LEANNE J KOLESKI NP-C
NPI 1619209392
Nurse Practitioner - Adult Health in Mesa, AZ
About Leanne J Koleski Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEANNE J KOLESKI NP-C (NPI 1619209392) is an individual adult health provider in Mesa, Arizona, licensed in Arizona (RN119753) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Leanne J Koleski Np-c 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 Leanne Koleski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mesa, AZ 85201
- Reassigned Medicare billing, Arizona enrollment
- 2 clinicians in this Medicare group
Phoenix, AZ 85022
- Reassigned Medicare billing, Arizona enrollment
- 23 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 6
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 85201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Leanne Koleski's NPI number?
The NPI number for Leanne Koleski is 1619209392. It was assigned to this individual provider in the NPPES registry on February 5, 2010.
Where is Leanne Koleski located?
Leanne Koleski practices at 204 N Center St, Mesa, AZ 85201. The listed phone number is (480) 962-0868.
What is Leanne Koleski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Leanne Koleski enrolled in Medicare?
Yes. Leanne Koleski 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 Leanne Koleski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leanne Koleski reassigns Medicare benefits to 2 organizations: Central Mesa Medical PC (Mesa, AZ) and Siren Medical PC (Phoenix, AZ). 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 Leanne Koleski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leanne Koleski accept?
Health plans from Imperial Insurance Companies, Inc. and Oscar Health Plan, Inc. list Leanne Koleski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Leanne Koleski was last updated on August 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.