Quick answers
- Does Dawn M. Heffernan accept Medicare assignment?
- Yes. Medicare's clinician data says Dawn M. Heffernan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Dawn M. Heffernan see?
- In 2024, CMS data shows 179 Original Medicare patients and 180 services for Dawn M. Heffernan. This counts Original Medicare only and measures volume, not quality.
- What is Dawn M. Heffernan's NPI number?
- 1740479922. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Dawn M. Heffernan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 179 |
|---|---|
| Services billed to Medicare | 180 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for other procedure on large bowel using an endoscope (00811)48 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)21 services
- Anesthesia for exam of colon using an endoscope (00812)16 services
- Anesthesia for procedure on small and large bowel using an endoscope (00813)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol74%
- High blood pressure73%
- Arthritis53%
- Anxiety37%
- Chronic kidney disease36%
- Depression31%
Hospitals where Dawn M. Heffernan works
Medicare's Facility Affiliation Data lists Dawn M. Heffernan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Cambridge Health AllianceCambridge, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220011
- North Shore Medical Center -Salem, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220035
Practice locations
Addresses where Dawn M. Heffernan is enrolled with Medicare (CMS data updated October 2, 2026).
- 103 Garland StEverett, MA 02149 (617) 389‑6270
- 1493 Cambridge StCambridge, MA 02139 (617) 665‑1000
- 47 Middlesex TpkeBurlington, MA 01803 (857) 282‑8100
- 81 Highland AveSalem, MA 01970 (617) 726‑4121
- 91 Montvale Ave, Suite 103Stoneham, MA 02180 (781) 835‑2111
Group practices
Medicare enrollment lists Dawn M. Heffernan as a member of these groups (CMS data updated October 2, 2026).
- Mass General Brigham Medical Group, Inc.139 clinicians in the group
- Lawrence Anesthesia Services LLC125 clinicians in the group
- Dha Endoscopy LLC19 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Massachusetts →
Other nurse anesthetists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Other clinicians in Mass General Brigham Medical Group, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740479922 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians