Quick answers
- Which hospitals does Alok Katyal work at?
- Medicare's official clinician data lists Alok Katyal at 3 hospitals: Alton Memorial Hospital, Christian Hospital Northeast and Decatur Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alok Katyal see patients?
- Medicare's clinician data lists 3 practice locations, including Granite City, IL, Decatur, IL and Bridgeton, MO. Call before your visit to confirm the address.
- What is Alok Katyal's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Alok Katyal accept Medicare assignment?
- Yes. Medicare's clinician data says Alok Katyal 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 Alok Katyal?
- (618) 876-8214, as listed in official Medicare / NPI Registry data.
- What is Alok Katyal's NPI number?
- 1871551887. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alok Katyal works
Medicare's Facility Affiliation Data lists Alok Katyal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alton Memorial HospitalAlton, IL · Acute Care Hospital · CCN 140002
- Christian Hospital NortheastSaint Louis, MO · Acute Care Hospital · CCN 260180
- Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · CCN 140135
Practice locations
Addresses where Alok Katyal is enrolled with Medicare (CMS data updated 2026-10-02).
- 2120 Madison Ave, Suite 101Granite City, IL 62040 (618) 876‑8214
- 2300 N Edward StDecatur, IL 62526 (217) 876‑8121
- 3550 McKelvey RdBridgeton, MO 63044 (314) 741‑0911
Group practices
Medicare enrollment lists Alok Katyal as a member of these groups (CMS data updated 2026-10-02).
- Decatur Memorial Hospital174 clinicians in the group
- St Louis Heart and Vascular PC21 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Illinois →
Other cardiologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871551887 |
| 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