Aaron Nagiel, M.D., PH.D.
Ophthalmology · Ventura, CA
At a glance
300 Hillmont Ave., Building 340 Ste 302, Ventura, CA 93003
NPPES record updated Oct 15, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
300 Hillmont Ave., Building 340 Ste 302Ventura, CA 93003
Additional reported practice locations
4650 W Sunset Blvd # 88Los Angeles, CA 900276062
Phone: 3236602450
Fax: 3233617993
Education & affiliations
- Medical / professional school
- Js Weill Medical College, Cornell University
- Graduation year
- 2011
- CMS specialties
- Ophthalmology
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Grant | $90,000.00 |
| Food and beverage | $508.89 |
Reporting companies
| Company | Amount |
|---|---|
| ALCON RESEARCH LLC | $90,000.00 |
| CARL ZEISS MEDITEC USA, INC. | $197.04 |
| BAUSCH & LOMB AMERICAS INC. | $128.31 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $92.33 |
| ALCON VISION LLC | $68.99 |
| ASTELLAS PHARMA US INC | $22.22 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Ophthalmology
- Taxonomy code
- 207W00000X
- Enumeration date
- Mar 28, 2011
- Record updated
- Oct 15, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D., PH.D.
Reported taxonomies and licenses
207W00000X · Primary
License reported: A125048 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
300 Hillmont Ave., Building 340 Ste 302Ventura, CA 93003
- Phone
- (805) 652-6255
Mailing address
4650 W SUNSET BLVD # 88LOS ANGELES, CA 900276062
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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