Sean O'Brien
Medical Physician Assistant · Williamsport, PA
Sean O'Brien is a medical physician assistant with a practice address in Williamsport, Pennsylvania, and NPI 1205379310, issued on Nov 21, 2016. Check the license (Pennsylvania OA004007, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean O'Brien
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- OA004007 PA
Self-reported in NPPES; status is on the state search - Practice location
- 740 High St, Williamsport, PA 17701
- Phone
- (570) 321-3160
- Enumerated
- Nov 21, 2016
- Record last updated
- Jun 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170420002005); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,897 in Pennsylvania → Look up another NPI →
Also registered at 740 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Wayne Butler, PA-CPhysician Assistant1205801107
- Leonard Collins, M.D.Obstetrics & Gynecology Physician1962499301
- Scott CrollSurgery Physician1356318497
Verify Sean O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OA004007Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average medical physician assistant in 2024
79 Medicare Part D claims for 16 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Tartrate15 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.
The MIPS final score for 2023 (Medicare payment program): 90.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $154.06
7 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 16,165 providers of this specialty with any payment received $1,055.00 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
- Commonwealth Physician Network LLCNanticoke, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean O'Brien among 3,897 medical physician assistant records in Pennsylvania
Sean O'Brien is one of 3,897 medical physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 59% of them.
- NPI issued2016 · 59% of these records are older, 36% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2015 among the 2,467 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 medical physician assistant records list a practice address in Williamsport
They are 16 of the 1,371 NPPES records with a practice address in Williamsport, and 3,897 medical physician assistant records in Pennsylvania.
All 3,897 in Pennsylvania → Every provider in Williamsport → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Joshua Bower, PA-CWilliamsport, PA 177011609112689
- Megan ColvinWilliamsport, PA 177011326457623
- Kirsten Eldred, PA-CWilliamsport, PA 177011588650857
- Debra Gramley, PA-CWilliamsport, PA 177011932353802
- Christine Kessler, PA-CWilliamsport, PA 177011376096784
- Ashley Knight, PA-CWilliamsport, PA 177011396134532
- Robin KrikorianWilliamsport, PA 177011992006712
- Robert Mayshock, PA-CWilliamsport, PA 177011295005429
Common questions
What is Sean O'Brien's NPI number?
Sean O'Brien's National Provider Identifier (NPI) is 1205379310, issued on Nov 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Sean O'Brien located?
The NPPES record lists a practice address at 740 High St, Williamsport, PA, 17701. Phone: (570) 321-3160. Providers update this record themselves, so call before visiting.
How can I verify Sean O'Brien's license?
NPPES lists Pennsylvania license number OA004007, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Sean O'Brien prescribe under Medicare Part D?
In 2024, Sean O'Brien had 79 Medicare Part D claims for 16 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Sean O'Brien's MIPS final score?
The 2023 MIPS final score is 90.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.