Karen Ferkau, P.A.
Physician Assistant · Chicago, IL
Karen Ferkau, P.A. is a physician assistant with a practice address in Chicago, Illinois, and NPI 1013082809, issued on Nov 21, 2006. Check the license (Illinois 085001123, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Ferkau
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085001123 IL
Self-reported in NPPES; status is on the state search - Practice location
- 259 E Erie St Ste 1450, Chicago, IL 60611
- Phone
- (312) 695-7746
- Enumerated
- Nov 21, 2006
- Record last updated
- Mar 31, 2022
- Fax
- (312) 694-6387
- Medicare enrollment
- Enrolled (PECOS I20081014000129); accepts Medicare assignment
- Medical or professional school
- Mid West Medical College, 1998
- Entity
- Type 1 · individual
Also registered at 259 E Erie St Ste 1450
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Boddu, MDNeurological Surgery Physician1669979027
- Gregory Bowman, APRN, CNPNurse Practitioner1346832334
- Claire Davies, PTPhysical Therapist1437200656
- Najib El Tecle, MD, MSNeurological Surgery Physician1982022471
- Khrystyna Kostryba, APRN, FNP-BC, FNP-CNurse Practitioner1760284038
- Rebecca Mladucky, PT, DPTPhysical Therapist1518635580
Verify Karen Ferkau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085001123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average physician assistant in 2024
2,086 Medicare Part D claims for 312 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 1,139 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen619 claims
- Gabapentin236 claims
- Oxycodone-Acetaminophen216 claims
- Pregabalin183 claims
- Tramadol Hcl178 claims
- Tizanidine Hcl98 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: $905.74
18 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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.
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
- Premier Pain Specialists LLCSchaumburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 1,445 in Chicago → All 4,926 in Illinois → Every provider in Chicago →
Other physician assistant records in Illinois
- Brooke Aarhus, PA-CPark Ridge, IL1760985469
- Sana Abbasi, PACarol Stream, IL1831803295
- Susan Abbinanti, PA-CElk Grove Village, IL1679647358
- Katheryn Abbott, PASchaumburg, IL1356842082
- Noor Abdelrahman, PA-CChicago, IL1851012413
- Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
- Kazuko Abe, P.A.Chicago, IL1881840783
- Greta Abel, PA-CWheaton, IL1174844096
- Derrik AbellAnna, IL1821618471
- Jeanine Aberbook, PA-CChicago, IL1518664176
Common questions
What is Karen Ferkau, P.A.'s NPI number?
Karen Ferkau, P.A.'s National Provider Identifier (NPI) is 1013082809, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ferkau, P.A. located?
The NPPES record lists a practice address at 259 E Erie St Ste 1450, Chicago, IL, 60611. Phone: (312) 695-7746. Providers update this record themselves, so call before visiting.
How can I verify Karen Ferkau, P.A.'s license?
NPPES lists Illinois license number 085001123, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Ferkau, P.A. prescribe under Medicare Part D?
In 2024, Karen Ferkau, P.A. had 2,086 Medicare Part D claims for 312 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.