Sean J. O'Neill, PA-C
Physician Assistant · Kalamazoo, MI
Sean J. O'Neill, PA-C is a physician assistant with a practice address in Kalamazoo, Michigan, and NPI 1154342889, issued on Jul 21, 2006. Check the license (Michigan 5601001721, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean J. O'Neill
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601001721 MI
Self-reported in NPPES; status is on the state search - Practice location
- 601 John St, Kalamazoo, MI 49007
- Phone
- (269) 373-1592
- Enumerated
- Jul 21, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (269) 373-6270
- Medicaid ID
- 1154342889 MI
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 601 John St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sean J. O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601001721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average physician assistant in 2024
15 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
Sean J. O'Neill among 6,989 physician assistant records in Michigan
Sean J. O'Neill, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 83% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2023 · 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).
173 physician assistant records list a practice address in Kalamazoo
They are 173 of the 6,553 NPPES records with a practice address in Kalamazoo, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Kalamazoo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- William Blakeslee, WILLIAM BLAKESLEE PAKalamazoo, MI 490071306039490
- Karen Brown, PACKalamazoo, MI 490071790890655
- Courtney Converse, PA-CKalamazoo, MI 490071699743872
- Autumn Hopkins, PA-CKalamazoo, MI 490071962445080
- Jennifer Hurtt, PAKalamazoo, MI 490071447445002
- Pamela Leveston-Hamilton, PA-CKalamazoo, MI 490071427107077
- Paula Lockwood, PAKalamazoo, MI 490071164623260
- Yvette Lozano, PHYSICIAN ASSISTANTKalamazoo, MI 490071780780007
Common questions
What is Sean J. O'Neill, PA-C's NPI number?
Sean J. O'Neill, PA-C's National Provider Identifier (NPI) is 1154342889, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean J. O'Neill, PA-C located?
The NPPES record lists a practice address at 601 John St, Kalamazoo, MI, 49007. Phone: (269) 373-1592. Providers update this record themselves, so call before visiting.
How can I verify Sean J. O'Neill, PA-C's license?
NPPES lists Michigan license number 5601001721, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Sean J. O'Neill, PA-C prescribe under Medicare Part D?
In 2024, Sean J. O'Neill, PA-C had 15 Medicare Part D claims; 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.