Quick answers
- Which hospitals does Joseph Kappil work at?
- Medicare's official clinician data lists Joseph Kappil at 5 hospitals: Advocate Good Shepherd Hospital, Mercy Health System Corp, Mercyhealth Hospital & Physician Clinic-Crystal LA…, Northwestern Medicine Central Dupage Hospital and Northwestern Medicine McHenry. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joseph Kappil see patients?
- Medicare's clinician data lists 2 practice locations, including Crystal Lake, IL and Harvard, IL. Call before your visit to confirm the address.
- What is Joseph Kappil's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Joseph Kappil accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph Kappil accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Joseph Kappil?
- (779) 220-5500, as listed in official Medicare / NPI Registry data.
- What is Joseph Kappil's NPI number?
- 1659423622. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joseph Kappil works
Medicare's Facility Affiliation Data lists Joseph Kappil at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Shepherd HospitalBarrington, IL · Acute Care Hospital · CCN 140291
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · CCN 520066
- Mercyhealth Hospital & Physician Clinic-Crystal LA…Crystal Lake, IL · Acute Care Hospital · CCN 140308
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · CCN 140116
Practice locations
Addresses where Joseph Kappil is enrolled with Medicare (CMS data updated 2026-10-02).
- 875 S Route 31Crystal Lake, IL 60014 (779) 220‑5500
- 901 Grant StHarvard, IL 60033 (815) 943‑5431
Group practices
Medicare enrollment lists Joseph Kappil as a member of this group (CMS data updated 2026-10-02).
- Mercy Health System Corporation753 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659423622 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians