Quick answers
- Which hospitals does Michael A. Greenfield work at?
- Medicare's official clinician data lists Michael A. Greenfield at 5 hospitals: AdventHealth Shawnee Mission, AdventHealth South Overland Park, Inc, Menorah Medical Center, Saint Luke's South Hospital and University of Kansas Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael A. Greenfield see patients?
- Medicare's clinician data lists 3 practice locations, including Overland Park, KS and Merriam, KS. Call before your visit to confirm the address.
- What is Michael A. Greenfield's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Michael A. Greenfield accept Medicare assignment?
- Yes. Medicare's clinician data says Michael A. Greenfield 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 Michael A. Greenfield?
- (913) 373-2000, as listed in official Medicare / NPI Registry data.
- What is Michael A. Greenfield's NPI number?
- 1336191287. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael A. Greenfield works
Medicare's Facility Affiliation Data lists Michael A. Greenfield at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth Shawnee MissionShawnee Mission, KS · Acute Care Hospital · CCN 170104
- AdventHealth South Overland Park, IncOverland Park, KS · Acute Care Hospital · CCN 170208
- Menorah Medical CenterOverland Park, KS · Acute Care Hospital · CCN 170182
- Saint Luke's South HospitalOverland Park, KS · Acute Care Hospital · CCN 170185
- University of Kansas HospitalKansas City, KS · Acute Care Hospital · CCN 170040
Practice locations
Addresses where Michael A. Greenfield is enrolled with Medicare (CMS data updated 2026-10-02).
- 7820 W 165th St, Ahmg Ob Hospitalists at South Overland ParkOverland Park, KS 66223 (913) 373‑2000
- 9100 W 74th StMerriam, KS 66204
- 9301 W 74th StMerriam, KS 66204 (913) 632‑9100
Group practices
Medicare enrollment lists Michael A. Greenfield as a member of this group (CMS data updated 2026-10-02).
- Shawnee Mission Medical Center Inc286 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Overland Park
Clinicians with the same Medicare primary specialty in Overland Park, KS — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Kansas City University Of Physicians And Surgeons |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336191287 |
| 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