Joan Mathews, MD
Pediatrics Physician · Cambridge, MA
Joan Mathews, MD is a pediatrics physician with a practice address in Cambridge, Massachusetts, and NPI 1942294855, issued on Sep 7, 2005. Check the license (Massachusetts 41038, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joan Mathews
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 41038 MA
Self-reported in NPPES; status is on the state search - Practice location
- 777 Concord Ave, Cambridge, MA 02138
- Phone
- (617) 876-6800
- Enumerated
- Sep 7, 2005
- Entity
- Type 1 · individual
Also registered at 777 Concord Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Reid Boswell, M.D., M.P.H.Preventive Medicine/Occupational Environmental Medicine Physician1265417646
- Susan Grace, D.C.Chiropractor1679893697
- Byron Hartunian, M.D.Specialist1700986122
- Lydia Knutson, D.C.Chiropractor1134396344
- Kellianna Maya, D.C.Chiropractor1801080551
- Lisa Santoro, LMT, LLCCMechanotherapist1245560911
Verify Joan Mathews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 41038Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
99% fewer Medicare Part D claims than the average pediatrics physician in 2024
11 Medicare Part D claims, against an average of 818 among the 8,211 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
57 pediatrics physician records list a Cambridge practice address
They are 57 of the 5,145 NPPES records with a Cambridge practice address, and 3,067 pediatrics physician records in Massachusetts.
All 57 in Cambridge → All 3,067 in Massachusetts → Every provider in Cambridge →
Other pediatrics physician records in Massachusetts
- Marissa AaronBoston, MA1538687827
- Ralph Aarons, MDBrighton, MA1407841570
- Mary-Alice Abbott, MDWorcester, MA1982799417
- Ebla Abd AlrahmanWorcester, MA1255966743
- James Abel, M.D.Pelham, MA1255521381
- Aileen Abesamis, MDBrockton, MA1619056546
- Nora Abo-Sido, MDBoston, MA1215425111
- Claire Abraham, MDBoston, MA1942731161
- Shari Abramowitz, M.D.Boston, MA1558346593
- Aya Abu-El-Haija, MDBoston, MA1821337791
Common questions
What is Joan Mathews, MD's NPI number?
Joan Mathews, MD's National Provider Identifier (NPI) is 1942294855, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joan Mathews, MD located?
The NPPES record lists a practice address at 777 Concord Ave, Cambridge, MA, 02138. Phone: (617) 876-6800. Providers update this record themselves, so call before visiting.
How can I verify Joan Mathews, MD's license?
NPPES lists Massachusetts license number 41038, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joan Mathews, MD prescribe under Medicare Part D?
In 2024, Joan Mathews, MD had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 818. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.