Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Katherine G. Fackler Chapman, MD

Works at hospitals in Winfield, IL · Geneva, IL · Dekalb, IL … · Illinois

Summary

Dr. Katherine G. Fackler Chapman, MD is a family doctor at 1049 E Wilson St, 160b, Batavia, IL 60510. Phone: (630) 232-2776. Accepts Medicare assignment. In 2024, Katherine G. Fackler Chapman had 422 Original Medicare patients and 1,353 services. NPI 1528068988. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine G. Fackler Chapman, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Katherine G. Fackler Chapman accept Medicare assignment?
Yes. Medicare's clinician data says Katherine G. Fackler Chapman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Katherine G. Fackler Chapman see?
In 2024, CMS data shows 422 Original Medicare patients and 1,353 services for Katherine G. Fackler Chapman. This counts Original Medicare only and measures volume, not quality.
What is Katherine G. Fackler Chapman's NPI number?
1528068988. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Katherine G. Fackler Chapman, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients422
Services billed to Medicare1,353
Different services or procedures40
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)281 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)265 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)219 services
  4. Administration of influenza virus vaccine (G0008)76 services
  5. Influenza vaccine split virus, preservative free (90662)73 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure61%
  • Arthritis32%
  • Osteoporosis17%
  • Anxiety15%
  • Diabetes14%

Hospitals where Katherine G. Fackler Chapman works

Medicare's Facility Affiliation Data lists Katherine G. Fackler Chapman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Katherine G. Fackler Chapman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Katherine G. Fackler Chapman as a member of this group (CMS data updated October 2, 2026).

  • Central Dupage Physician Group1,080 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Batavia

Clinicians with the same Medicare primary specialty in Batavia, IL — not a recommendation.

All family doctors in Batavia →

Other clinicians in Central Dupage Physician Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolOhio State University College Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1528068988
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians