Sean O'Connor, D.M.D.
Dentist · Baltimore, MD
Sean O'Connor, D.M.D. is a dentist with a practice address in Baltimore, Maryland, and NPI 1912387333, issued on Jun 1, 2015. Check the license (Maryland 15817, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean O'Connor
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- 15817 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1111 N Charles St, Baltimore, MD 21201
- Phone
- (410) 837-2050
- Enumerated
- Jun 1, 2015
- Record last updated
- Jun 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,870 in Maryland → Look up another NPI →
Also registered at 1111 N Charles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Temitayo Adewuyi, BDS, MPHDentist1225495724
- Safa Ahteshamuddin, DDSStudent in an Organized Health Care Education/Training Program1902733058
- Danielle Aiken, DDSGeneral Practice Dentistry1558971325
- Nicole Albrecht, PSYDPsychologist1124485487
Verify Sean O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 15817Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average dentist in 2024
38 Medicare Part D claims for 24 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
Sean O'Connor among 1,870 dentist records in Maryland
Sean O'Connor, D.M.D. is one of 1,870 dentist records with a practice address in Maryland. 60% 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 67% of them.
- NPI issued2015 · 67% of these records are older, 29% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2015 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Maryland
There are 1,870 dentist records in Maryland.
All 1,870 in Maryland → Every provider in Baltimore → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Roosevelt Bush, DDS MPHBaltimore, MD 212011447302096
- Suman ChibbBaltimore, MD 212011316134620
- Harold Goodman, DMDBaltimore, MD 212011093779050
- Ina Griffin, DMDBaltimore, MD 212011609941178
- Walter Inge, DDSBaltimore, MD 212011720040496
- Deborah Miller Young, DDSBaltimore, MD 212011629002993
- Se-Lim Oh, D.M.D.Baltimore, MD 212011902024789
- Gilbert Palmieri, DDSBaltimore, MD 212011528198918
Common questions
What is Sean O'Connor, D.M.D.'s NPI number?
Sean O'Connor, D.M.D.'s National Provider Identifier (NPI) is 1912387333, issued on Jun 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Sean O'Connor, D.M.D. located?
The NPPES record lists a practice address at 1111 N Charles St, Baltimore, MD, 21201. Phone: (410) 837-2050. Providers update this record themselves, so call before visiting.
How can I verify Sean O'Connor, D.M.D.'s license?
NPPES lists Maryland license number 15817, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Sean O'Connor, D.M.D. prescribe under Medicare Part D?
In 2024, Sean O'Connor, D.M.D. had 38 Medicare Part D claims for 24 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.