NPPES file of Aug 9, 2026

Dawn Marie O'Toole, NP

Family Nurse Practitioner · Waltham, MA

Dawn Marie O'Toole, NP is a family nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1568654598, issued on Aug 14, 2007. Check the license (Massachusetts 237339, 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
1568654598
Name
Dawn Marie O'Toole
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
237339 MA
Self-reported in NPPES; status is on the state search
Practice location
950 Winter St FL 4, Waltham, MA 02451
Phone
(781) 419-8354
Enumerated
Aug 14, 2007
Record last updated
Mar 6, 2025
Medicaid ID
110076870A MA
Medicare enrollment
Enrolled (PECOS I20071101000568); 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 family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →

Verify Dawn Marie O'Toole 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 237339    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. Bmc Affiliated Physicians, Inc.Brockton, MA

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

Dawn Marie O'Toole among 4,724 family nurse practitioner records in Massachusetts

Dawn Marie O'Toole, NP 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 2007, is newer than 9% of them.

  • NPI issued2007 · 9% of these records are older, 86% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2006 · median 2019 among the 2,704 with a school on file
  • Record last updated2025 · 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).

39 family nurse practitioner records list a practice address in Waltham

They are 39 of the 2,111 NPPES records with a practice address in Waltham, and 4,724 family nurse practitioner records in Massachusetts.

All 4,724 in Massachusetts → Every provider in Waltham → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Matthew Dimatteo, DNP, FNP-BCWaltham, MA 024511992687149
  2. Natasha Edwards, FNPWaltham, MA 024511942540737
  3. Judith Grivetti, NP-CWaltham, MA 024511336339142
  4. Phillip Heinen, APRNWaltham, MA 024511689288144
  5. Sharon Higgins, NP-CBoston, MA 024511811265598
  6. Edylle How, FNP-CWaltham, MA 024511437745957
  7. Jan Hutton, FNPWaltham, MA 024511336164870
  8. Beatrice Kamya, RNPWaltham, MA 024511124683545

Common questions

What is Dawn Marie O'Toole, NP's NPI number?

Dawn Marie O'Toole, NP's National Provider Identifier (NPI) is 1568654598, issued on Aug 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dawn Marie O'Toole, NP located?

The NPPES record lists a practice address at 950 Winter St FL 4, Waltham, MA, 02451. Phone: (781) 419-8354. Providers update this record themselves, so call before visiting.

How can I verify Dawn Marie O'Toole, NP's license?

NPPES lists Massachusetts license number 237339, 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.