Olivia Williamson, PA-C
Physician Assistant · Sebewaing, MI
Olivia Williamson, PA-C is a physician assistant with a practice address in Sebewaing, Michigan, and NPI 1477338184, issued on Aug 30, 2023. Check the license with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Williamson
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 106 E Main St, Sebewaing, MI 48759
- Phone
- (989) 883-3800
- Enumerated
- Aug 30, 2023
- Record last updated
- Sep 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20231018001743); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 106 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Olivia Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average physician assistant in 2024
184 Medicare Part D claims for 141 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Cephalexin36 claims
- Hydrocodone-Acetaminophen31 claims
- Prednisone14 claims
- Ondansetron Odt13 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.
Industry payments in 2024: $843.54
30 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Brent M Boyce MD PCSebewaing, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia Williamson among 6,989 physician assistant records in Michigan
Olivia Williamson, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 14% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2023 · median 2017 among the 4,739 with a school on file
- Record last updated2024 · 40% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 physician assistant record lists a practice address in Sebewaing
They are 1 of the 25 NPPES records with a practice address in Sebewaing, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Sebewaing → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Annie Bailey, PA-CTawas City, MI 487631306583547
- Dwight Fiske, PA-C, RN, AEMTTawas City, MI 487631669499133
- Jerry Hall, P.A.-CPigeon, MI 487551295761369
- Judy Herbolsheimer, PA-CTawas City, MI 487631861480600
- Kevin Kaliszewski, PA-CTawas City, MI 487631760470488
- Richard Meshew, PATawas City, MI 487631326056532
- Molly Minard, PA-CTawas City, MI 487631801887377
- Mackenzie Paulson, PA-CPigeon, MI 487551154690014
Common questions
What is Olivia Williamson, PA-C's NPI number?
Olivia Williamson, PA-C's National Provider Identifier (NPI) is 1477338184, issued on Aug 30, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Williamson, PA-C located?
The NPPES record lists a practice address at 106 E Main St, Sebewaing, MI, 48759. Phone: (989) 883-3800. Providers update this record themselves, so call before visiting.
How can I verify Olivia Williamson, PA-C's license?
Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia Williamson, PA-C prescribe under Medicare Part D?
In 2024, Olivia Williamson, PA-C had 184 Medicare Part D claims for 141 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.