Diane Sierens, M.D.
Neurological Surgery Physician · Rockford, IL
Diane Sierens, M.D. is a neurological surgery physician with a practice address in Rockford, Illinois, and NPI 1831127802, issued on Jun 29, 2006. Check the license (Illinois 036102651, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Diane Sierens
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 036102651 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2350 N Rockton Ave, Rockford, IL 61103
- Phone
- (815) 971-7600
- Enumerated
- Jun 29, 2006
- Record last updated
- Mar 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20040924001021); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1994
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 375 in Illinois → Look up another NPI →
Also registered at 2350 N Rockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdullah Altayeh, M.D.Pulmonary Disease Physician1831191584
- Melissa Bachman, APRNGerontology Nurse Practitioner1225709900
- Brenda Beilfuss, FNP-CFamily Nurse Practitioner1275185142
- Constance Blaisdell, NPFamily Nurse Practitioner1588135529
- William Buntain, MDPediatric Surgery Physician1700902608
- David Cheng, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1194781849
Verify Diane Sierens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036102651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 84.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $35.03
2 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 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 2 group practices
- Cook CountyChicago, IL
- Southern Illinois Medical Services NfpCarbondale, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Sierens among 375 neurological surgery physician records in Illinois
Diane Sierens, M.D. is one of 375 neurological surgery physician records with a practice address in Illinois. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 63% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1994 · median 2004 among the 199 with a school on file
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Illinois
There are 375 neurological surgery physician records in Illinois.
All 375 in Illinois → Every provider in Rockford → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Theodore Eller, M.D.Rockford, IL 611031487690533
- Nesher Asner, MDRockford, IL 611041750363651
- Martin Gryfinski, M.D.Rockford, IL 611041588779763
- Melissa Macias, MD, PHDRockford, IL 611041710044383
- Gayatri Sonti, DORockford, IL 611041295905107
- Nicholas Manno, MDRockford, IL 611011396727970
- Morris Soriano, MDRockford, IL 611071568510006
- Mashary BinnahilRockford, IL 611081881348431
Common questions
What is Diane Sierens, M.D.'s NPI number?
Diane Sierens, M.D.'s National Provider Identifier (NPI) is 1831127802, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane Sierens, M.D. located?
The NPPES record lists a practice address at 2350 N Rockton Ave, Rockford, IL, 61103. Phone: (815) 971-7600. Providers update this record themselves, so call before visiting.
How can I verify Diane Sierens, M.D.'s license?
NPPES lists Illinois license number 036102651, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Diane Sierens, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.