Joan Helene Mathews, MD
Pediatrics Physician · Cambridge, MA
Joan Helene 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 Helene 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
- Record last updated
- Jul 13, 2026
- Fax
- (617) 876-5713
- Medicaid ID
- 0131032 MA
- Entity
- Type 1 · individual
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Verify Joan Helene 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
97% fewer Medicare Part D claims than the average pediatrics physician in 2024
11 Medicare Part D claims, against an average of 375 among the 5,609 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.
Joan Helene Mathews among 2,628 pediatrics physician records in Massachusetts
Joan Helene Mathews, MD is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileNo · 12% of these records are
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 pediatrics physician records list a practice address in Cambridge
They are 58 of the 5,145 NPPES records with a practice address in Cambridge, and 2,628 pediatrics physician records in Massachusetts.
All 2,628 in Massachusetts → Every provider in Cambridge → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Margaret Barsam, M.D.Cambridge, MA 021381598747412
- Amita Chopra, M.D.Cambridge, MA 021381659357671
- Michelle Dorrell, M.D.Cambridge, MA 021381053358093
- Daniel Epstein, MDCambridge, MA 021381083726111
- Jennifer Gill, M.D.Cambridge, MA 021381801875380
- Susan Holzman, MDCambridge, MA 021381609980952
- Deborah James, MDCambridge, MA 021381831161421
- Thomas Krueger, M.D.Cambridge, MA 021381356320394
Common questions
What is Joan Helene Mathews, MD's NPI number?
Joan Helene 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 Helene 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 Helene 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://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joan Helene Mathews, MD prescribe under Medicare Part D?
In 2024, Joan Helene Mathews, MD had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.