NPPES file of Aug 9, 2026

Mary Simpson, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner · Roxbury, MA

Mary Simpson, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Roxbury, Massachusetts, and NPI 1679443451, issued on Nov 7, 2025. Check the license (Massachusetts RN2334490, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679443451
Name
Mary Simpson
Credential
PMHNP-BC
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
RN2334490 MA
Self-reported in NPPES; status is on the state search
Practice location
45 Dimock St, Roxbury, MA 02119
Phone
(617) 442-8800
Enumerated
Nov 7, 2025
Record last updated
Jan 13, 2026
Fax
(617) 442-4088
Medicare enrollment
Enrolled (PECOS I20260218000481); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →

Also registered at 45 Dimock St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adeyemi Adeniyi, A-GNPPrimary Care Nurse Practitioner1780238659
  2. Nikita Aneja, ODOptometrist1861984031
  3. Karina Arias, LICSWClinical Social Worker1386191583
  4. Kira Armajani, LICSWClinical Social Worker1326395435
  5. Khaled Asaad, BDSPediatric Dentistry1295296671
  6. Melanie Baker, RD, LDNPediatric Nutrition Registered Dietitian1598894719

Verify Mary Simpson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2334490    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Dimock Community Health Center, Inc.Roxbury, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Simpson among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts

Mary Simpson, PMHNP-BC is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 85% of them.

  • NPI issued2025 · 85% of these records are older, 5% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2025 · median 2021 among the 1,309 with a school on file
  • Record last updated2026 · 23% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in Massachusetts

There are 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.

All 2,169 in Massachusetts → Every provider in Roxbury → Psychiatric/Mental Health Nurse Practitioner nationwide →

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Austin AgbonifoRoxbury, MA 021191750927489
  2. Judana BennettRoxbury, MA 021191073130167
  3. Anna Marquez, PMHNP-BC, FNP-CBoston, MA 021191194361550
  4. Comfort AtwereboanahBoston, MA 021181003660382
  5. Evelyn Bulega, CNPBoston, MA 021181295561215
  6. Kaleigh Clowery, CNPBoston, MA 021181407614993
  7. Elizabeth Daskalakis, PMHNP-BCBoston, MA 021181073432571
  8. Kayla Flynn, CNPBoston, MA 021181013720804

Common questions

What is Mary Simpson, PMHNP-BC's NPI number?

Mary Simpson, PMHNP-BC's National Provider Identifier (NPI) is 1679443451, issued on Nov 7, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mary Simpson, PMHNP-BC located?

The NPPES record lists a practice address at 45 Dimock St, Roxbury, MA, 02119. Phone: (617) 442-8800. Providers update this record themselves, so call before visiting.

How can I verify Mary Simpson, PMHNP-BC's license?

NPPES lists Massachusetts license number RN2334490, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.