Mark L. Finklestein, M.D.
Gastroenterology Physician · Brockton, MA
Mark L. Finklestein, M.D. is a gastroenterology physician with a practice address in Brockton, Massachusetts, and NPI 1831114149, issued on Jul 13, 2006. Check the license (Massachusetts 44548, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark L. Finklestein
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 44548 MA
Self-reported in NPPES; status is on the state search - Practice location
- 189 Quincy St, Brockton, MA 02302
- Phone
- (508) 588-6700
- Enumerated
- Jul 13, 2006
- Record last updated
- Jan 25, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (508) 584-3010
- Medicaid ID
- 6166849 MA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 189 Quincy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Belkin, M.D.Gastroenterology Physician1679868541
- Andrew Brown, MDGastroenterology Physician1205320926
- Linesary CezaireFamily Nurse Practitioner1467950741
- Teresa Crosta, PAPhysician Assistant1811464415
- Madeline Guth, PA-CPhysician Assistant1851233076
- Amirah Khan, M.D.Gastroenterology Physician1265775225
Verify Mark L. Finklestein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 44548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average gastroenterology physician in 2024
72 Medicare Part D claims for 34 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Omeprazole14 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 L. Finklestein among 686 gastroenterology physician records in Massachusetts
Mark L. Finklestein, M.D. is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2010 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Brockton → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Edward Belkin, M.D.Brockton, MA 023021679868541
- Andrew Brown, MDBrockton, MA 023021205320926
- Amirah Khan, M.D.Brockton, MA 023021265775225
- Daniela Prodanovic, M.D.Brockton, MA 023021104859628
- Jerry Stern, M.D.Brockton, MA 023021467477794
- Andrew Stone, M.D.Brockton, MA 023021497795561
- Alex Teixeira, M.D.Brockton, MA 023021700819224
- Barry Finn, MDBrockton, MA 023011083680375
Common questions
What is Mark L. Finklestein, M.D.'s NPI number?
Mark L. Finklestein, M.D.'s National Provider Identifier (NPI) is 1831114149, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark L. Finklestein, M.D. located?
The NPPES record lists a practice address at 189 Quincy St, Brockton, MA, 02302. Phone: (508) 588-6700. Providers update this record themselves, so call before visiting.
How can I verify Mark L. Finklestein, M.D.'s license?
NPPES lists Massachusetts license number 44548, 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 L. Finklestein, M.D. prescribe under Medicare Part D?
In 2024, Mark L. Finklestein, M.D. had 72 Medicare Part D claims for 34 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.