Hayley Knostman, PA-C
Medical Physician Assistant · Yakima, WA
Hayley Knostman, PA-C is a medical physician assistant with a practice address in Yakima, Washington, and NPI 1841778578, issued on Aug 3, 2018. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hayley Knostman
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 001010968 NC
Self-reported in NPPES; status is on the state search - Practice location
- 402 S 4TH Ave, Yakima, WA 98902
- Phone
- (509) 575-4084
- Enumerated
- Aug 3, 2018
- Record last updated
- Apr 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20260330000282); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,068 in Washington → Look up another NPI →
Also registered at 402 S 4TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paulina AlcalaCase Manager/Care Coordinator1053936203
- Myra AlcarazPeer Specialist1386220036
- Jasmine AldacoSocial Worker1194479410
Verify Hayley Knostman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $264.14
4 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mindpath Care Centers North Carolina PLLCChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hayley Knostman among 1,068 medical physician assistant records in Washington
Hayley Knostman, PA-C is one of 1,068 medical physician assistant records with a practice address in Washington. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 83% of them.
- NPI issued2018 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2022 · median 2013 among the 581 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Washington
There are 1,068 medical physician assistant records in Washington.
All 1,068 in Washington → Every provider in Yakima → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- James Charles, PA-CYakima, WA 989021235153255
- Deborah Degooyer, PA-CYakima, WA 989021134156128
- Duane Frazier, PA-CYakima, WA 989021932239308
- D. Garrett, P.A.-C.Yakima, WA 989021639222730
- Eric HohmanYakima, WA 989021801810924
- Soly Houy, PAC MMSYakima, WA 989021851318851
- Gretchen Kaizer, PA, RNYakima, WA 989021538196654
- Dyann Kanzler, PAVYakima, WA 989021609962893
Common questions
What is Hayley Knostman, PA-C's NPI number?
Hayley Knostman, PA-C's National Provider Identifier (NPI) is 1841778578, issued on Aug 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Hayley Knostman, PA-C located?
The NPPES record lists a practice address at 402 S 4TH Ave, Yakima, WA, 98902. Phone: (509) 575-4084. Providers update this record themselves, so call before visiting.
How can I verify Hayley Knostman, PA-C's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.