DANIELLE WALTHERS NP
NPI 1174398085
Nurse Practitioner - Family in Islip, NY
About Danielle Walthers Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANIELLE WALTHERS NP (NPI 1174398085) is an individual family provider in Islip, New York, licensed in New York (F352925-01) and active in the NPI registry since November 2023. She is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Danielle Walthers 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 Danielle Walthers reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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 2
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.
Nyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11751 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.
ISLIP, NY 11751
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 Danielle Walthers's NPI number?
The NPI number for Danielle Walthers is 1174398085. It was assigned to this individual provider in the NPPES registry on November 20, 2023. The provider is also known as Danielle Mcmahon.
Where is Danielle Walthers located?
Danielle Walthers practices at 712 Main St, Islip, NY 11751. The listed phone number is (631) 666-3939.
What is Danielle Walthers's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Danielle Walthers enrolled in Medicare?
Yes. Danielle Walthers 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 Danielle Walthers's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Danielle Walthers reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Danielle Walthers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Danielle Walthers affiliated with any hospitals?
According to CMS data, Danielle Walthers is affiliated with Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Danielle Walthers was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.
# Danielle Walthers, NP · NPI 1174398085
Family physician in Islip, New York. Individual provider, active in the CMS NPPES registry since November 20, 2023.
## Identity
- **NPI:** 1174398085 (Entity type: Individual)
- **Enumerated:** November 20, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F352925-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 712 MAIN ST, Islip, NY 11751-3620
- **Phone:** (631) 666-3939
## 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:** New York University (NPI 1285826438, Boynton Beach, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** June 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1174398085) · Data from the CMS NPPES public registry.