Patrick Francis O'Neil, M.D.
Family Medicine Physician · Brunswick, MD
Patrick Francis O'Neil, M.D. is a family medicine physician with a practice address in Brunswick, Maryland, and NPI 1033400379, issued on Apr 20, 2011. Check the license (Maryland D86578, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Patrick Francis O'Neil
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- D86578 MD
27142 NE
28880 WV
Self-reported in NPPES; status is on the state search - Practice location
- 610 9TH Ave, Brunswick, MD 21716
- Phone
- (301) 834-7188
- Enumerated
- Apr 20, 2011
- Record last updated
- Jan 12, 2022
- Medicare enrollment
- Enrolled (PECOS I20190731002312); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 610 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wayne Allgaier, M.D.Family Medicine Physician1174507636
- Shannon Beheler, PA-CMedical Physician Assistant1609002534
- Sandhya Devaraj, MDFamily Medicine Physician1659937506
- James Fleming, M.D.Family Medicine Physician1447234893
- Caroline Gessert, M.D.Family Medicine Physician1710960323
- Chan-Hing Ho, M.D.Family Medicine Physician1295716223
Verify Patrick Francis O'Neil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D86578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average family medicine physician in 2024
2,907 Medicare Part D claims for 278 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 80 claims were for opioids.
Most prescribed
- Atorvastatin Calcium177 claims
- Rosuvastatin Calcium177 claims
- Amlodipine Besylate161 claims
- Lisinopril105 claims
- Metformin Hcl103 claims
- Gabapentin80 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: $920.78
52 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Privia Care Center LLCFrederick, MD
- Privia Medical Group, LLCAnnapolis, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick Francis O'Neil among 1,912 family medicine physician records in Maryland
Patrick Francis O'Neil, M.D. is one of 1,912 family medicine physician 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 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · median 2004 among the 1,141 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family medicine physician records list a practice address in Brunswick
They are 10 of the 65 NPPES records with a practice address in Brunswick, and 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Brunswick → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Wayne Allgaier, M.D.Brunswick, MD 217161174507636
- Sandhya Devaraj, MDBrunswick, MD 217161659937506
- James Fleming, M.D.Brunswick, MD 217161447234893
- Caroline Gessert, M.D.Brunswick, MD 217161710960323
- Chan-Hing Ho, M.D.Brunswick, MD 217161295716223
- Leonard Kinland, M.D.Brunswick, MD 217161760465470
- Kathleen Stern, M.D.Brunswick, MD 217161013990720
- Sheila Tetreault, DOBrunswick, MD 217161265535710
Common questions
What is Patrick Francis O'Neil, M.D.'s NPI number?
Patrick Francis O'Neil, M.D.'s National Provider Identifier (NPI) is 1033400379, issued on Apr 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Francis O'Neil, M.D. located?
The NPPES record lists a practice address at 610 9TH Ave, Brunswick, MD, 21716. Phone: (301) 834-7188. Providers update this record themselves, so call before visiting.
How can I verify Patrick Francis O'Neil, M.D.'s license?
NPPES lists Maryland license number D86578, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Patrick Francis O'Neil, M.D. prescribe under Medicare Part D?
In 2024, Patrick Francis O'Neil, M.D. had 2,907 Medicare Part D claims for 278 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.