CYNTHIA ANNETTE DIAZ NP
NPI 1366049991
Nurse Practitioner - Family in New York, NY
About Cynthia Annette Diaz Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CYNTHIA ANNETTE DIAZ NP (NPI 1366049991) is an individual family provider in New York, New York, licensed in New York (F345800) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS, is affiliated with St John's Riverside Hospital, and is a graduate of Mercy College (2020).
NPPES Registry Identity
Specialties & Licenses
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
Cynthia Annette Diaz 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
2Medicare enrollment records show Cynthia Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dobbs Ferry, NY 10522
- Reassigned Medicare billing, New York enrollment
- 61 clinicians in this Medicare group
Yorktown Heights, NY 10598
- Reassigned Medicare billing, New York enrollment
- 149 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St John's Riverside Hospital
Acute Care Hospitals · Yonkers, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10033
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 Cynthia Diaz's NPI number?
The NPI number for Cynthia Diaz is 1366049991. It was assigned to this individual provider in the NPPES registry on October 6, 2020.
Where is Cynthia Diaz located?
Cynthia Diaz practices at 506 Fort Washington Ave Apt 1F, New York, NY 10033. The listed phone number is (212) 568-0553.
What is Cynthia Diaz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Cynthia Diaz enrolled in Medicare?
Yes. Cynthia Diaz 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 Cynthia Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Diaz reassigns Medicare benefits to 2 organizations: Dobbs Ferry Emergency Medicine, PC (Dobbs Ferry, NY) and Divinity Medical Services PLLC (Yorktown Heights, NY). 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 Cynthia Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Cynthia Diaz affiliated with any hospitals?
According to CMS data, Cynthia Diaz is affiliated with St John's Riverside Hospital.
When was this NPI record last updated?
The NPPES record for Cynthia Diaz was last updated on December 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.
# Cynthia Annette Diaz, NP · NPI 1366049991
Family physician in New York, New York. Individual provider, active in the CMS NPPES registry since October 6, 2020.
## Identity
- **NPI:** 1366049991 (Entity type: Individual)
- **Enumerated:** October 6, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F345800 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 506 FORT WASHINGTON AVE APT 1F, New York, NY 10033-2081
- **Phone:** (212) 568-0553
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Dobbs Ferry Emergency Medicine, PC (NPI 1457381477, Dobbs Ferry, NY); Divinity Medical Services PLLC (NPI 1497159560, Yorktown Heights, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Mercy College, class of 2020
## Record status
- **NPPES last updated:** December 30, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1366049991) · Data from the CMS NPPES public registry.