ALLISON MARIE KORNAHRENS PMHNP
NPI 1013660588
Nurse Practitioner - Psychiatric/Mental Health in Bay Shore, NY
About Allison Marie Kornahrens Pmhnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON MARIE KORNAHRENS PMHNP (NPI 1013660588) is an individual psychiatric/mental health provider in Bay Shore, New York, licensed in New York (403752) and active in the NPI registry since February 2022. She is enrolled in Medicare PECOS, is affiliated with St Catherine Of Siena Hospital Medical Center, and is a graduate of Other (2021).
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
Allison Marie Kornahrens Pmhnp 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 Allison Kornahrens reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Samaritan Medical Services PC
- 209 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 4
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 Catherine Of Siena Hospital Medical Center
Acute Care Hospitals · Smithtown, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11706 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Allison Kornahrens's NPI number?
The NPI number for Allison Kornahrens is 1013660588. It was assigned to this individual provider in the NPPES registry on February 3, 2022.
Where is Allison Kornahrens located?
Allison Kornahrens practices at 88 Ithaca St, Bay Shore, NY 11706. The listed phone number is (631) 252-3249.
What is Allison Kornahrens's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Allison Kornahrens enrolled in Medicare?
Yes. Allison Kornahrens 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 Allison Kornahrens's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Kornahrens reassigns Medicare benefits to Samaritan Medical Services, P.C. (West Islip, 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 Allison Kornahrens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Allison Kornahrens affiliated with any hospitals?
According to CMS data, Allison Kornahrens is affiliated with St Catherine Of Siena Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Allison Kornahrens was last updated on February 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Allison Marie Kornahrens, PMHNP · NPI 1013660588
Psychiatric/Mental Health physician in Bay Shore, New York. Individual provider, active in the CMS NPPES registry since February 3, 2022.
## Identity
- **NPI:** 1013660588 (Entity type: Individual)
- **Enumerated:** February 3, 2022
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 403752 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 88 ITHACA ST, Bay Shore, NY 11706-4514
- **Phone:** (631) 252-3249
## 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:** Samaritan Medical Services, P.C. (NPI 1124184544, West Islip, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** February 3, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1013660588) · Data from the CMS NPPES public registry.