Nathan Duane Warner, PA
Physician Assistant · Chicago, IL
Nathan Duane Warner, PA is a physician assistant with a practice address in Chicago, Illinois, and NPI 1154980001, issued on Jun 12, 2019. Check the license (Illinois 085007239, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathan Duane Warner
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085007239 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2320 E 93RD St, Chicago, IL 60617
- Phone
- (641) 799-8991
- Enumerated
- Jun 12, 2019
- Record last updated
- Jan 4, 2022
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 2320 E 93RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan Duane Warner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085007239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average physician assistant in 2024
140 Medicare Part D claims for 119 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass17 claims
- Cephalexin17 claims
- Hydrocodone-Acetaminophen11 claims
- Ofloxacin11 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.
Nathan Duane Warner among 4,926 physician assistant records in Illinois
Nathan Duane Warner, PA 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 2019, is newer than 53% of them.
- NPI issued2019 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2022 · 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).
1,445 physician assistant records list a practice address in Chicago
They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Chicago → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jennifer Dhillon, PA-CChicago, IL 606171659047058
- Bailey Filip, PA-CChicago, IL 606171376932400
- Erin Gorski, PA-CChicago, IL 606171932755105
- Richard Kay, PAChicago, IL 606171063497063
- Bridget Leclair, PA-CChicago, IL 606171508154774
- Virginia Lennon, PA-CChicago, IL 606171568136141
- Brendan McElligott, PAChicago, IL 606171710361423
- Megan McGuigan, P.A.Chicago, IL 606171518278571
Common questions
What is Nathan Duane Warner, PA's NPI number?
Nathan Duane Warner, PA's National Provider Identifier (NPI) is 1154980001, issued on Jun 12, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Duane Warner, PA located?
The NPPES record lists a practice address at 2320 E 93RD St, Chicago, IL, 60617. Phone: (641) 799-8991. Providers update this record themselves, so call before visiting.
How can I verify Nathan Duane Warner, PA's license?
NPPES lists Illinois license number 085007239, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Nathan Duane Warner, PA prescribe under Medicare Part D?
In 2024, Nathan Duane Warner, PA had 140 Medicare Part D claims for 119 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.