Quick answers
- Does Cynthia A. Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Cynthia A. Diaz 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 Cynthia A. Diaz see?
- In 2024, CMS data shows 98 Original Medicare patients and 320 services for Cynthia A. Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Cynthia A. Diaz's NPI number?
- 1366049991. 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 Cynthia A. Diaz, 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 | 98 |
|---|---|
| Services billed to Medicare | 320 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)78 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)61 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)55 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
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)25 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 cholesterol68%
- High blood pressure65%
- Arthritis44%
- Anxiety32%
- Diabetes30%
- Depression26%
Hospitals where Cynthia A. Diaz works
Medicare's Facility Affiliation Data lists Cynthia A. Diaz 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.
- St John's Riverside HospitalYonkers, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330208
Practice locations
Addresses where Cynthia A. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 128 Ashford AveDobbs Ferry, NY 10522 (914) 964‑4370
- 332 E 149th StBronx, NY 10451 (347) 329‑4010
- 5 N Airmont RdAirmont, NY 10901 (845) 547‑0300
- 967 N BroadwayYonkers, NY 10701 (914) 964‑4370
Group practices
Medicare enrollment lists Cynthia A. Diaz as a member of these groups (CMS data updated October 2, 2026).
- Divinity Medical Services PLLC94 clinicians in the group
- Dobbs Ferry Emergency Medicine, PC39 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Dobbs Ferry
Clinicians with the same Medicare primary specialty in Dobbs Ferry, NY — not a recommendation.
Other clinicians in Divinity Medical Services PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| School | Mercy College |
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366049991 |
| 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