SILVIA ADALJISA DIAZ NP
NPI 1124309174
Nurse Practitioner - Adult Health in Patchogue, NY
About Silvia Adaljisa Diaz Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SILVIA ADALJISA DIAZ NP (NPI 1124309174) is an individual adult health provider in Patchogue, New York, licensed in New York (F309691) and active in the NPI registry since September 2011. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses 2
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
Silvia Adaljisa 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 Reassignment
Medicare enrollment records show Silvia Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Port Jefferson Station, NY 11776
- Reassigned Medicare billing, New York enrollment
- 636 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11772 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 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Silvia Diaz's NPI number?
The NPI number for Silvia Diaz is 1124309174. It was assigned to this individual provider in the NPPES registry on September 5, 2011.
Where is Silvia Diaz located?
Silvia Diaz practices at 365 E Main St, Patchogue, NY 11772. The listed phone number is (631) 751-3000.
What is Silvia Diaz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Silvia Diaz enrolled in Medicare?
Yes. Silvia 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 organization bills Medicare for Silvia Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Silvia Diaz reassigns Medicare benefits to North Shore Hematology Oncology Associates PC (Port Jefferson Station, NY). The 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 Silvia Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Silvia Diaz was last updated on July 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Silvia Adaljisa Diaz, NP · NPI 1124309174
Adult Health physician in Patchogue, New York. Individual provider, active in the CMS NPPES registry since September 5, 2011.
## Identity
- **NPI:** 1124309174 (Entity type: Individual)
- **Enumerated:** September 5, 2011
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** F309691 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 365 E MAIN ST, Patchogue, NY 11772-3145
- **Phone:** (631) 751-3000 · **Fax:** (631) 509-6559
## 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:** North Shore Hematology Oncology Associates PC (NPI 1396794574, Port Jefferson Station, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** July 15, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1124309174) · Data from the CMS NPPES public registry.