Ken J. Schaffer, APN
Acute Care Nurse Practitioner · Park Ridge, IL
Ken J. Schaffer, APN is an acute care nurse practitioner with a practice address in Park Ridge, Illinois, and NPI 1598203523, issued on Feb 10, 2017. Check the license (Illinois 209015091, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ken J. Schaffer
- Credential
- APN
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 209015091 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1775 Dempster St, Park Ridge, IL 60068
- Phone
- (847) 723-2210
- Enumerated
- Feb 10, 2017
- Record last updated
- May 2, 2022
- Fax
- (847) 696-3394
- Medicare enrollment
- Enrolled (PECOS I20180815001594); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 639 in Illinois → Look up another NPI →
Also registered at 1775 Dempster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ken J. Schaffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209015091Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
24 Medicare Part D claims for 12 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Advocate Health And Hospitals CorporationPark Ridge, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ken J. Schaffer among 639 acute care nurse practitioner records in Illinois
Ken J. Schaffer, APN is one of 639 acute care nurse practitioner records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 47% of them.
- NPI issued2017 · 47% of these records are older, 46% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2016 · median 2017 among the 434 with a school on file
- Record last updated2022 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Illinois
There are 639 acute care nurse practitioner records in Illinois.
All 639 in Illinois → Every provider in Park Ridge → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Annemarie Barr, NP, APRNPark Ridge, IL 600681689231144
- Joanna Delgado, APRNPark Ridge, IL 600681871139766
- Jordan Fischer, NPPark Ridge, IL 600681659224202
- Mary-Jennelle GuevaraPark Ridge, IL 600681225397268
- Amanda Gusswein, FNP-BCPark Ridge, IL 600681336678929
- Rosemary O'Toole, ACNPPark Ridge, IL 600681205108685
- Yuriy Olshannikov, DNP, BSN, APRN, RNPark Ridge, IL 600681275391922
- Sandra Orlando, AGACNP-BCPark Ridge, IL 600681215651021
Common questions
What is Ken J. Schaffer, APN's NPI number?
Ken J. Schaffer, APN's National Provider Identifier (NPI) is 1598203523, issued on Feb 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ken J. Schaffer, APN located?
The NPPES record lists a practice address at 1775 Dempster St, Park Ridge, IL, 60068. Phone: (847) 723-2210. Providers update this record themselves, so call before visiting.
How can I verify Ken J. Schaffer, APN's license?
NPPES lists Illinois license number 209015091, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Ken J. Schaffer, APN prescribe under Medicare Part D?
In 2024, Ken J. Schaffer, APN had 24 Medicare Part D claims for 12 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.