Cierra O'Neill, PA-C
Medical Physician Assistant · Baltimore, MD
Cierra O'Neill, PA-C is a medical physician assistant with a practice address in Baltimore, Maryland, and NPI 1679257364, issued on Jun 13, 2023. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cierra O'Neill
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 3333 N Calvert St, Baltimore, MD 21218
- Phone
- (410) 554-6550
- Enumerated
- Jun 13, 2023
- Record last updated
- Oct 29, 2024
- Medicare enrollment
- Enrolled (PECOS I20231116001963); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 871 in Maryland → Look up another NPI →
Also registered at 3333 N Calvert St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Baugher, M.D.Orthopaedic Surgery Physician1689637522
- Abhijit Bhatia, MDGastroenterology Physician1144338658
Verify Cierra O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland 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
81% fewer Medicare Part D claims than the average medical physician assistant in 2024
215 Medicare Part D claims for 46 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium44 claims
- Clopidogrel27 claims
- Atorvastatin Calcium24 claims
- Metoprolol Tartrate24 claims
- Amiodarone Hcl17 claims
- Furosemide12 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 2 group practices
- Medstar Heart Institute LLCBaltimore, MD
- Medstar Medical Group II LLCBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cierra O'Neill among 871 medical physician assistant records in Maryland
Cierra O'Neill, PA-C is one of 871 medical physician assistant records with a practice address in Maryland. 73% 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 94% of them.
- NPI issued2023 · 94% of these records are older, 5% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2023 · median 2012 among the 469 with a school on file
- Record last updated2024 · 63% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Maryland
There are 871 medical physician assistant records in Maryland.
All 871 in Maryland → Every provider in Baltimore → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Rebecca Gluck, PA-CBaltimore, MD 212181356732242
- Claudia Habib, MPH, PA-CBaltimore, MD 212181992373435
- Megan Higgins, P.A.Baltimore, MD 212181942350772
- Jennifer Lindsay, PA-CBaltimore, MD 212181184766297
- Kathleen Lyons, P.A., R.N.Baltimore, MD 212181982636502
- Beppie Mackenzie, P.A.Baltimore, MD 212181326195249
- Jigna Patel, PA-CBaltimore, MD 212181942442348
- Maxwell Weiner, PA-CBaltimore, MD 212181679149918
Common questions
What is Cierra O'Neill, PA-C's NPI number?
Cierra O'Neill, PA-C's National Provider Identifier (NPI) is 1679257364, issued on Jun 13, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Cierra O'Neill, PA-C located?
The NPPES record lists a practice address at 3333 N Calvert St, Baltimore, MD, 21218. Phone: (410) 554-6550. Providers update this record themselves, so call before visiting.
How can I verify Cierra O'Neill, PA-C's license?
Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Cierra O'Neill, PA-C prescribe under Medicare Part D?
In 2024, Cierra O'Neill, PA-C had 215 Medicare Part D claims for 46 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.