Quick answers
- Where does Augusto Guevara see patients?
- Medicare's clinician data lists 2 practice locations, including Oak Park, IL and Chicago, IL. Call before your visit to confirm the address.
- What is Augusto Guevara's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
- Does Augusto Guevara accept Medicare assignment?
- Yes. Medicare's clinician data says Augusto Guevara 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 Augusto Guevara?
- (773) 253-3933, as listed in official Medicare / NPI Registry data.
- What is Augusto Guevara's NPI number?
- 1962557686. 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 Augusto Guevara is enrolled with Medicare (CMS data updated 2026-10-02).
- 18 Chicago AveOak Park, IL 60302 (773) 253‑3933
- 4848 W Irving Park RdChicago, IL 60641 (855) 625‑7878
Group practices
Medicare enrollment lists Augusto Guevara as a member of this group (CMS data updated 2026-10-02).
- Oak Street Health Physicians Group PC229 clinicians in the group
Specialties
- Internal Medicineprimary
- Geriatric Medicinealso
Other internal medicine doctors in Oak Park
Clinicians with the same Medicare primary specialty in Oak Park, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962557686 |
| 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