Quick answers
- Does Teresa A. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Teresa A. Sullivan 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 Teresa A. Sullivan see?
- In 2024, CMS data shows 175 Original Medicare patients and 389 services for Teresa A. Sullivan. This counts Original Medicare only and measures volume, not quality.
- What is Teresa A. Sullivan's NPI number?
- 1659847416. 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 Teresa A. Sullivan, 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 | 175 |
|---|---|
| Services billed to Medicare | 389 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)56 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)53 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)47 services
- Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)36 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)26 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 cholesterol72%
- High blood pressure62%
- Arthritis43%
- Diabetes36%
- Anxiety27%
- Ischemic heart disease26%
Hospitals where Teresa A. Sullivan works
Medicare's Facility Affiliation Data lists Teresa A. Sullivan 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.
- Good Samaritan Hospital of SuffernSuffern, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330158
Practice locations
Addresses where Teresa A. Sullivan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Main StMonsey, NY 10952 (212) 734‑6621
- 255 Lafayette AveSuffern, NY 10901 (845) 368‑5000
Group practices
Medicare enrollment lists Teresa A. Sullivan as a member of these groups (CMS data updated October 2, 2026).
- Physicians Medical Associates New York PC102 clinicians in the group
- CARE365 LLC14 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Monsey
Clinicians with the same Medicare primary specialty in Monsey, NY — not a recommendation.
Other clinicians in Physicians Medical Associates New York PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659847416 |
| 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