David L. Longworth, MD
Internal Medicine Physician · Burlington, MA
David L. Longworth, MD is an internal medicine physician with a practice address in Burlington, Massachusetts, and NPI 1811092869, issued on Sep 14, 2006. Check the license (Massachusetts 52646, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- David L. Longworth
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 52646 MA
Self-reported in NPPES; status is on the state search - Practice location
- 67 S Bedford St Ste 202E, Burlington, MA 01803
- Phone
- (781) 744-7000
- Enumerated
- Sep 14, 2006
- Record last updated
- Apr 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (781) 744-5351
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 67 S Bedford St Ste 202E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stacey Anderson, NPNurse Practitioner1659685253
- Bethany Arguello, PA-CPhysician Assistant1295075992
- Marissa Baltus, MDInternal Medicine Physician1942308796
- Michael Berarducci, MDInternal Medicine Physician1447358270
- Joshua Berkowitz, M.D.Internal Medicine Physician1891802633
- Robert Brew, M.D.Internal Medicine Physician1356449409
Verify David L. Longworth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 52646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $7,794.93
3 payments; by number, the most common kind was consulting fee; the largest payer was Access Vascular Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
David L. Longworth among 6,825 internal medicine physician records in Massachusetts
David L. Longworth, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 internal medicine physician records list a practice address in Burlington
They are 144 of the 2,620 NPPES records with a practice address in Burlington, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Burlington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joshua Berkowitz, M.D.Burlington, MA 018031891802633
- Michael Britt, MD IDBurlington, MA 018031831186071
- Betsey Crawford, M.D.Burlington, MA 018031629174859
- Stephen Dong, M.D.Burlington, MA 018031437122470
- Jeffrey Gorvine, M.D.Burlington, MA 018031376553636
- Richard Kalish, MDBurlington, MA 018031154394955
- Sheri Keitz, MD, PHDBurlington, MA 018031336179514
- Elizabeth Nilson, M.D.Burlington, MA 018031639112022
Common questions
What is David L. Longworth, MD's NPI number?
David L. Longworth, MD's National Provider Identifier (NPI) is 1811092869, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David L. Longworth, MD located?
The NPPES record lists a practice address at 67 S Bedford St Ste 202E, Burlington, MA, 01803. Phone: (781) 744-7000. Providers update this record themselves, so call before visiting.
How can I verify David L. Longworth, MD's license?
NPPES lists Massachusetts license number 52646, 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.