Ryan O'Hara
Emergency Medicine Physician · Dorchester, MA
Ryan O'Hara is an emergency medicine physician with a practice address in Dorchester, Massachusetts, and NPI 1265810782, issued on May 16, 2015. Check the license (Massachusetts 278934, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ryan O'Hara
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 278934 MA
35.133038 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Dorchester Ave, Dorchester, MA 02124
- Phone
- (617) 506-4444
- Enumerated
- May 16, 2015
- Record last updated
- Jun 2, 2022
- Medicare enrollment
- Enrolled (PECOS I20190626003638); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 2100 Dorchester Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emeka Agudile, MDInternal Medicine Physician1073139176
- Omodamola AjeInternal Medicine Physician1093207763
- Ashley Alexander, MDInternal Medicine Physician1972121879
- Marie-Ange Alexandre, MDStudent in an Organized Health Care Education/Training Program1396435087
- Marianna Athanassiou, MDStudent in an Organized Health Care Education/Training Program1992440382
- Sabrina Badloe, M.D.Internal Medicine Physician1427497155
Verify Ryan O'Hara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 278934Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average emergency medicine physician in 2024
146 Medicare Part D claims for 121 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin14 claims
- Amoxicillin-Clavulanate Potass13 claims
- Azithromycin13 claims
- Ondansetron Odt11 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 one group practice
- Brockton Hospital, Inc.Brockton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan O'Hara among 1,829 emergency medicine physician records in Massachusetts
Ryan O'Hara is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 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 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2015 · median 2011 among the 1,200 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Massachusetts
There are 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Dorchester → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Steven Bellin, MDDorchester, MA 021241972561462
- Skye Brazille, M.D.Dorchester, MA 021241518209105
- Leslie Cioffi, MDDorchester, MA 021241235197732
- Serena Jiddou, D.O.Dorchester, MA 021241396056826
- David John, M.D.Dorchester Center, MA 021241275506495
- Breckon Pav, M.D.Dorchester, MA 021241033431358
- Glen Sickorez, MDDorchester Center, MA 021241861445736
- Jennifer Skolnick, MDDorchester Center, MA 021241114975380
Common questions
What is Ryan O'Hara's NPI number?
Ryan O'Hara's National Provider Identifier (NPI) is 1265810782, issued on May 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ryan O'Hara located?
The NPPES record lists a practice address at 2100 Dorchester Ave, Dorchester, MA, 02124. Phone: (617) 506-4444. Providers update this record themselves, so call before visiting.
How can I verify Ryan O'Hara's license?
NPPES lists Massachusetts license number 278934, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan O'Hara prescribe under Medicare Part D?
In 2024, Ryan O'Hara had 146 Medicare Part D claims for 121 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.