Bonnie Alice Ewald, M.D.
Gastroenterology Physician · Burlington, MA
Bonnie Alice Ewald, M.D. is a gastroenterology physician with a practice address in Burlington, Massachusetts, and NPI 1346535440, issued on Jun 16, 2011. Check the license (Massachusetts 260933, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Bonnie Alice Ewald
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 260933 MA
247792 MA
Self-reported in NPPES; status is on the state search - Practice location
- Lahey Hospital And Medical Center, Burlington, MA 01805
- Phone
- (781) 744-8494
- Enumerated
- Jun 16, 2011
- Record last updated
- Jul 31, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (781) 744-5276
- Medicare enrollment
- Enrolled (PECOS I20160603000481); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at Lahey Hospital And Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andaleeb Ahmed, M.B.B.S, M.P.HAnesthesiology Physician1598950321
- Marina Anastopoulos, MS, PA-CPhysician Assistant1710461884
- Marc Baker-Bourgeois, RN, CRNACertified Registered Nurse Anesthetist1154850402
- Ashley Brisebois, CNP, RNAdult Health Nurse Practitioner1851846687
- Megan Brown, D.O.Hospitalist Physician1033320536
- Sunil Buddaraju, M.D.Internal Medicine Physician1194088161
Verify Bonnie Alice Ewald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 260933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average gastroenterology physician in 2024
416 Medicare Part D claims for 111 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Omeprazole100 claims
- Famotidine58 claims
- Ursodiol33 claims
- Pantoprazole Sodium31 claims
- Xifaxan29 claims
- Vemlidy23 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.
Bills Medicare through one group practice
- Lahey Clinic IncBurlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
31 gastroenterology physician records list a practice address in Burlington
They are 31 of the 2,620 NPPES records with a practice address in Burlington, and 686 gastroenterology physician records in Massachusetts.
All 31 in Burlington → All 686 in Massachusetts → Every provider in Burlington →
Other gastroenterology physician records in Massachusetts
- Robert Aaron, MDStoneham, MA1962694323
- Michael Aaronson, MDBeverly, MA1366547739
- Diane Abraczinskas, MDBoston, MA1811988488
- Nitin Aggarwal, M.D.North Chelmsford, MA1407145402
- Jaya Agrawal, M.D.Florence, MA1316979842
- Heidi Ahmed, M.D.North Chelmsford, MA1801276472
- Lynne Ahn, MDFramingham, MA1144269143
- Hiroyuki Aihara, M.D.Boston, MA1619395795
- Mona AkbariSouth Weymouth, MA1871720037
- Geetanjali Akerkar, M.D.Chelmsford, MA1144289166
Common questions
What is Bonnie Alice Ewald, M.D.'s NPI number?
Bonnie Alice Ewald, M.D.'s National Provider Identifier (NPI) is 1346535440, issued on Jun 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie Alice Ewald, M.D. located?
The NPPES record lists a practice address at Lahey Hospital And Medical Center, Burlington, MA, 01805. Phone: (781) 744-8494. Providers update this record themselves, so call before visiting.
How can I verify Bonnie Alice Ewald, M.D.'s license?
NPPES lists Massachusetts license number 260933, 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 Bonnie Alice Ewald, M.D. prescribe under Medicare Part D?
In 2024, Bonnie Alice Ewald, M.D. had 416 Medicare Part D claims for 111 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.