Mary Elizabeth Thornton, CNP
Psychiatry Physician · Reading, MA
Mary Elizabeth Thornton, CNP is a psychiatry physician with a practice address in Reading, Massachusetts, and NPI 1730805391, issued on Oct 17, 2022. Check the license (Massachusetts RN267421, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Thornton
- Credential
- CNP
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- RN267421 MA
Self-reported in NPPES; status is on the state search - Practice location
- 386 Grove St, Reading, MA 01867
- Phone
- (781) 258-3044
- Enumerated
- Oct 17, 2022
- Record last updated
- Oct 17, 2022
- Medicare enrollment
- Enrolled (PECOS I20230331001286); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Verify Mary Elizabeth Thornton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license RN267421Check 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
- North Shore Medical Center, Inc.Salem, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Elizabeth Thornton among 2,736 psychiatry physician records in Massachusetts
Mary Elizabeth Thornton, CNP is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2022 · median 2005 among the 1,219 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Massachusetts
There are 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Reading → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Richard Falzone, MDNorth Reading, MA 018641841271707
- Paul Menitoff, MDN Chelmsford, MA 018631578545562
- Usha Tripathi, MDNorth Chelmsford, MA 018631205818010
- Ronald Winfield, MDNorth Chelmsford, MA 018631679554927
- Debra Little, M.D.Merrimac, MA 018601154571016
- Ruby Boyd, MDTewksbury, MA 018761467612861
- Kathleen Brady, M.D.Tewksbury, MA 018761891732533
- Daniel Breslin, M.D.Tewksbury, MA 018761053536391
Common questions
What is Mary Elizabeth Thornton, CNP's NPI number?
Mary Elizabeth Thornton, CNP's National Provider Identifier (NPI) is 1730805391, issued on Oct 17, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Thornton, CNP located?
The NPPES record lists a practice address at 386 Grove St, Reading, MA, 01867. Phone: (781) 258-3044. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Thornton, CNP's license?
NPPES lists Massachusetts license number RN267421, 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.