Mark David Dexter, M.D.
Pediatric Critical Care Medicine Physician · Boston, MA
Mark David Dexter, M.D. is a pediatric critical care medicine physician with a practice address in Boston, Massachusetts, and NPI 1033408513, issued on Apr 5, 2011. Check the license (Massachusetts 281842, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark David Dexter
- Credential
- M.D.
- Primary taxonomy
- Pediatric Critical Care Medicine Physician 2080P0203X
- License number
- 281842 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Apr 5, 2011
- Record last updated
- Apr 5, 2023
- Medicaid ID
- 110158942A MA
- Medicare enrollment
- Enrolled (PECOS I20200115003026); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2011
- Entity
- Type 1 · individual
8 nearest pediatric critical care medicine physician records → All 121 in Massachusetts → Look up another NPI →
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Abadir, MDPediatric Cardiology Physician1427366459
- Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
- Kristin Abdelnour, PTPhysical Therapist1982821302
- Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
- Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
- Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233
Verify Mark David Dexter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 281842Check 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
- Children's Hospital Pediatric Associates, IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark David Dexter among 121 pediatric critical care medicine physician records in Massachusetts
Mark David Dexter, M.D. is one of 121 pediatric critical care medicine physician records with a practice address in Massachusetts. 43% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 51% of them.
- NPI issued2011 · 51% of these records are older, 43% newer
- In a Medicare fileYes · 43% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2011 · median 2010 among the 55 with a school on file
- Record last updated2023 · 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 2080P0203X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Critical Care Medicine Physician providers in Massachusetts
There are 121 pediatric critical care medicine physician records in Massachusetts.
All 121 in Massachusetts → Every provider in Boston → Pediatric Critical Care Medicine Physician nationwide →
The 8 pediatric critical care medicine physician records with the nearest ZIP codes
- Michael Agus, MDBoston, MA 021151952382301
- Jeffrey Burns, MDBoston, MA 021151821065327
- Robert Graham, MDBoston, MA 021151699743682
- John Kheir, M.D.Boston, MA 021151659355279
- Peter Laussen, MDBoston, MA 021151073584967
- Benjamin Matthews, MDBoston, MA 021151851382436
- Robert Pascucci, MDBoston, MA 021151194793752
- Gregory Priebe, MDBoston, MA 021151285695387
Common questions
What is Mark David Dexter, M.D.'s NPI number?
Mark David Dexter, M.D.'s National Provider Identifier (NPI) is 1033408513, issued on Apr 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mark David Dexter, M.D. located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify Mark David Dexter, M.D.'s license?
NPPES lists Massachusetts license number 281842, 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.