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AARON WELLS GRIGG MD
NPI 1083804918
Pediatrics in La Grande, OR

Active since July 26, 2007PECOS Enrolled
900 SUNSET DR, LA GRANDE, OR 97850(541) 663-3159 Get Directions Write a Review

NPPES record last updated: July 21, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 21, 2021, Mar 18, 2021, Mar 29, 2018 (3 updates tracked since 2018).

About Aaron Wells Grigg Md NPPES

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

AARON WELLS GRIGG MD (NPI 1083804918) is an individual pediatrics provider in La Grande, Oregon, licensed in Oregon (MD204093) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Toppenish.

NPPES Registry Identity

NPI1083804918
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameAARON WELLS GRIGGCredential: MD
Location Address900 SUNSET DRLa Grande, OR 97850-1387
Mailing Address900 Sunset DrLa Grande, OR 97850-1387 · (541) 663-3159
Phone(541) 663-3159
Sole ProprietorNo
Enumeration DateJuly 26, 2007
Last NPPES UpdateJuly 21, 20213 updates tracked since enumeration
NPPES CertifiedJuly 21, 2021
✔ NPI 1083804918 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in OR · MD204093✔ Licensed in WA · MD60141702
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
900 SUNSET DR, La Grande, OR 97850
Open in Google Maps ↗

Secondary Practice Location 1

Location 1510 W 1st AveToppenish, WA 98948-1564 · Phone (509) 865-5600 · Fax (509) 865-5783

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Aaron Wells Grigg Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Aaron Grigg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grande Ronde Hospital, Inc.
Same address
Critical Access
900 SUNSET DR
La Grande, OR 97850
  • Reassigned Medicare billing, Oregon enrollment
  • 158 clinicians in this Medicare group
NPI 1467446195 (541) 963-1472

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97850 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
$84.82 typical visit price
range $54.96 – $166.64
Typical copayment $21.20 (range $13.74 – $41.66)
Most-billed visit code 99203
Established Patient
$97.16 typical visit price
range $17.68 – $136.19
Typical copayment $24.29 (range $4.42 – $34.04)
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 20

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

DANIELLE KIGGINS SISUL
Emergency Medicine
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
DR. GERALDINE GARDNER D.O.
Internal Medicine (Cardiovascular Disease)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-2328
SCOTT ALDEN WIDENER FNP-C
Nurse Practitioner
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-1412
BAYLEE NANETTE SWALES RNFA
Registered Nurse (Registered Nurse First Assistant)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
AARON SPRACKLEN DO PC
Anesthesiology
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
KORREENE ANN DUBRAY
Nurse Practitioner (Adult Health)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
TIMOTHY KAISER SCHOENFELDER MD
Anesthesiology
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421
MR. JACOB K. MCGINNIS AGACNP-BC
Nurse Practitioner (Gerontology)
900 SUNSET DR
LA GRANDE, OR 97850
Union County (541) 963-8421

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 Aaron Grigg's NPI number?

The NPI number for Aaron Grigg is 1083804918. It was assigned to this individual provider in the NPPES registry on July 26, 2007.

Where is Aaron Grigg located?

Aaron Grigg practices at 900 Sunset Dr, La Grande, OR 97850. The listed phone number is (541) 663-3159.

What is Aaron Grigg's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Aaron Grigg enrolled in Medicare?

Yes. Aaron Grigg is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Aaron Grigg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Grigg reassigns Medicare benefits to Grande Ronde Hospital, Inc. (La Grande, OR). 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 Aaron Grigg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Grigg accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Aaron Grigg 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 Aaron Grigg was last updated on July 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.