NPPES file of Aug 9, 2026

Sienna Kotch, PA-C

Physician Assistant · Elmhurst, IL

Sienna Kotch, PA-C is a physician assistant with a practice address in Elmhurst, Illinois, and NPI 1275201345, issued on Sep 2, 2021. Check the license (Illinois 085-008534, 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
1275201345
Name
Sienna Kotch
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
085-008534 IL
5601012891 MI
Self-reported in NPPES; status is on the state search
Practice location
133 E Brush Hill RD Ste 100, Elmhurst, IL 60126
Phone
(734) 593-5700
Enumerated
Sep 2, 2021
Record last updated
Aug 4, 2026
Fax
(734) 426-9024
Medicare enrollment
Enrolled (PECOS I20211007002167); 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 133 E Brush Hill RD Ste 100

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

  1. Danielle BrandonisioNurse Practitioner1457877508
  2. Adelina Hung, MDGastroenterology Physician1326300120
  3. Ashish Patel, M.D.Orthopaedic Surgery Physician1992077887
  4. Andrea San Luis, PTPhysical Therapist1558657767
  5. Christina Sarantopoulos, D.P.M.Foot & Ankle Surgery Podiatrist1174535249
  6. Ellen Voronov, M.D.Physical Medicine & Rehabilitation Physician1730170523

Verify Sienna Kotch 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 085-008534
    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

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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36% fewer Medicare Part D claims than the average physician assistant in 2024

531 Medicare Part D claims for 242 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 169 claims were for opioids.

  1. Sienna Kotch531
  2. Specialty average830

Most prescribed

  1. Cyclobenzaprine Hcl127 claims
  2. Oxycodone-Acetaminophen83 claims
  3. Hydrocodone-Acetaminophen58 claims
  4. Meloxicam54 claims
  5. Gabapentin40 claims
  6. Methocarbamol29 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: $1,022.59

31 payments; by number, the most common kind was food and beverage; the largest payer was Globus 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. Sienna Kotch$1,022.59
  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. Dupage Medical Group LtdWheaton, IL

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

Sienna Kotch among 4,926 physician assistant records in Illinois

Sienna Kotch, PA-C is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.

  • NPI issued2021 · 66% of these records are older, 29% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2019 among the 3,407 with a school on file
  • Record last updated2026 · 35% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 physician assistant records list a practice address in Elmhurst

They are 21 of the 1,540 NPPES records with a practice address in Elmhurst, and 4,926 physician assistant records in Illinois.

The 8 physician assistant records with the nearest ZIP codes

  1. Aysha Ahmed, PA-CElmhurst, IL 601261053880138
  2. David Avina, P.A.Elmhurst, IL 601261730569807
  3. Joseph Baez, PA- CElmhurst, IL 601261730520529
  4. Meredith BrackettElmhurst, IL 601261407326382
  5. Abbey Graves, PA-CElmhurst, IL 601261700489093
  6. Nabihah Khan, PA-CElmhurst, IL 601261144793308
  7. Kendall Kilander, PA-CElmhurst, IL 601261013552595
  8. Yunah Lee, PA-CElmhurst, IL 601261396382933

Common questions

What is Sienna Kotch, PA-C's NPI number?

Sienna Kotch, PA-C's National Provider Identifier (NPI) is 1275201345, issued on Sep 2, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sienna Kotch, PA-C located?

The NPPES record lists a practice address at 133 E Brush Hill RD Ste 100, Elmhurst, IL, 60126. Phone: (734) 593-5700. Providers update this record themselves, so call before visiting.

How can I verify Sienna Kotch, PA-C's license?

NPPES lists Illinois license number 085-008534, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Sienna Kotch, PA-C prescribe under Medicare Part D?

In 2024, Sienna Kotch, PA-C had 531 Medicare Part D claims for 242 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.