Cassidy Ermshar, PA-C
NPI 1679291645 · Medical Physician Assistant · Olympia, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassidy Ermshar, PA-C is a Medical Physician Assistant provider in Olympia, WA (NPI 1679291645).
Provider details
- NPI number
- 1679291645
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA61506495 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$46 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-08-16
- Last updated
- 2024-11-20
- Certified
- 2024-11-20
Frequently asked questions
- What is Cassidy Ermshar's NPI number?
- Cassidy Ermshar's National Provider Identifier (NPI) is 1679291645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassidy Ermshar's specialty?
- Cassidy Ermshar is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassidy Ermshar located?
- Cassidy Ermshar's practice location on file with NPPES is 2612 Yelm Hwy Se, Olympia, WA 98501-4826.
- What is Cassidy Ermshar's phone number?
- The practice phone number listed in the NPPES registry for Cassidy Ermshar is (360) 507-8146.
- Does Cassidy Ermshar accept Medicare?
- Cassidy Ermshar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassidy Ermshar's NPI active?
- Yes — Cassidy Ermshar's NPI (1679291645) is active in the NPPES registry as of the last update on 2024-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.