Quick answers
- Where does John W. Cox see patients?
- Medicare's clinician data lists 2 practice locations, including Elgin, IL and Crystal Lake, IL. Call before your visit to confirm the address.
- What is John W. Cox's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does John W. Cox accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Cox 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 John W. Cox?
- (847) 608-6647, as listed in official Medicare / NPI Registry data.
- What is John W. Cox's NPI number?
- 1285838219. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John W. Cox is enrolled with Medicare (CMS data updated 2026-10-02).
- 1750 N Randall Rd, Suite 120Elgin, IL 60123 (847) 608‑6647
- 820 E Terra Cotta Ave, Suite 125Crystal Lake, IL 60014 (815) 455‑7143
Group practices
Medicare enrollment lists John W. Cox as a member of this group (CMS data updated 2026-10-02).
- Suleman J. Bangash D.O.S.C.17 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Elgin
Clinicians with the same Medicare primary specialty in Elgin, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana Medical College, School Of Medicine Of Purdue University |
| Graduation year | 1967 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285838219 |
| 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
- 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