Maria Lonshteyn
Gastroenterology Physician · Beverly, MA
Maria Lonshteyn is a gastroenterology physician with a practice address in Beverly, Massachusetts, and NPI 1720247653, issued on Jun 5, 2008. Check the license (Massachusetts 248245, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Maria Lonshteyn
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 248245 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Cummings Ctr Ste 107C, Beverly, MA 01915
- Phone
- (978) 232-1120
- Enumerated
- Jun 5, 2008
- Record last updated
- Aug 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (978) 232-0110
- Medicare enrollment
- Enrolled (PECOS I20110808000787); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 100 Cummings Ctr Ste 107C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosa Bui, M.D.Gastroenterology Physician1336535962
Verify Maria Lonshteyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 248245Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average gastroenterology physician in 2024
802 Medicare Part D claims for 195 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Omeprazole167 claims
- Pantoprazole Sodium63 claims
- Sucralfate51 claims
- Linzess46 claims
- Dicyclomine Hcl43 claims
- Famotidine35 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Beth Israel Lahey Health Specialty Care, Inc.Beverly, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Lonshteyn among 686 gastroenterology physician records in Massachusetts
Maria Lonshteyn 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 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2008 · median 2004 among the 491 with a school on file
- Record last updated2021 · 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 Beverly → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Aaronson, MDBeverly, MA 019151366547739
- Rosa Bui, M.D.Beverly, MA 019151336535962
- Michael Demarkles, MDBeverly, MA 019151376578534
- Richard Einhorn, MDBeverly, MA 019151639104896
- Martin Hahn, M.D.Beverly, MA 019151770698730
- Seth Homer, M.D.Beverly, MA 019151598993735
- Lawrence Murphy, M.D.Beverly, MA 019151902126238
- Michael Newman, M.D.Beverly, MA 019151487704276
Common questions
What is Maria Lonshteyn's NPI number?
Maria Lonshteyn's National Provider Identifier (NPI) is 1720247653, issued on Jun 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Maria Lonshteyn located?
The NPPES record lists a practice address at 100 Cummings Ctr Ste 107C, Beverly, MA, 01915. Phone: (978) 232-1120. Providers update this record themselves, so call before visiting.
How can I verify Maria Lonshteyn's license?
NPPES lists Massachusetts license number 248245, 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 Maria Lonshteyn prescribe under Medicare Part D?
In 2024, Maria Lonshteyn had 802 Medicare Part D claims for 195 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Maria Lonshteyn's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.