Dr. Christopher N. Ta, MD
Ophthalmology (Ophthalmology Physician)
300 Pasteur Dr
Stanford, CA 94305
Who else practices at this address →
Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Minnesota Medical School (1994)
- Years since graduation
- 32
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 372
Licensed in California since 1995, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1994Medical school: University of Minnesota Medical School
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Ophthalmology Physician primary
CA license A54687 (first issued 1995; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Stanford Health Care Stanford, CA
Medical groups
- Stanford Health Care (3,122 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 372
- Services billed
- 1,210
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 554 | 248 |
| Established patient office or other outpatient visit, 40-54 minutes | 284 | 141 |
| Closure of tear duct opening using plug | 130 | 37 |
| Established patient office or other outpatient visit, 20-29 minutes | 97 | 74 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 65 | 32 |
| Removal of eyelashes using forceps | 38 | 22 |
| 2d ultrasound scan of eye tissue and structures | 37 | 19 |
| Scraping of cornea for diagnosis | 33 | 25 |
| New patient office or other outpatient visit, 45-59 minutes | 33 | 33 |
| Established patient complete exam of visual system | 21 | 21 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Erythromycin (erythromycin base) Other prescribers in Stanford, CA | 186 |
| Doxycycline Hyclate Other prescribers in Stanford, CA | 106 |
| Restasis (cyclosporine) Other prescribers in Stanford, CA | 91 |
| Moxifloxacin (moxifloxacin hcl) Other prescribers in Stanford, CA | 78 |
| Valacyclovir (valacyclovir hcl) Other prescribers in Stanford, CA | 71 |
| Xiidra (lifitegrast) Other prescribers in Stanford, CA | 62 |
| Prednisolone Acetate Other prescribers in Stanford, CA | 52 |
| Cyclosporine Other prescribers in Stanford, CA | 51 |
| Miebo (perfluorohexyloctane/pf) | 22 |
| Acyclovir Other prescribers in Stanford, CA | 19 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 2 companies reported 3 payments worth $2,441 in total to this clinician.
| Dompe Farmaceutici S.p.a. | $2,410 |
|---|---|
| Alcon Vision LLC | $31.24 |
| Consulting Fee | $2,400 |
|---|---|
| Food and Beverage | $41.00 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Dompe Farmaceutici S.p.a. Dec 22, 2025 | Consulting Fee | $2,400 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.