Jeffrey Leon Arnold, M.D.
Clinical Pathology/Laboratory Medicine Physician · Boston, MA
Jeffrey Leon Arnold, M.D. is a clinical pathology/laboratory medicine physician with a practice address in Boston, Massachusetts, and NPI 1255611661, issued on Aug 17, 2011. Check the license (Massachusetts 266518, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Leon Arnold
- Credential
- M.D.
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- 266518 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- Aug 17, 2011
- Record last updated
- Jun 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240406000272); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 52 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
- Omer Abbak, PHARMDPharmacist1114500337
- Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
- Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
- Ahmad AboalfarajSurgery Physician1538517651
- Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250
Verify Jeffrey Leon Arnold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 266518Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Duke Health Integrated Practice IncDurham, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Leon Arnold among 52 clinical pathology/laboratory medicine physician records in Massachusetts
Jeffrey Leon Arnold, M.D. is one of 52 clinical pathology/laboratory medicine physician records with a practice address in Massachusetts. 37% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 81% of them.
- NPI issued2011 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 37% of these records are
- In the CMS Doctors and Clinicians fileYes · 35% of these records are
- Graduated2010 · median 1998 among the 18 with a school on file
- Record last updated2016 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Massachusetts
There are 52 clinical pathology/laboratory medicine physician records in Massachusetts.
All 52 in Massachusetts → Every provider in Boston → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Steve Bogen, M.D., PH.D.Boston, MA 021111598738551
- Ileana Lopez Plaza, MDBoston, MA 021111396727715
- Uriel Bulow, MDBoston, MA 021141902556087
- Eric Grewal, MDBoston, MA 021141669121943
- John Higgins, M.D.Boston, MA 021141639241409
- Jae Joung, MD PHDBoston, MA 021141386628345
- Erik KlontzBoston, MA 021141417533977
- Mara Lorenzi, MDBoston, MA 021141023099470
Common questions
What is Jeffrey Leon Arnold, M.D.'s NPI number?
Jeffrey Leon Arnold, M.D.'s National Provider Identifier (NPI) is 1255611661, issued on Aug 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Leon Arnold, M.D. located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Leon Arnold, M.D.'s license?
NPPES lists Massachusetts license number 266518, 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.