Quick answers
- Does Vicken H. Karageozian accept Medicare assignment?
- Yes. Medicare's clinician data says Vicken H. Karageozian 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 Vicken H. Karageozian see?
- In 2024, CMS data shows 102 Original Medicare patients and 184 services for Vicken H. Karageozian. This counts Original Medicare only and measures volume, not quality.
- What is Vicken H. Karageozian's NPI number?
- 1659337178. 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 Vicken H. Karageozian, 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 | 102 |
|---|---|
| Services billed to Medicare | 184 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)32 services
- Established patient problem focused exam of visual system (92012)23 services
- Exam of visual field with extended testing (92083)19 services
- Imaging of optic nerve (92133)18 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)18 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 cholesterol75%
- High blood pressure68%
- Arthritis41%
- Diabetes31%
- Ischemic heart disease22%
- Anxiety22%
Practice locations
Addresses where Vicken H. Karageozian is enrolled with Medicare (CMS data updated October 2, 2026).
- 3301 S Harbor Blvd, Suite 104Santa Ana, CA 92704 (949) 489‑2218
- 653 Camino De Los MaresSan Clemente, CA 92673 (949) 489‑2218
Group practices
Medicare enrollment lists Vicken H. Karageozian as a member of this group (CMS data updated October 2, 2026).
- Ramin Tayani MD Inc16 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Santa Ana
Clinicians with the same Medicare primary specialty in Santa Ana, CA — not a recommendation.
Other clinicians in Ramin Tayani MD Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659337178 |
| 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