RITA A KOSTELIK ARNP
NPI 1003009135
Nurse Practitioner - Psychiatric/Mental Health in Bellingham, WA
About Rita A Kostelik Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RITA A KOSTELIK ARNP (NPI 1003009135) is an individual psychiatric/mental health provider in Bellingham, Washington, licensed in Washington (AP30007853) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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
Rita A Kostelik Arnp 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
5Medicare enrollment records show Rita Kostelik reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Vernon, WA 98273
- Reassigned Medicare billing, Washington enrollment
- 463 clinicians in this Medicare group
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Mukilteo, WA 98275
- Reassigned Medicare billing, Washington enrollment
- 23 clinicians in this Medicare group
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 911 clinicians in this Medicare group
Lakewood, WA 98499
- Reassigned Medicare billing, Washington enrollment
- 18 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 7
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 98226 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 3
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 Rita Kostelik's NPI number?
The NPI number for Rita Kostelik is 1003009135. It was assigned to this individual provider in the NPPES registry on August 22, 2007. The provider is also known as Rita A Marinkovich Arnp.
Where is Rita Kostelik located?
Rita Kostelik practices at 192 E Bakerview Rd Ste 102, Bellingham, WA 98226. The listed phone number is (425) 212-4200.
What is Rita Kostelik's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Rita Kostelik enrolled in Medicare?
Yes. Rita Kostelik 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 Rita Kostelik's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rita Kostelik reassigns Medicare benefits to 5 organizations: Public Hospital Dist No 1 Skagit (Mount Vernon, WA), Optum Care Washington PLLC (Arlington, WA), Novari Primary Care LLC (Mukilteo, WA), The Polyclinic PLLC (Seattle, WA) and Neurostim Tms, Ps (Lakewood, WA). 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 Rita Kostelik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rita Kostelik accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Rita Kostelik 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 Rita Kostelik was last updated on September 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Rita A Kostelik, ARNP · NPI 1003009135
Psychiatric/Mental Health physician in Bellingham, Washington. Individual provider, active in the CMS NPPES registry since August 22, 2007.
## Identity
- **NPI:** 1003009135 (Entity type: Individual)
- **Enumerated:** August 22, 2007
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** AP30007853 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 192 E BAKERVIEW RD STE 102, Bellingham, WA 98226-8179
- **Phone:** (425) 212-4200
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Public Hospital Dist No 1 Skagit (NPI 1811460652, Mount Vernon, WA); Optum Care Washington PLLC (NPI 1366154304, Arlington, WA); Novari Primary Care LLC (NPI 1598272155, Mukilteo, WA); The Polyclinic PLLC (NPI 1174594634, Seattle, WA); Neurostim Tms, Ps (NPI 1710415617, Lakewood, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** September 5, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1003009135) · Data from the CMS NPPES public registry.