Hayley Knostman, PA-C
NPI 1841778578 · Medical Physician Assistant · Yakima, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hayley Knostman, PA-C is a Medical Physician Assistant provider in Yakima, WA (NPI 1841778578).
Provider details
- NPI number
- 1841778578
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
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
7 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$264 across 4 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
Additional practice locations (1)
- 401 Providence Rd Ste 100Chapel Hill, NC 27514-2203Phone: (855) 501-1004
Registry dates
- Enumerated
- 2018-08-03
- Last updated
- 2026-04-08
- Certified
- 2026-04-08
Frequently asked questions
- What is Hayley Knostman's NPI number?
- Hayley Knostman's National Provider Identifier (NPI) is 1841778578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hayley Knostman's specialty?
- Hayley Knostman is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hayley Knostman located?
- Hayley Knostman's practice location on file with NPPES is 402 S 4th Ave, Yakima, WA 98902-3546.
- What is Hayley Knostman's phone number?
- The practice phone number listed in the NPPES registry for Hayley Knostman is (509) 575-4084.
- Does Hayley Knostman accept Medicare?
- Hayley Knostman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hayley Knostman's NPI active?
- Yes — Hayley Knostman's NPI (1841778578) is active in the NPPES registry as of the last update on 2026-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.