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JEFFREY CLARK ERNST MD
NPI 1790721736
Pediatrics in Mountlake Terrace, WA

Active since June 20, 2006PECOS Enrolled
23511 56TH AVE W STE 105, MOUNTLAKE TERRACE, WA 98043(206) 546-2421(206) 542-9028 Get Directions Write a Review

NPPES record last updated: February 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Jeffrey Clark Ernst Md NPPES

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

JEFFREY CLARK ERNST MD (NPI 1790721736) is an individual pediatrics provider in Mountlake Terrace, Washington, licensed in Washington (38513) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790721736
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameJEFFREY CLARK ERNSTCredential: MD
Location Address23511 56TH AVE W STE 105Mountlake Terrace, WA 98043-5285
Mailing Address23511 56th Ave W Ste 105Mountlake Terrace, WA 98043-5285 · (206) 546-2421 · Fax (206) 542-9028
Phone(206) 546-2421
Fax(206) 542-9028
Sole ProprietorNo
Enumeration DateJune 20, 2006
Last NPPES UpdateFebruary 14, 2025
NPPES CertifiedFebruary 14, 2025
✔ NPI 1790721736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in WA · 38513
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.
23511 56TH AVE W STE 105, Mountlake Terrace, WA 98043
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Other Identifiers 1

Medicaid8253270WA

Accepted Insurance

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

Jeffrey Clark Ernst 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98043 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 5

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

MELISSA CECILIA WALSH MD
Pediatrics
23511 56TH AVE W STE 105
MOUNTLAKE TERRACE, WA 98043
Snohomish County (206) 546-2421
SHAYNA DANIELLE HERNS MD
Pediatrics
23511 56TH AVE W STE 105
MOUNTLAKE TERRACE, WA 98043
Snohomish County (206) 546-2421
GISELLE FALKENBERG MD
Pediatrics
23511 56TH AVE W STE 105
MOUNTLAKE TERRACE, WA 98043
Snohomish County (206) 546-2421
DR. KABERI K DANNEMILLER NP
Nurse Practitioner (Pediatrics)
23511 56TH AVE W STE 105
MOUNTLAKE TERRACE, WA 98043
Snohomish County (206) 546-2421
UMBRELLA PEDIATRICS PC
Pediatrics
23511 56TH AVE W STE 105
MOUNTLAKE TERRACE, WA 98043
Snohomish County (206) 546-2421

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 Jeffrey Ernst's NPI number?

The NPI number for Jeffrey Ernst is 1790721736. It was assigned to this individual provider in the NPPES registry on June 20, 2006.

Where is Jeffrey Ernst located?

Jeffrey Ernst practices at 23511 56th Ave W Ste 105, Mountlake Terrace, WA 98043. The listed phone number is (206) 546-2421.

What is Jeffrey Ernst's specialty?

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

Is Jeffrey Ernst enrolled in Medicare?

Yes. Jeffrey Ernst is registered in the Medicare PECOS enrollment system.

What insurance does Jeffrey Ernst accept?

Health plans from PacificSource Health Plans and Premera Blue Cross Blue Shield of Alaska list Jeffrey Ernst 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 Jeffrey Ernst was last updated on February 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.