Quick answers
- Which hospitals does Gregory A. Kaczmarczyk work at?
- Medicare's official clinician data lists Gregory A. Kaczmarczyk at 1 hospital: The Medical Center of Aurora & South Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory A. Kaczmarczyk see patients?
- Medicare's clinician data lists 3 practice locations, including Aurora, CO and Colorado Springs, CO. Call before your visit to confirm the address.
- What is Gregory A. Kaczmarczyk's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Gregory A. Kaczmarczyk accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory A. Kaczmarczyk 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 Gregory A. Kaczmarczyk offer telehealth?
- Medicare's clinician data says Gregory A. Kaczmarczyk offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory A. Kaczmarczyk?
- (702) 480-2550, as listed in official Medicare / NPI Registry data.
- What is Gregory A. Kaczmarczyk's NPI number?
- 1790885820. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory A. Kaczmarczyk works
Medicare's Facility Affiliation Data lists Gregory A. Kaczmarczyk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- The Medical Center of Aurora & South HospitalAurora, CO · Acute Care Hospital · CCN 060100
Practice locations
Addresses where Gregory A. Kaczmarczyk is enrolled with Medicare (CMS data updated 2026-10-02).
- 1421 S Potomac St, Suite 320Aurora, CO 80012 (702) 480‑2550
- 1625 Medical Ctr Pt, Suite 290Colorado Springs, CO 80907 (719) 635‑5148
- 2 S Cascade Ave, Suite 140Colorado Springs, CO 80903 (719) 538‑2900
Group practices
Medicare enrollment lists Gregory A. Kaczmarczyk as a member of this group (CMS data updated 2026-10-02).
- Optumcare Colorado Medical Group LLC182 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Aurora
Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1790885820 |
| 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