Daniel Hugh O'Leary, M.D.
Diagnostic Radiology Physician · Dorchester, MA
Daniel Hugh O'Leary, M.D. is a diagnostic radiology physician with a practice address in Dorchester, Massachusetts, and NPI 1841398385, issued on Sep 20, 2006. Check the license (Massachusetts 32840, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Daniel Hugh O'Leary
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 32840 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Dorchester Ave, Dorchester, MA 02124
- Phone
- (617) 506-2000
- Enumerated
- Sep 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (617) 474-3811
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,658 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.
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Verify Daniel Hugh O'Leary in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 32840Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024
19 Medicare Part D claims for 12 beneficiaries, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.
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: $15.00
1 payment: food and beverage; the largest payer was Davol Inc. The 8,048 providers of this specialty with any payment received $2,488.38 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.
Daniel Hugh O'Leary among 1,658 diagnostic radiology physician records in Massachusetts
Daniel Hugh O'Leary, M.D. is one of 1,658 diagnostic radiology physician records with a practice address in Massachusetts. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 57% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Massachusetts
There are 1,658 diagnostic radiology physician records in Massachusetts.
All 1,658 in Massachusetts → Every provider in Dorchester → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Alexander Feinstein, MDBoston, MA 021241306850367
- Merav Galper, MDDorchester Center, MA 021241881980977
- Richard Herman, MDBoston, MA 021241316907116
- Joshua Jadwin, MDBoston, MA 021241689104291
- Cyril Mazansky, M.D.Boston, MA 021241568421907
- James McLoughlin, MDDorchester, MA 021241184118192
- Robert Parlee, MDBoston, MA 021241598715195
- Alissa Saunders, MDBoston, MA 021241336363977
Common questions
What is Daniel Hugh O'Leary, M.D.'s NPI number?
Daniel Hugh O'Leary, M.D.'s National Provider Identifier (NPI) is 1841398385, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Hugh O'Leary, M.D. located?
The NPPES record lists a practice address at 2100 Dorchester Ave, Dorchester, MA, 02124. Phone: (617) 506-2000. Providers update this record themselves, so call before visiting.
How can I verify Daniel Hugh O'Leary, M.D.'s license?
NPPES lists Massachusetts license number 32840, 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 Daniel Hugh O'Leary, M.D. prescribe under Medicare Part D?
In 2024, Daniel Hugh O'Leary, M.D. had 19 Medicare Part D claims for 12 beneficiaries; the average among diagnostic radiology physician prescribers was 51. 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.