Juan J. Mallari, MD
Anesthesiology Physician · Waltham, MA
Juan J. Mallari, MD is an anesthesiology physician with a practice address in Waltham, Massachusetts, and NPI 1508834854, issued on Mar 12, 2006. Check the license (Massachusetts 78874, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Juan J. Mallari
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 78874 MA
037082 CT
25MA08043200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1440 Main Street, Waltham, MA 02451
- Phone
- (781) 891-9300
- Enumerated
- Mar 12, 2006
- Record last updated
- Jan 22, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (781) 891-9305
- Medicaid IDs
- 001370824 CT
3175987 MA - Medicare enrollment
- Enrolled (PECOS I20070508000359); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1986
- Entity
- Type 1 · individual
Also registered at 1440 Main Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Anesi, M.D.Ophthalmology Physician1003052788
- Charles Foster, M.D.Ophthalmology Physician1285617530
Verify Juan J. Mallari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 78874Check 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
- Jjm Medical Services PCLatham, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anesthesiology Physician providers in Massachusetts
There are 2,089 anesthesiology physician records in Massachusetts.
Other anesthesiology physician records in Massachusetts
- John Abadir, M.DBoston, MA1891937298
- Matthew AbadirBoston, MA1699120550
- Sarah Abbett, M.D.Boston, MA1902097736
- Brendan Abbott, DOBrighton, MA1477244796
- Megan Abbott, MDBoston, MA1730839333
- Timothy Abbott, D.O.Northampton, MA1316155294
- Kathryn Aberle, MDBoston, MA1669447835
- Scott AbernathyWorcester, MA1639630817
- Abdullah Abolkhair, M.D.Boston, MA1649434325
- Lori Abrahamian, M.D.Boston, MA1528012192
Common questions
What is Juan J. Mallari, MD's NPI number?
Juan J. Mallari, MD's National Provider Identifier (NPI) is 1508834854, issued on Mar 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Juan J. Mallari, MD located?
The NPPES record lists a practice address at 1440 Main Street, Waltham, MA, 02451. Phone: (781) 891-9300. Providers update this record themselves, so call before visiting.
How can I verify Juan J. Mallari, MD's license?
NPPES lists Massachusetts license number 78874, 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.