MRS. DAWN MARIE O'TOOLE NP
NPI 1568654598
Nurse Practitioner - Family in Waltham, MA
About Mrs. Dawn Marie O'toole Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. DAWN MARIE O'TOOLE NP (NPI 1568654598) is an individual family provider in Waltham, Massachusetts, licensed in Massachusetts (237339) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with Good Samaritan Medical Center, and maintains a secondary practice location in Brockton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Dawn Marie O'toole Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Dawn O'toole reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 1,103 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 1,574 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Medical Center
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Dawn O'toole's NPI number?
The NPI number for Dawn O'toole is 1568654598. It was assigned to this individual provider in the NPPES registry on August 14, 2007.
Where is Dawn O'toole located?
Dawn O'toole practices at 950 Winter St Fl 4 Optum, Waltham, MA 02451. The listed phone number is (781) 419-8354.
What is Dawn O'toole's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Dawn O'toole enrolled in Medicare?
Yes. Dawn O'toole is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Dawn O'toole's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dawn O'toole reassigns Medicare benefits to 3 organizations: Steward Medical Group, Inc (Watertown, MA), Lahey Clinic, Inc. (Burlington, MA) and Bmc Affiliated Physicians, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dawn O'toole's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dawn O'toole accept?
Health plans from WellSense Health Plan list Dawn O'toole as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Dawn O'toole affiliated with any hospitals?
According to CMS data, Dawn O'toole is affiliated with Good Samaritan Medical Center.
When was this NPI record last updated?
The NPPES record for Dawn O'toole was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mrs. Dawn Marie O'toole, NP · NPI 1568654598
Family physician in Waltham, Massachusetts. Individual provider, active in the CMS NPPES registry since August 14, 2007.
## Identity
- **NPI:** 1568654598 (Entity type: Individual)
- **Enumerated:** August 14, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 237339 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 950 WINTER ST FL 4, OPTUM, Waltham, MA 02451-1424
- **Phone:** (781) 419-8354
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Steward Medical Group, Inc (NPI 1629398219, Watertown, MA); Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA); Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** March 6, 2025
- **Other identifiers:** Medicaid 110076870A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1568654598) · Data from the CMS NPPES public registry.