Christopher Michael O'Brien, PA-C
Physician Assistant · Philadelphia, PA
Christopher Michael O'Brien, PA-C is a physician assistant with a practice address in Philadelphia, Pennsylvania, and NPI 1275125262, issued on Feb 10, 2021. Check the license with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Michael O'Brien
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 1601 Cherry St, Philadelphia, PA 19102
- Phone
- (215) 255-7700
- Enumerated
- Feb 10, 2021
- Record last updated
- Sep 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220706000939); accepts Medicare assignment
- Entity
- Type 1 · individual
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Also registered at 1601 Cherry St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher Michael O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania 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
51% more Medicare Part D claims than the average physician assistant in 2024
1,255 Medicare Part D claims for 833 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate215 claims
- Amoxicillin-Clavulanate Potass126 claims
- Prednisone123 claims
- Azithromycin120 claims
- Methylprednisolone70 claims
- Nitrofurantoin Mono-Macro67 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 practice group's MIPS final score for 2023 (Medicare payment program): 62.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Emerald Coast Urgent Care LLCDestin, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Michael O'Brien among 8,020 physician assistant records in Pennsylvania
Christopher Michael O'Brien, PA-C is one of 8,020 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2020 · median 2018 among the 5,313 with a school on file
- Record last updated2021 · 42% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
955 physician assistant records list a practice address in Philadelphia
They are 955 of the 42,849 NPPES records with a practice address in Philadelphia, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Philadelphia → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Grace Acosta, PAPhiladelphia, PA 191021184344756
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- Audra Bishop, PA-CPhiladelphia, PA 191021881289858
- Michael Bogucki, PAPhiladelphia, PA 191021922699024
- Christopher Esworthy, PA-CPhiladelphia, PA 191021710515085
- Juanita Gardner, PA-CPhiladelphia, PA 191021679907802
- Felicia GutierrezPhiladelphia, PA 191021003408584
- Rachael KonigsbergPhiladelphia, PA 191021356997688
Common questions
What is Christopher Michael O'Brien, PA-C's NPI number?
Christopher Michael O'Brien, PA-C's National Provider Identifier (NPI) is 1275125262, issued on Feb 10, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Michael O'Brien, PA-C located?
The NPPES record lists a practice address at 1601 Cherry St, Philadelphia, PA, 19102. Phone: (215) 255-7700. Providers update this record themselves, so call before visiting.
How can I verify Christopher Michael O'Brien, PA-C's license?
Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Michael O'Brien, PA-C prescribe under Medicare Part D?
In 2024, Christopher Michael O'Brien, PA-C had 1,255 Medicare Part D claims for 833 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Christopher Michael O'Brien, PA-C's MIPS final score?
The 2023 MIPS final score is 62.8 of 100, reported for the practice group. 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.