Sharon E. O'Brien, MD
Pediatric Cardiology Physician · Boston, MA
Sharon E. O'Brien, MD is a pediatric cardiology physician with a practice address in Boston, Massachusetts, and NPI 1427046598, issued on Oct 12, 2005. Check the license (Massachusetts 156607, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sharon E. O'Brien
- Credential
- MD
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- 156607 MA
Self-reported in NPPES; status is on the state search - Practice location
- 850 Harrison Ave, Boston, MA 02118
- Phone
- (617) 414-4841
- Enumerated
- Oct 12, 2005
- Record last updated
- Jul 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (617) 414-4547
- Medicaid ID
- 110059717A MA
- Medicare enrollment
- Enrolled (PECOS I20110825000613); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 129 in Massachusetts → Look up another NPI →
Also registered at 850 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jodi Abbott, MDMaternal & Fetal Medicine Physician1346222692
- Mayssa Aboody, CNMAdvanced Practice Midwife1780455998
- Zinah Abukhalil-Quinonez, LICSWClinical Social Worker1376662627
- Kirsten AdamsObstetrics & Gynecology Physician1477203446
- William Adams, MDPediatrics Physician1255314696
- Soukaina Adolphe, M.D.Pediatrics Physician1760579155
Verify Sharon E. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 156607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Child Health Foundation OF Boston IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sharon E. O'Brien among 129 pediatric cardiology physician records in Massachusetts
Sharon E. O'Brien, MD is one of 129 pediatric cardiology physician records with a practice address in Massachusetts. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1992 · median 2007 among the 71 with a school on file
- Record last updated2014 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Massachusetts
There are 129 pediatric cardiology physician records in Massachusetts.
All 129 in Massachusetts → Every provider in Boston → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Meena Bolourchi, M.D.Boston, MA 021181326484809
- Sepehr Sekhavat, MDBoston, MA 021181639150626
- Elizabeth Sheeran, MDBoston, MA 021181720069719
- Nikhil Thatte, M.D.Boston, MA 021181982011862
- Elizabeth Yellen, M.D.Boston, MA 021181588610133
- McAllister WindomBoston, MA 021191003172321
- Michelle Degen, MDBoston, MA 021151871090605
- Daniel Diaz-Gil, MDBoston, MA 021151225787187
Common questions
What is Sharon E. O'Brien, MD's NPI number?
Sharon E. O'Brien, MD's National Provider Identifier (NPI) is 1427046598, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sharon E. O'Brien, MD located?
The NPPES record lists a practice address at 850 Harrison Ave, Boston, MA, 02118. Phone: (617) 414-4841. Providers update this record themselves, so call before visiting.
How can I verify Sharon E. O'Brien, MD's license?
NPPES lists Massachusetts license number 156607, 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.
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.