Marc Isaac Blatt, MD MBA
Emergency Medicine Physician · Boston, MA
Marc Isaac Blatt, MD MBA is an emergency medicine physician with a practice address in Boston, Massachusetts, and NPI 1689255994, issued on Apr 19, 2021. Check the license (Massachusetts 1021450, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marc Isaac Blatt
- Credential
- MD MBA
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 1021450 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Deaconess RD, Boston, MA 02215
- Phone
- (617) 754-2400
- Enumerated
- Apr 19, 2021
- Record last updated
- Apr 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20250804002673); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 1 Deaconess RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bree Alyeska, M.D.Emergency Medicine Physician1437597127
- Amanda Anastasi, M.D.Anesthesiology Physician1801820550
- Philip Anderson, M.D.Emergency Medicine Physician1477540235
Verify Marc Isaac Blatt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1021450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average emergency medicine physician in 2024
51 Medicare Part D claims for 41 beneficiaries, against an average of 226 among the 54,106 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.
Bills Medicare through 3 group practices
- Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISNew Bedford, MA
- Bid-Milton Physician Associates IncMilton, MA
- 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).
Marc Isaac Blatt among 1,829 emergency medicine physician records in Massachusetts
Marc Isaac Blatt, MD MBA is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2011 among the 1,200 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
543 emergency medicine physician records list a practice address in Boston
They are 543 of the 41,865 NPPES records with a practice address in Boston, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Boston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Philip Anderson, M.D.Boston, MA 022151477540235
- Susan Bartels, MDBoston, MA 022151801852561
- Wende Buras, M.D.Boston, MA 022151376500587
- Jonathan Burstein, M.D.Boston, MA 022151740227461
- Jonathan Edlow, M.D.Boston, MA 022151962449165
- Jonathan Fisher, M.D.Boston, MA 022151437199973
- Michael Ganetsky, M.D.Boston, MA 022151053394288
- Sean Kelly, M.D.Boston, MA 022151265479927
Common questions
What is Marc Isaac Blatt, MD MBA's NPI number?
Marc Isaac Blatt, MD MBA's National Provider Identifier (NPI) is 1689255994, issued on Apr 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Marc Isaac Blatt, MD MBA located?
The NPPES record lists a practice address at 1 Deaconess RD, Boston, MA, 02215. Phone: (617) 754-2400. Providers update this record themselves, so call before visiting.
How can I verify Marc Isaac Blatt, MD MBA's license?
NPPES lists Massachusetts license number 1021450, 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 Marc Isaac Blatt, MD MBA prescribe under Medicare Part D?
In 2024, Marc Isaac Blatt, MD MBA had 51 Medicare Part D claims for 41 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.