Ellen Agnes O'Brien, DMD
Dentist · Plymouth Meeting, PA
Ellen Agnes O'Brien, DMD is a dentist with a practice address in Plymouth Meeting, Pennsylvania, and NPI 1114016649, issued on Oct 12, 2006. Check the license (Pennsylvania DS029991L, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Agnes O'Brien
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- DS029991L PA
Self-reported in NPPES; status is on the state search - Practice location
- 531 W Germantown Pike, Plymouth Meeting, PA 19462
- Phone
- (610) 828-4100
- Enumerated
- Oct 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 531 W Germantown Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Binnick, M.D.Procedural Dermatology Physician1821102534
- Kathryn Cunningham, PA-CMedical Physician Assistant1114953189
- Robert Koffler, DMDGeneral Practice Dentistry1629168851
- Richard Nagelberg, DDSGeneral Practice Dentistry1134219991
- Erica Perilstein, M.D.Dermatology Physician1245276518
- Susan SacksAdult Psychiatric/Mental Health Clinical Nurse Specialist1649697582
Verify Ellen Agnes 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 DS029991LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average dentist in 2024
71 Medicare Part D claims for 41 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin27 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.
Dentist providers in Pennsylvania
There are 3,339 dentist records in Pennsylvania.
All 3,339 in Pennsylvania → Every provider in Plymouth Meeting →
Other dentist records in Pennsylvania
- Jonathan Abaev, DDSPhiladelphia, PA1427724624
- Anthony Abdalla, DMDAllentown, PA1871672105
- Assem Abdel-Kader, DDSPhiladelphia, PA1235112590
- Ahmed Abdelkader, DDSPhiladelphia, PA1437212115
- Mahsa Abdolhosseini, DDSPhiladelphia, PA1104218882
- Mary Abeln, DDSEast York, PA1871085993
- Andrew Abolarin, DDSPhiladelphia, PA1700973567
- Omar Aboosi, DMDPittsburgh, PA1730243429
- Lawrence AbouseifReading, PA1508007212
- Joseph Abrams, DMDFrazer, PA1104977438
Common questions
What is Ellen Agnes O'Brien, DMD's NPI number?
Ellen Agnes O'Brien, DMD's National Provider Identifier (NPI) is 1114016649, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Agnes O'Brien, DMD located?
The NPPES record lists a practice address at 531 W Germantown Pike, Plymouth Meeting, PA, 19462. Phone: (610) 828-4100. Providers update this record themselves, so call before visiting.
How can I verify Ellen Agnes O'Brien, DMD's license?
NPPES lists Pennsylvania license number DS029991L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Agnes O'Brien, DMD prescribe under Medicare Part D?
In 2024, Ellen Agnes O'Brien, DMD had 71 Medicare Part D claims for 41 beneficiaries; the average among dentist prescribers was 86. 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.