1. Home
  2. Directory
  3. Washington
  4. Mount Vernon
  5. Pediatrics
  6. NPI Profile

MARI HAMMERQUIST OATHES D.O.
NPI 1407218969
Pediatrics in Mount Vernon, WA

Active since March 24, 2016PECOS Enrolled
2320 FREEWAY DR, MOUNT VERNON, WA 98273(360) 814-6870(360) 814-6922 Get Directions Write a Review

NPPES record last updated: September 30, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 30, 2019, Sep 27, 2019, Mar 31, 2017 and 1 more (4 updates tracked since 2016).

About Mari Hammerquist Oathes D.o. NPPES

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

MARI HAMMERQUIST OATHES D.O. (NPI 1407218969) is an individual pediatrics provider in Mount Vernon, Washington, licensed in Washington (OP60949829) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Albuquerque.

NPPES Registry Identity

NPI1407218969
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARI HAMMERQUIST OATHESCredential: D.O.
Location Address2320 FREEWAY DRMount Vernon, WA 98273-5445
Mailing Address2320 Freeway DrMount Vernon, WA 98273-5445 · (360) 814-6870 · Fax (360) 814-6922
Phone(360) 814-6870
Fax(360) 814-6922
Sole ProprietorNo
Enumeration DateMarch 24, 2016
Last NPPES UpdateSeptember 30, 20194 updates tracked since enumeration
✔ NPI 1407218969 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in WA · OP60949829
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.
2320 FREEWAY DR, Mount Vernon, WA 98273
Open in Google Maps ↗

Other Names 1

Former Name (1)Mari J Hammerquist D.o.

Secondary Practice Location 1

Location 12211 Lomas Blvd NEAlbuquerque, NM 87106-2719 · Phone (505) 272-5551 · Fax (505) 272-6845

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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)

Mari Hammerquist Oathes D.o. 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 98273 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 20

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

DR. MICHAEL ARMANDO MARCHETTI M.D.
Dermatology
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6810
MISS CARA ALEXANDRA WALKER PA-C
Physician Assistant (Surgical)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6800
KEIRSTEN DEANNE MONTGOMERY RN, BSN, FNP-C
Nurse Practitioner (Family)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6315
DAVID MICHAEL MOURNING M.D.
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6800
PAULA ANDRADE WOLFF ARNP
Nurse Practitioner (Family)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6850
ASHTON TAYLOR DE CARDENAS PA-C
Physician Assistant (Surgical)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6800
MR. LUKE M WALTERS PA-C
Physician Assistant (Medical)
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6810
ALEXANDER WILLIS M.D.
Orthopaedic Surgery
2320 FREEWAY DR
MOUNT VERNON, WA 98273
Skagit County (360) 814-6800

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 Mari Oathes's NPI number?

The NPI number for Mari Oathes is 1407218969. It was assigned to this individual provider in the NPPES registry on March 24, 2016. The provider is also known as Mari J Hammerquist D.O..

Where is Mari Oathes located?

Mari Oathes practices at 2320 Freeway Dr, Mount Vernon, WA 98273. The listed phone number is (360) 814-6870.

What is Mari Oathes's specialty?

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

Is Mari Oathes enrolled in Medicare?

Yes. Mari Oathes is registered in the Medicare PECOS enrollment system.

What insurance does Mari Oathes accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mari Oathes 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 Mari Oathes was last updated on September 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.