Erin Elizabeth Kobiljak, PA-C
Physician Assistant · Bartlett, IL
Erin Elizabeth Kobiljak, PA-C is a physician assistant with a practice address in Bartlett, Illinois, and NPI 1922288257, issued on Nov 3, 2007. Check the license (Illinois 085.003086, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Elizabeth Kobiljak
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085.003086 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1041 W Stearns RD, Bartlett, IL 60103
- Phone
- (630) 716-7500
- Enumerated
- Nov 3, 2007
- Record last updated
- Mar 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20071130000424); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 1041 W Stearns RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erin Elizabeth Kobiljak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085.003086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average physician assistant in 2024
1,424 Medicare Part D claims for 407 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 45 claims were for opioids.
Most prescribed
- Levothyroxine Sodium80 claims
- Doxycycline Hyclate78 claims
- Atorvastatin Calcium70 claims
- Methylprednisolone63 claims
- Amoxicillin-Clavulanate Potass54 claims
- Prednisone53 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.
Bills Medicare through one group practice
- Bonaventure Medical Foundation LLCBartlett, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Elizabeth Kobiljak among 4,926 physician assistant records in Illinois
Erin Elizabeth Kobiljak, 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 2007, is newer than 12% of them.
- NPI issued2007 · 12% of these records are older, 83% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2007 · median 2019 among the 3,407 with a school on file
- Record last updated2021 · 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).
9 physician assistant records list a practice address in Bartlett
They are 9 of the 384 NPPES records with a practice address in Bartlett, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Bartlett → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Anthony Bartkowiak, PAC DCBartlett, IL 601031235296138
- Scott Grosh, PABartlett, IL 601031861225039
- Elizabeth Hauer, PA-CBartlett, IL 601031366062788
- Hannah HutchisonBartlett, IL 601031205661139
- Joseph LangeBartlett, IL 601031639878671
- Michael McClellanBartlett, IL 601031740760149
- Madison Steele, PA-CBartlett, IL 601031760127898
- Keith Welker, PA-CBartlett, IL 601031013345354
Common questions
What is Erin Elizabeth Kobiljak, PA-C's NPI number?
Erin Elizabeth Kobiljak, PA-C's National Provider Identifier (NPI) is 1922288257, issued on Nov 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Erin Elizabeth Kobiljak, PA-C located?
The NPPES record lists a practice address at 1041 W Stearns RD, Bartlett, IL, 60103. Phone: (630) 716-7500. Providers update this record themselves, so call before visiting.
How can I verify Erin Elizabeth Kobiljak, PA-C's license?
NPPES lists Illinois license number 085.003086, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Elizabeth Kobiljak, PA-C prescribe under Medicare Part D?
In 2024, Erin Elizabeth Kobiljak, PA-C had 1,424 Medicare Part D claims for 407 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.