ALLYSON MARIE KORNAHRENS FNP
NPI 1427573138
Nurse Practitioner - Family in Smithtown, NY
About Allyson Marie Kornahrens Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLYSON MARIE KORNAHRENS FNP (NPI 1427573138) is an individual family provider in Smithtown, New York, licensed in New York (342166) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and maintains a secondary practice location in Garden City.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 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
Allyson Marie Kornahrens Fnp 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 Allyson Kornahrens reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Riverhead, NY 11901
- Reassigned Medicare billing, New York enrollment
- 134 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 3
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.
Peconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11787 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SMITHTOWN, NY 11787
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 Allyson Kornahrens's NPI number?
The NPI number for Allyson Kornahrens is 1427573138. It was assigned to this individual provider in the NPPES registry on August 3, 2017.
Where is Allyson Kornahrens located?
Allyson Kornahrens practices at 267 E Main St, Smithtown, NY 11787. The listed phone number is (631) 418-8069.
What is Allyson Kornahrens's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Allyson Kornahrens enrolled in Medicare?
Yes. Allyson 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 Allyson Kornahrens's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allyson Kornahrens reassigns Medicare benefits to Central Suffolk Hospital (Riverhead, 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 Allyson Kornahrens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Allyson Kornahrens affiliated with any hospitals?
According to CMS data, Allyson Kornahrens is affiliated with Peconic Bay Medical Center.
When was this NPI record last updated?
The NPPES record for Allyson Kornahrens was last updated on July 21, 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.
# Allyson Marie Kornahrens, FNP · NPI 1427573138
Family physician in Smithtown, New York. Individual provider, active in the CMS NPPES registry since August 3, 2017.
## Identity
- **NPI:** 1427573138 (Entity type: Individual)
- **Enumerated:** August 3, 2017
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 342166 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 267 E MAIN ST, Smithtown, NY 11787-2874
- **Phone:** (631) 418-8069 · **Fax:** (631) 656-0470
## 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:** Central Suffolk Hospital (NPI 1043402050, Riverhead, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** July 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1427573138) · Data from the CMS NPPES public registry.