Quick answers
- Does Thao L. Costanza accept Medicare assignment?
- Yes. Medicare's clinician data says Thao L. Costanza 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 Thao L. Costanza see?
- In 2024, CMS data shows 50 Original Medicare patients and 53 services for Thao L. Costanza. This counts Original Medicare only and measures volume, not quality.
- What is Thao L. Costanza's NPI number?
- 1114433323. 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 Thao L. Costanza, 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 | 50 |
|---|---|
| Services billed to Medicare | 53 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Emergency department visit with moderate level of medical decision making (99284)15 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)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 blood pressure75%
- High cholesterol75%
- Stroke or mini-stroke75%
- Arthritis60%
- Ischemic heart disease54%
- Diabetes46%
Hospitals where Thao L. Costanza works
Medicare's Facility Affiliation Data lists Thao L. Costanza 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.
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220086
- Exeter Hospital IncExeter, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300023
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220171
Practice locations
Addresses where Thao L. Costanza is enrolled with Medicare (CMS data updated October 2, 2026).
- 29 Mall RdBurlington, MA 01805
- 330 Brookline AveBoston, MA 02215 (617) 667‑7000
- 41 Mall RdBurlington, MA 01805
Group practices
Medicare enrollment lists Thao L. Costanza as a member of these groups (CMS data updated October 2, 2026).
- Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc1,740 clinicians in the group
- Lahey Clinic Inc1,381 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Burlington
Clinicians with the same Medicare primary specialty in Burlington, MA — not a recommendation.
Other clinicians in Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114433323 |
| 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