Quick answers
- Does Mehrdad M. Amirhamzeh accept Medicare assignment?
- Yes. Medicare's clinician data says Mehrdad M. Amirhamzeh 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 Mehrdad M. Amirhamzeh see?
- In 2024, CMS data shows 298 Original Medicare patients and 1,535 services for Mehrdad M. Amirhamzeh. This counts Original Medicare only and measures volume, not quality.
- What is Mehrdad M. Amirhamzeh's NPI number?
- 1174523096. 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 Mehrdad M. Amirhamzeh, 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 | 298 |
|---|---|
| Services billed to Medicare | 1,535 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)390 services
- Ultrasound study of arm and leg arteries (93922)204 services
- Ultrasound of leg arteries or artery grafts (93925)192 services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)171 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)162 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%
- Arthritis48%
- Diabetes45%
- Ischemic heart disease37%
- Chronic kidney disease32%
Hospitals where Mehrdad M. Amirhamzeh works
Medicare's Facility Affiliation Data lists Mehrdad M. Amirhamzeh 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.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
Practice locations
Addresses where Mehrdad M. Amirhamzeh is enrolled with Medicare (CMS data updated October 2, 2026).
- 1610 W Yosemite Ave, Suite 3Manteca, CA 95337 (209) 665‑4412
- 177 W El Portal Dr, Suite BMerced, CA 95348 (209) 349‑8847
Specialties
- Cardiac Surgeryprimary
- General Surgeryalso
Other cardiac surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174523096 |
| 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