NPPES file of Aug 9, 2026

Chester Nay, PA-C

Physician Assistant · Vandalia, IL

Chester Nay, PA-C is a physician assistant with a practice address in Vandalia, Illinois, and NPI 1427418607, issued on Mar 1, 2016. Check the license (Illinois 085005770, as entered in NPPES) with the Illinois 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
1427418607
Name
Chester Nay
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
085005770 IL
Self-reported in NPPES; status is on the state search
Practice location
1510 Sunset Dr, Vandalia, IL 62471
Phone
(618) 283-3144
Enumerated
Mar 1, 2016
Record last updated
Mar 1, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(618) 283-3194
Medicare enrollment
Enrolled (PECOS I20160606000253); accepts Medicare assignment
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 1510 Sunset Dr

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

  1. Carl Castle, DOFamily Medicine Physician1255306767
  2. Karen Hartzel, NPMidwife1174625149
  3. Lucinda Spencer, APRN, FNP-CFamily Nurse Practitioner1912499971
  4. Paul Williams, MSN, FNP, NP-CFamily Nurse Practitioner1982964508

Verify Chester Nay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085005770
    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 Illinois license search

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4.8 times the Medicare Part D claims of the average physician assistant in 2024

3,991 Medicare Part D claims for 182 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 72 claims were for opioids.

  1. Chester Nay3,991
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium192 claims
  2. Albuterol Sulfate Hfa136 claims
  3. Levothyroxine Sodium132 claims
  4. Lisinopril129 claims
  5. Lisinopril-Hydrochlorothiazide98 claims
  6. Gabapentin88 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: $24.22

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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. Chester Nay$24.22
  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. Southern Illinois Health Care Foundation IncVandalia, IL

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

2 physician assistant records list a practice address in Vandalia

They are 2 of the 101 NPPES records with a practice address in Vandalia, and 4,926 physician assistant records in Illinois.

Other physician assistant records in Illinois

  1. Brooke Aarhus, PA-CPark Ridge, IL1760985469
  2. Sana Abbasi, PACarol Stream, IL1831803295
  3. Susan Abbinanti, PA-CElk Grove Village, IL1679647358
  4. Katheryn Abbott, PASchaumburg, IL1356842082
  5. Noor Abdelrahman, PA-CChicago, IL1851012413
  6. Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
  7. Kazuko Abe, P.A.Chicago, IL1881840783
  8. Greta Abel, PA-CWheaton, IL1174844096
  9. Derrik AbellAnna, IL1821618471
  10. Jeanine Aberbook, PA-CChicago, IL1518664176

Common questions

What is Chester Nay, PA-C's NPI number?

Chester Nay, PA-C's National Provider Identifier (NPI) is 1427418607, issued on Mar 1, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Chester Nay, PA-C located?

The NPPES record lists a practice address at 1510 Sunset Dr, Vandalia, IL, 62471. Phone: (618) 283-3144. Providers update this record themselves, so call before visiting.

How can I verify Chester Nay, PA-C's license?

NPPES lists Illinois license number 085005770, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Chester Nay, PA-C prescribe under Medicare Part D?

In 2024, Chester Nay, PA-C had 3,991 Medicare Part D claims for 182 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.