Katie Mattila NP
Also known as
- Formerly known asLongenecker, Katie Ann
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1124891858 is registered to Katie Mattila NP, a Nurse Practitioner practising at 790 Fuller Ave Ne in Grand Rapids, Michigan. Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Katie Mattila NP has been enumerated in the National Provider Identifier (NPI) registry since 2023.
Medicare enrollment
This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20240202001856Nurse PractitionerMN
- I20250716000549Nurse PractitionerMI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Katie Mattila NP accepts. To confirm in-network status with your specific health plan, contact Katie Mattila NP directly at (616) 336-3909.
Frequently asked
Yes. NPI 1124891858 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (616) 336-3909.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Katie Mattila NP is a Type-1 individual NPI.