Mark S. Distefano, M.D.
Emergency Medicine Physician · Worcester, MA
Mark S. Distefano, M.D. is an emergency medicine physician with a practice address in Worcester, Massachusetts, and NPI 1831232230, issued on Feb 15, 2007. Check the license (Massachusetts 47612, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark S. Distefano
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 47612 MA
Self-reported in NPPES; status is on the state search - Practice location
- Vernon Medical Center, Worcester, MA 01604
- Phone
- (508) 756-4247
- Enumerated
- Feb 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Verify Mark S. Distefano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 47612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average emergency medicine physician in 2024
13 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Minoxidil11 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.
Mark S. Distefano among 1,829 emergency medicine physician records in Massachusetts
Mark S. Distefano, M.D. 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 51% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2007 · 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).
216 emergency medicine physician records list a practice address in Worcester
They are 216 of the 13,166 NPPES records with a practice address in Worcester, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Worcester → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jonathan Grayzel, MDWorcester, MA 016041679556534
- Jenny Temps, MDWorcester, MA 016041255525358
- Robert Brewer, M.D.Worcester, MA 016051043447758
- Thomas Evans, M.D.Worcester, MA 016051013068147
- Janine Gould, DOWorcester, MA 016051285600171
- Douglas HiggsWorcester, MA 016051194861351
- Craig Longo, M.D.Worcester, MA 016051588717524
- Jean Marcelin, M.D.Worcester, MA 016051558414490
Common questions
What is Mark S. Distefano, M.D.'s NPI number?
Mark S. Distefano, M.D.'s National Provider Identifier (NPI) is 1831232230, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Distefano, M.D. located?
The NPPES record lists a practice address at Vernon Medical Center, Worcester, MA, 01604. Phone: (508) 756-4247. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Distefano, M.D.'s license?
NPPES lists Massachusetts license number 47612, 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 Mark S. Distefano, M.D. prescribe under Medicare Part D?
In 2024, Mark S. Distefano, M.D. had 13 Medicare Part D claims; 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.