Claire Margaret Mathon, CNP
Family Nurse Practitioner · East Boston, MA
Claire Margaret Mathon, CNP is a family nurse practitioner with a practice address in East Boston, Massachusetts, and NPI 1184390924, issued on Aug 20, 2021. Check the license (Massachusetts RN2337646, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Claire Margaret Mathon
- Credential
- CNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2337646 MA
Self-reported in NPPES; status is on the state search - Practice location
- 20 Maverick SQ, East Boston, MA 02128
- Phone
- (617) 569-5800
- Enumerated
- Aug 20, 2021
- Record last updated
- Jun 15, 2022
- Fax
- (617) 568-4756
- Medicare enrollment
- Enrolled (PECOS I20220712003659); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 20 Maverick SQ
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Ajanel Ziegra, CNPFamily Nurse Practitioner1780383067
- Maria Bastos, NPNurse Practitioner1720330558
- Sumati Bhalla, DDSGeneral Practice Dentistry1013681477
- Rachel Blake, MDObstetrics & Gynecology Physician1326494998
- Tamsen Brown, MS, CGCGenetic Counselor (M.S.)1366981276
- Julia Buresh-Kapoor, CNPFamily Nurse Practitioner1558819441
Verify Claire Margaret Mathon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2337646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average family nurse practitioner in 2024
738 Medicare Part D claims for 152 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium69 claims
- Lisinopril57 claims
- Gabapentin33 claims
- Levothyroxine Sodium30 claims
- Amlodipine Besylate26 claims
- Fluticasone Propionate25 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.
Bills Medicare through one group practice
- Internal Medical Associates-EbnhcEast Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Claire Margaret Mathon among 4,724 family nurse practitioner records in Massachusetts
Claire Margaret Mathon, CNP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2019 among the 2,704 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 family nurse practitioner records list a practice address in East Boston
They are 62 of the 587 NPPES records with a practice address in East Boston, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in East Boston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Michele Crissman, RNPEast Boston, MA 021281043383813
- Ramona Flightner, MSN, CRNPEast Boston, MA 021281376542001
- Catherine Franklin, NP, DNPEast Boston, MA 021281629177159
- Mary Gorman, RNPEast Boston, MA 021281346289832
- Andrea Haffty, CNPEast Boston, MA 021281679842371
- Catherine Hopkins, NPEast Boston, MA 021281497987986
- Candace Linehan, RNPEast Boston, MA 021281730108143
- Anita Morris, RNPEast Boston, MA 021281649219213
Common questions
What is Claire Margaret Mathon, CNP's NPI number?
Claire Margaret Mathon, CNP's National Provider Identifier (NPI) is 1184390924, issued on Aug 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Claire Margaret Mathon, CNP located?
The NPPES record lists a practice address at 20 Maverick SQ, East Boston, MA, 02128. Phone: (617) 569-5800. Providers update this record themselves, so call before visiting.
How can I verify Claire Margaret Mathon, CNP's license?
NPPES lists Massachusetts license number RN2337646, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Claire Margaret Mathon, CNP prescribe under Medicare Part D?
In 2024, Claire Margaret Mathon, CNP had 738 Medicare Part D claims for 152 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.