JEFFREY CLARK ERNST MD
NPI 1790721736
Pediatrics in Mountlake Terrace, WA
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
Specialties & Licenses
Other Identifiers 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 (PECOS)
Jeffrey Clark Ernst Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jeffrey Ernst reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountlake Terrace, WA 98043
- Reassigned Medicare billing, Washington enrollment
- 12 clinicians in this Medicare group
Shoreline, WA 98177
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Richmond Pediatric Clinic Inc Ps
- 2 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.
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.
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.
MOUNTLAKE TERRACE, WA 98043
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.
Which organizations bill Medicare for Jeffrey Ernst's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Ernst reassigns Medicare benefits to 2 organizations: Umbrella Pediatrics PC (Mountlake Terrace, WA) and Richmond Pediatric Clinic Inc. P.S. (Shoreline, 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 Jeffrey Ernst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jeffrey Ernst accept?
Health plans from 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 20 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.
# Jeffrey Clark Ernst, MD · NPI 1790721736
Pediatrics physician in Mountlake Terrace, Washington. Individual provider, active in the CMS NPPES registry since June 20, 2006.
## Identity
- **NPI:** 1790721736 (Entity type: Individual)
- **Enumerated:** June 20, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 38513 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 23511 56TH AVE W STE 105, Mountlake Terrace, WA 98043-5285
- **Phone:** (206) 546-2421 · **Fax:** (206) 542-9028
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Umbrella Pediatrics PC (NPI 1720772387, Mountlake Terrace, WA); Richmond Pediatric Clinic Inc. P.S. (NPI 1114962446, Shoreline, WA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 14, 2025
- **Other identifiers:** Medicaid 8253270 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1790721736) · Data from the CMS NPPES public registry.