Susan A. Korf, N.P.
Nurse Practitioner · Rockford, IL
Susan A. Korf, N.P. is a nurse practitioner with a practice address in Rockford, Illinois, and NPI 1427295807, issued on Jan 7, 2009. Check the license (Illinois 209007452, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Susan A. Korf
- Credential
- N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 209007452 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1401 E State St, Rockford, IL 61104
- Phone
- (414) 290-6720
- Enumerated
- Jan 7, 2009
- Record last updated
- Jan 27, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (414) 290-6755
- Medicare enrollment
- Enrolled (PECOS I20090313000274); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →
Also registered at 1401 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan A. Korf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209007452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average nurse practitioner in 2024
467 Medicare Part D claims for 346 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 13 claims were for opioids.
Most prescribed
- Cephalexin88 claims
- Amoxicillin-Clavulanate Potass45 claims
- Prednisone43 claims
- Doxycycline Hyclate36 claims
- Azithromycin26 claims
- Albuterol Sulfate Hfa24 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: $119.43
2 payments; by number, the most common kind was food and beverage; the largest payer was Grifols USA, LLC. The 38,884 providers of this specialty with any payment received $791.64 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
- Rockford Emergency Physicians, LLCRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan A. Korf among 4,892 nurse practitioner records in Illinois
Susan A. Korf, N.P. is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 17% of them.
- NPI issued2009 · 17% of these records are older, 82% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2008 · median 2018 among the 3,389 with a school on file
- Record last updated2009 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
129 nurse practitioner records list a practice address in Rockford
They are 129 of the 3,893 NPPES records with a practice address in Rockford, and 4,892 nurse practitioner records in Illinois.
All 4,892 in Illinois → Every provider in Rockford → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Rebecca Behling, FNPRockford, IL 611041508060518
- Timothy Deming, N.P.Rockford, IL 611041023397064
- Heather Frey, N.P.Rockford, IL 611041033230016
- Michelle Fuller, APNRockford, IL 611041982086237
- Andrea Henrey, APNRockford, IL 611041750736039
- Danielle Jordal, APNRockford, IL 611041639429855
- Cynthia Kelling, APNRockford, IL 611041689027666
- Mary Marshall, APNRockford, IL 611041770030801
Common questions
What is Susan A. Korf, N.P.'s NPI number?
Susan A. Korf, N.P.'s National Provider Identifier (NPI) is 1427295807, issued on Jan 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Susan A. Korf, N.P. located?
The NPPES record lists a practice address at 1401 E State St, Rockford, IL, 61104. Phone: (414) 290-6720. Providers update this record themselves, so call before visiting.
How can I verify Susan A. Korf, N.P.'s license?
NPPES lists Illinois license number 209007452, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Susan A. Korf, N.P. prescribe under Medicare Part D?
In 2024, Susan A. Korf, N.P. had 467 Medicare Part D claims for 346 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.