DR. LIA DELEON ERNST M.D.
NPI 1154629939
Psychiatry & Neurology - Neurology in Portland, OR
About Dr. Lia Deleon Ernst M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LIA DELEON ERNST M.D. (NPI 1154629939) is an individual neurology provider in Portland, Oregon, licensed in Oregon (MD172299) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and maintains a secondary practice location in Bend.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 and accepts Medicare assignment
Dr. Lia Deleon Ernst M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Lia Ernst reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 clinicians in this Medicare group
Hillsboro, OR 97123
- Reassigned Medicare billing, Oregon enrollment
- 691 clinicians in this Medicare group
Astoria, OR 97103
- Reassigned Medicare billing, Oregon enrollment
- Also billed through NPI 1134146939 (Oregon)
- 278 clinicians in this Medicare group
Bend, OR 97701
- Reassigned Medicare billing, Oregon enrollment
- 307 clinicians in this Medicare group
Coos Bay, OR 97420
- Reassigned Medicare billing, Oregon enrollment
- 327 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ohsu Hospital And Clinics
Acute Care Hospitals · Portland, ORHillsboro Medical Center
Acute Care Hospitals · Hillsboro, ORSalem Hospital
Acute Care Hospitals · Salem, ORBay Area Hospital
Acute Care Hospitals · Coos Bay, ORGood Shepherd Medical Center
Critical Access Hospitals · Hermiston, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
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 Lia Ernst's NPI number?
The NPI number for Lia Ernst is 1154629939. It was assigned to this individual provider in the NPPES registry on March 3, 2011.
Where is Lia Ernst located?
Lia Ernst practices at 3181 SW Sam Jackson Park Rd Oregon Health And Sciences University, Portland, OR 97239. The listed phone number is (503) 494-5682.
What is Lia Ernst's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Lia Ernst enrolled in Medicare?
Yes. Lia Ernst is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lia Ernst's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lia Ernst reassigns Medicare benefits to 5 organizations: University Professional Services (Portland, OR), Tuality Medical Group LLC (Hillsboro, OR), Columbia Lutheran Charities (Astoria, OR), St. Charles Health System, Inc. (Bend, OR) and Bay Area Hospital District (Coos Bay, OR). 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 Lia Ernst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lia Ernst accept?
Health plans from Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Lia 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.
Is Lia Ernst affiliated with any hospitals?
According to CMS data, Lia Ernst is affiliated with Ohsu Hospital And Clinics, Hillsboro Medical Center, Salem Hospital, Bay Area Hospital and Good Shepherd Medical Center.
When was this NPI record last updated?
The NPPES record for Lia Ernst was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Lia Deleon Ernst, M.D. · NPI 1154629939
Neurology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since March 3, 2011.
## Identity
- **NPI:** 1154629939 (Entity type: Individual)
- **Enumerated:** March 3, 2011
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** MD172299 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, OREGON HEALTH AND SCIENCES UNIVERSITY, Portland, OR 97239-3011
- **Phone:** (503) 494-5682
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): University Professional Services (NPI 1376709535, Portland, OR); Tuality Medical Group LLC (NPI 1639690704, Hillsboro, OR); Columbia Lutheran Charities (NPI 1700809761, Astoria, OR); St. Charles Health System, Inc. (NPI 1780698696, Bend, OR); Bay Area Hospital District (NPI 1225016561, Coos Bay, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York University School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** June 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1154629939) · Data from the CMS NPPES public registry.