Quick answers
- Where does Leonard Spishakoff see patients?
- Medicare's clinician data lists 5 practice locations, including Joliet, IL, Bloomingdale, IL and Hinsdale, IL. Call before your visit to confirm the address.
- What is Leonard Spishakoff's specialty?
- Medicare lists Family Practice as the primary specialty, and also Addiction Medicine.
- Does Leonard Spishakoff accept Medicare assignment?
- Yes. Medicare's clinician data says Leonard Spishakoff 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.
- Does Leonard Spishakoff offer telehealth?
- Medicare's clinician data says Leonard Spishakoff offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leonard Spishakoff?
- (815) 725-2121, as listed in official Medicare / NPI Registry data.
- What is Leonard Spishakoff's NPI number?
- 1275597098. 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 Leonard Spishakoff is enrolled with Medicare (CMS data updated 2026-10-02).
- 2100 Glenwood AveJoliet, IL 60435 (815) 725‑2121
- 30 Stratford DrBloomingdale, IL 60108 (630) 893‑2210
- 40 S Clay StHinsdale, IL 60521
- 430 Pennsylvania AveGlen Ellyn, IL 60137 (630) 469‑9200
- 430 Warrenville Rd, Suite 210Lisle, IL 60532 (630) 432‑6180
Group practices
Medicare enrollment lists Leonard Spishakoff as a member of this group (CMS data updated 2026-10-02).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
- Family Practiceprimary
- Addiction Medicinealso
Other family doctors in Joliet
Clinicians with the same Medicare primary specialty in Joliet, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1275597098 |
| 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