Andrew Seymour Oseran, MD MBA MSC
Cardiovascular Disease Physician · Boston, MA
Andrew Seymour Oseran, MD MBA MSC is a cardiovascular disease physician with a practice address in Boston, Massachusetts, and NPI 1457702342, issued on Jun 22, 2016. Check the license (Massachusetts 267153, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Andrew Seymour Oseran
- Credential
- MD MBA MSC
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 267153 MA
Self-reported in NPPES; status is on the state search - Practice location
- Massachusetts General Hospital, Boston, MA 02114
- Phone
- (617) 643-0596
- Enumerated
- Jun 22, 2016
- Record last updated
- Aug 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20240614001019); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,080 in Massachusetts → Look up another NPI →
Also registered at Massachusetts General Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andrew Seymour Oseran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 267153Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
103 Medicare Part D claims for 36 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Metoprolol Succinate16 claims
- Spironolactone14 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
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Seymour Oseran among 1,080 cardiovascular disease physician records in Massachusetts
Andrew Seymour Oseran, MD MBA MSC is one of 1,080 cardiovascular disease physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 85% of them.
- NPI issued2016 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2016 · median 2001 among the 698 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
476 cardiovascular disease physician records list a practice address in Boston
They are 476 of the 41,865 NPPES records with a practice address in Boston, and 1,080 cardiovascular disease physician records in Massachusetts.
All 1,080 in Massachusetts → Every provider in Boston → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Anjum Butte, MDBoston, MA 021141104807379
- William Carlson, MD PHDBoston, MA 021141669462180
- Michael Fifer, MDBoston, MA 021141730170630
- Edwin Heist, MD PHDBoston, MA 021141255313334
- Judy Hung, MDBoston, MA 021141003898461
- Calum Macrae, MDBoston, MA 021141467442665
- James McFarland, MDBoston, MA 021141497745798
- Theofanie Mela, MDBoston, MA 021141366423832
Common questions
What is Andrew Seymour Oseran, MD MBA MSC's NPI number?
Andrew Seymour Oseran, MD MBA MSC's National Provider Identifier (NPI) is 1457702342, issued on Jun 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Seymour Oseran, MD MBA MSC located?
The NPPES record lists a practice address at Massachusetts General Hospital, Boston, MA, 02114. Phone: (617) 643-0596. Providers update this record themselves, so call before visiting.
How can I verify Andrew Seymour Oseran, MD MBA MSC's license?
NPPES lists Massachusetts license number 267153, 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 Andrew Seymour Oseran, MD MBA MSC prescribe under Medicare Part D?
In 2024, Andrew Seymour Oseran, MD MBA MSC had 103 Medicare Part D claims for 36 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.