1. Home
  2. Directory
  3. Washington
  4. Richland
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RIAN C. FREDERICK ARNP
NPI 1326901083
Nurse Practitioner - Family in Richland, WA

Active since December 08, 2025PECOS Enrolled
780 SWIFT BLVD STE 101, RICHLAND, WA 99352(509) 942-3060(509) 942-2297 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Sep 23, 2026, Dec 8, 2025 (2 updates tracked since 2025).

About Rian C. Frederick Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RIAN C. FREDERICK ARNP (NPI 1326901083) is an individual family provider in Richland, Washington, licensed in Washington (AP.70138945) and active in the NPI registry since December 2025. She is enrolled in Medicare PECOS and maintains a secondary practice location in Spanish Fork.

NPPES Registry Identity

NPI1326901083
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameRIAN C. FREDERICKCredential: ARNP
Location Address780 SWIFT BLVD STE 101Richland, WA 99352-3545
Mailing Address780 Swift Blvd Ste 11Richland, WA 99352-3524 · (509) 942-3060 · Fax (509) 942-2297
Phone(509) 942-3060
Fax(509) 942-2297
Sole ProprietorYes
Enumeration DateDecember 8, 2025
Last NPPES UpdateSeptember 23, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2026
✔ NPI 1326901083 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in WA · AP.70138945
Also ListedNurse PractitionerTaxonomy 363L00000X · License 117376274405 (UT)
780 SWIFT BLVD STE 101, Richland, WA 99352
Open in Google Maps ↗

Other Names 1

Former Name (1)Rian C. Naef Arnp

Secondary Practice Location 1

Location 1528 N 1000 ESpanish Fork, UT 84660-1645 · Phone (509) 528-4072

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rian C. Frederick Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99352 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DIANA JEAN WOOLLUM MN, ARNP
Nurse Practitioner (Family)
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3060
KANIKA CHAWLA MD
Surgery (Surgical Critical Care)
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3060
PHILIP BIGGS MD
Otolaryngology
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3178
JULIANA ASENCIO PA-C
Physician Assistant
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3070
NAWAR ALKHAMESI MD, PHD
Colon & Rectal Surgery
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3060
JESSE BELNAP
Physician Assistant
780 SWIFT BLVD STE 101
RICHLAND, WA 99352
Benton County (509) 942-3060

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 Rian Frederick's NPI number?

The NPI number for Rian Frederick is 1326901083. It was assigned to this individual provider in the NPPES registry on December 8, 2025. The provider is also known as Rian C. Naef Arnp.

Where is Rian Frederick located?

Rian Frederick practices at 780 Swift Blvd Ste 101, Richland, WA 99352. The listed phone number is (509) 942-3060.

What is Rian Frederick's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Rian Frederick enrolled in Medicare?

Yes. Rian Frederick is registered in the Medicare PECOS enrollment system.

What insurance does Rian Frederick accept?

Health plans from Ambetter Health list Rian Frederick 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 Rian Frederick was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.