NPPES file of Aug 9, 2026

Ashley N. Korchyk, PA-C

Physician Assistant · Marshfield, WI

Ashley N. Korchyk, PA-C is a physician assistant with a practice address in Marshfield, Wisconsin, and NPI 1649780701, issued on Oct 3, 2017. Check the license (Wisconsin 7529, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649780701
Name
Ashley N. Korchyk
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
7529 WI
Self-reported in NPPES; status is on the state search
Practice location
1000 N Oak Avenue, Marshfield, WI 54449
Phone
(715) 387-5511
Enumerated
Oct 3, 2017
Record last updated
Oct 27, 2025
Medicare enrollment
Enrolled (PECOS I20231030002483); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1000 N Oak Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Katie Beck, SLPSpeech-Language Pathologist1790274900
  2. Matthew Biller, MDPsychiatry Physician1336600360
  3. Amy Blake, M.D.Pediatrics Physician1871737668
  4. Mitchell Felder, MDNeurology Physician1891767042
  5. Michael Katsnelson, M.D.Neurology Physician1013170067
  6. Chris Liakonis, DOThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1437117512

Verify Ashley N. Korchyk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 7529
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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56% fewer Medicare Part D claims than the average physician assistant in 2024

368 Medicare Part D claims for 166 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 26 claims were for opioids.

  1. Ashley Korchyk368
  2. Specialty average830

Most prescribed

  1. Tamsulosin Hcl85 claims
  2. Finasteride54 claims
  3. Cephalexin30 claims
  4. Oxybutynin Chloride Er27 claims
  5. Levofloxacin24 claims
  6. Myrbetriq18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $82.80

3 payments; by number, the most common kind was food and beverage; the largest payer was 180 Medical, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ashley Korchyk$82.80
  2. Specialty average$841.65

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

  1. Mchs Hospitals IncMarshfield, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ashley N. Korchyk among 3,475 physician assistant records in Wisconsin

Ashley N. Korchyk, PA-C is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 56% of them.

  • NPI issued2017 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2017 · median 2016 among the 2,491 with a school on file
  • Record last updated2025 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 physician assistant records list a practice address in Marshfield

They are 56 of the 1,360 NPPES records with a practice address in Marshfield, and 3,475 physician assistant records in Wisconsin.

The 8 physician assistant records with the nearest ZIP codes

  1. James Beathard, PAMarshfield, WI 544491154432797
  2. Gregory Geissinger, PACMarshfield, WI 544491699882969
  3. Roger Lovelace, PA-CMarshfield, WI 544491770509598
  4. David Lustig, PAMarshfield, WI 544491215046800
  5. Richard Nesbitt, PACMarshfield, WI 544491700993078
  6. Hazel Neufeld, PA CMarshfield, WI 544491811004187
  7. Dennis Peterson, PACMarshfield, WI 544491205948478
  8. Robert Rennells, PAMarshfield, WI 544491760597231

Common questions

What is Ashley N. Korchyk, PA-C's NPI number?

Ashley N. Korchyk, PA-C's National Provider Identifier (NPI) is 1649780701, issued on Oct 3, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Ashley N. Korchyk, PA-C located?

The NPPES record lists a practice address at 1000 N Oak Avenue, Marshfield, WI, 54449. Phone: (715) 387-5511. Providers update this record themselves, so call before visiting.

How can I verify Ashley N. Korchyk, PA-C's license?

NPPES lists Wisconsin license number 7529, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Ashley N. Korchyk, PA-C prescribe under Medicare Part D?

In 2024, Ashley N. Korchyk, PA-C had 368 Medicare Part D claims for 166 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.