Quick answers
- Does Hameem U. Changezi accept Medicare assignment?
- Yes. Medicare's clinician data says Hameem U. Changezi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Hameem U. Changezi see?
- In 2024, CMS data shows 727 Original Medicare patients and 3,741 services for Hameem U. Changezi. This counts Original Medicare only and measures volume, not quality.
- What is Hameem U. Changezi's NPI number?
- 1013984269. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Hameem U. Changezi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 727 |
|---|---|
| Services billed to Medicare | 3,741 |
| Different services or procedures | 65 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, regadenoson, 0.1 mg (J2785)552 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)436 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)368 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)320 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)305 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease60%
- Arthritis54%
- Diabetes43%
- Heart failure42%
Hospitals where Hameem U. Changezi works
Medicare's Facility Affiliation Data lists Hameem U. Changezi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
- McLaren FlintFlint, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230141
- Memorial HealthcareOwosso, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230121
Practice locations
Addresses where Hameem U. Changezi is enrolled with Medicare (CMS data updated October 2, 2026).
- 2335 S Linden RdFlint, MI 48532 (810) 720‑2400
- 401 S Ballenger HwyFlint, MI 48532 (810) 342‑4545
Group practices
Medicare enrollment lists Hameem U. Changezi as a member of this group (CMS data updated October 2, 2026).
- Wilfredo Rivera, M.D., P.C.5 clinicians in the group
Specialties
Other interventional cardiologists in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Other clinicians in Wilfredo Rivera, M.D., P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013984269 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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