Quick answers
- Which hospitals does Gregory Ogunnowo work at?
- Medicare's official clinician data lists Gregory Ogunnowo at 2 hospitals: Allina United Hospital and St Croix Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Ogunnowo see patients?
- Medicare's clinician data lists 4 practice locations, including River Falls, WI, Saint Paul, MN and St Paul, MN. Call before your visit to confirm the address.
- What is Gregory Ogunnowo's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Gregory Ogunnowo accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Ogunnowo 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 Gregory Ogunnowo?
- (715) 307-6600, as listed in official Medicare / NPI Registry data.
- What is Gregory Ogunnowo's NPI number?
- 1881044972. 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 Ogunnowo works
Medicare's Facility Affiliation Data lists Gregory Ogunnowo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Allina United HospitalSaint Paul, MN · Acute Care Hospital · CCN 240038
- St Croix Regional Medical CenterSaint Croix Falls, WI · Critical Access Hospital · CCN 521337
Practice locations
Addresses where Gregory Ogunnowo is enrolled with Medicare (CMS data updated 2026-10-02).
- 1617 E Division StRiver Falls, WI 54022 (715) 307‑6600
- 1629 E Division StRiver Falls, WI 54022 (715) 307‑6000
- 225 Smith Ave N, Suite 100Saint Paul, MN 55102 (651) 292‑0007
- 225 Smith Ave N, Suite 400St Paul, MN 55102 (651) 241‑7176
Group practices
Medicare enrollment lists Gregory Ogunnowo as a member of this group (CMS data updated 2026-10-02).
- Allina Health System3,842 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Wisconsin →
Other cardiologists in River Falls
Clinicians with the same Medicare primary specialty in River Falls, WI — not a recommendation.
Clinician information
| Medical school | University Of South Carolina School Of Medicine |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881044972 |
| 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