem, OR 973011376843417
Common questions
What is William Seibt, PA-C's NPI number?
William Seibt, PA-C's National Provider Identifier (NPI) is 1225401920, issued on Nov 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Seibt, PA-C located?
The NPPES record lists a practice address at 2020 Capitol St NE, Salem, OR, 97301. Phone: (503) 399-2424. Providers update this record themselves, so call before visiting.
How can I verify William Seibt, PA-C's license?
NPPES lists Oregon license number PA185147, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does William Seibt, PA-C prescribe under Medicare Part D?
In 2024, William Seibt, PA-C had 795 Medicare Part D claims for 590 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.