Quick answers
- Does Ahmad Ghanizadeh accept Medicare assignment?
- Yes. Medicare's clinician data says Ahmad Ghanizadeh 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 Ahmad Ghanizadeh see?
- In 2024, CMS data shows 12 Original Medicare patients and 48 services for Ahmad Ghanizadeh. This counts Original Medicare only and measures volume, not quality.
- What is Ahmad Ghanizadeh's NPI number?
- 1548827967. 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 Ahmad Ghanizadeh, 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 | 12 |
|---|---|
| Services billed to Medicare | 48 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 53 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)38 services
Practice locations
Addresses where Ahmad Ghanizadeh is enrolled with Medicare (CMS data updated October 2, 2026).
- 2100 Napa Vallejo HwyNapa, CA 94558 (916) 651‑8811
Group practices
Medicare enrollment lists Ahmad Ghanizadeh as a member of this group (CMS data updated October 2, 2026).
- Department of State Hospitals270 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Napa
Clinicians with the same Medicare primary specialty in Napa, CA — not a recommendation.
Other clinicians in Department of State Hospitals
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548827967 |
| 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
- 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