Katherine G. Fackler-Chapman, M.D.
Family Medicine Physician · Geneva, IL
Katherine G. Fackler-Chapman, M.D. is a family medicine physician with a practice address in Geneva, Illinois, and NPI 1528068988, issued on Jul 28, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katherine G. Fackler-Chapman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 2425 Fargo Blvd, Geneva, IL 60134
- Phone
- (630) 232-2200
- Enumerated
- Jul 28, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (630) 232-1940
- Medicare enrollment
- Enrolled (PECOS I20101012001106); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 2425 Fargo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Armbrust, DOFamily Medicine Physician1548623572
- Warren Beeh, M.D.Family Medicine Physician1326048612
- Stacey Brown, PAPhysician Assistant1699940999
- Melissa Buckley, PT, MSPT, DPTPhysical Therapist1578604757
- Peter Cladis, M.D.Family Medicine Physician1467452755
- Michael Fremgen, M.D.Family Medicine Physician1770583072
Verify Katherine G. Fackler-Chapman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% more Medicare Part D claims than the average family medicine physician in 2024
5,450 Medicare Part D claims for 749 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 63 claims were for opioids.
Most prescribed
- Atorvastatin Calcium495 claims
- Levothyroxine Sodium455 claims
- Lisinopril251 claims
- Metoprolol Succinate180 claims
- Amlodipine Besylate157 claims
- Pravastatin Sodium118 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.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Dupage Physician GroupBatavia, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine G. Fackler-Chapman among 6,215 family medicine physician records in Illinois
Katherine G. Fackler-Chapman, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2006 among the 3,714 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 family medicine physician records list a practice address in Geneva
They are 49 of the 1,023 NPPES records with a practice address in Geneva, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Geneva → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Warren Beeh, M.D.Geneva, IL 601341326048612
- Natalie Choi, MDGeneva, IL 601341154375582
- Peter Cladis, M.D.Geneva, IL 601341467452755
- Thomas Eng, D.O.Geneva, IL 601341639277551
- Christopher Fahey, M.D.Geneva, IL 601341306926415
- Michael Fremgen, M.D.Geneva, IL 601341770583072
- Thomas Hazel, M.D.Geneva, IL 601341730189176
- Viquar Khan-Mundozie, MDGeneva, IL 601341972671923
Common questions
What is Katherine G. Fackler-Chapman, M.D.'s NPI number?
Katherine G. Fackler-Chapman, M.D.'s National Provider Identifier (NPI) is 1528068988, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Katherine G. Fackler-Chapman, M.D. located?
The NPPES record lists a practice address at 2425 Fargo Blvd, Geneva, IL, 60134. Phone: (630) 232-2200. Providers update this record themselves, so call before visiting.
How can I verify Katherine G. Fackler-Chapman, M.D.'s license?
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.
How much does Katherine G. Fackler-Chapman, M.D. prescribe under Medicare Part D?
In 2024, Katherine G. Fackler-Chapman, M.D. had 5,450 Medicare Part D claims for 749 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Katherine G. Fackler-Chapman, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.