Vivien Au, DO
Ophthalmology · Sunnyvale
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 14
- 2 carriers
- Office
- 1
Offices
1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Looking this up.
Plans that list them
14 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Au’s office at (408) 524-5900 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
14 of 14 plans
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Sutter Advantage +More (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
Original Medicare doctor bills
$194,402
Medicare paid this office $194,402 for 513 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Return visit (30+ min) | 380 | $81,887 | $109 |
| Exam of visual field with extended testing | 253 | $20,616 | $59 |
| Imaging of optic nerve | 412 | $18,884 | $33 |
| Short return visit (20+ min) | 184 | $17,652 | $77 |
| Removal of recurring cataract in lens capsule using a laser | 19 | $8,117 | $338 |
See all 17 services
| Return visit (30+ min) | 380 | $81,887 | $109 |
| Exam of visual field with extended testing | 253 | $20,616 | $59 |
| Imaging of optic nerve | 412 | $18,884 | $33 |
| Short return visit (20+ min) | 184 | $17,652 | $77 |
| Removal of recurring cataract in lens capsule using a laser | 19 | $8,117 | $338 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | 337 | $7,900 | $15 |
| Laser repair to improve eye fluid flow | 20 | $6,982 | $241 |
| Closure of tear duct opening using plug | 16 | $4,403 | $191 |
| Established patient complete exam of visual system | 44 | $4,368 | $99 |
| Long return visit (40+ min) | 22 | $4,069 | $156 |
| New patient visit (45+ min) | 23 | $3,347 | $146 |
| Exam of the internal drainage system of eye | 88 | $2,485 | $26 |
| Photography of the retina | 38 | $1,411 | $35 |
| Imaging of retina | 27 | $1,133 | $38 |
| Exam to measure eye deviation and range of motion | 12 | $959 | $60 |
| Removal of eyelashes using forceps | 17 | $326 | $18 |
| Ultrasound scan of cornea to determine thickness | 24 | $246 | $10 |
Procedures Medicare counted
| Cataract surgery | 13 | More than 36% of doctors who do this |
Who their Medicare patients are
513 Original Medicare patients in 2024. Average age 77 · Women 65% · Also on Medicaid 11% · Health risk score 0.93. At or below the middle of the specialty; the typical ophthalmology clinician is at 1.16.
Conditions among them: High blood pressure 67% · Diabetes 29% · Coronary heart disease 20% · Chronic kidney disease 20% · Atrial fibrillation 15% · Depression 14% · Cancer 13% · Heart failure 9% · COPD 8% · Stroke 7% · Dementia 5%.
The office billed $858,712, Medicare allowed $270,415 and paid $194,402; for 3,197 services of 42 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 513 | 3,197 | 77 | 0.93 | $858,712 | $194,402 |
| 2023 | 485 | 2,271 | 77 | 0.92 | $729,230 | $165,870 |
| 2022 | 502 | 2,284 | 77 | 0.91 | $730,678 | $170,713 |
| 2021 | 453 | 2,192 | 77 | 0.89 | $663,307 | $165,461 |
| 2020 | 409 | 1,904 | 76 | 1.01 | $538,919 | $126,436 |
| 2019 | 471 | 2,009 | 77 | 0.96 | $608,689 | $141,866 |
| 2018 | 355 | 1,239 | 77 | 0.94 | $363,947 | $88,711 |
| 2016 | 28 | 38 | 67 | 1.58 | $5,310 | $2,833 |
| 2015 | 30 | 40 | 65 | 1.86 | $5,210 | $3,073 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2023: 16 services
| Return visit (30+ min) | 331 | $47,557 | $104 |
| Short return visit (20+ min) | 281 | $31,878 | $74 |
| Exam of visual field with extended testing | 245 | $17,231 | $59 |
| Imaging of optic nerve | 358 | $14,547 | $32 |
| Established patient complete exam of visual system | 77 | $9,112 | $118 |
| Removal of recurring cataract in lens capsule using a laser | 20 | $7,868 | $328 |
| Laser repair to improve eye fluid flow | 22 | $7,193 | $232 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 15 | $6,781 | $308 |
| Closure of tear duct opening using plug | 20 | $6,107 | $211 |
| Long return visit (40+ min) | 19 | $2,996 | $158 |
| Exam of the internal drainage system of eye | 102 | $2,928 | $25 |
| New patient visit (45+ min) | 22 | $2,590 | $118 |
| Photography of the retina | 30 | $1,108 | $35 |
| Imaging of retina | 12 | $492 | $41 |
| Imaging of front third of eye | 12 | $359 | $30 |
| Ultrasound scan of cornea to determine thickness | 27 | $276 | $10 |
2022: 15 services
| Return visit (30+ min) | 326 | $43,652 | $102 |
| Short return visit (20+ min) | 258 | $31,021 | $79 |
| Exam of visual field with extended testing | 228 | $15,020 | $58 |
| Imaging of optic nerve | 354 | $14,992 | $33 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 22 | $11,086 | $317 |
| Removal of recurring cataract in lens capsule using a laser | 24 | $9,485 | $339 |
| New patient visit (45+ min) | 68 | $9,339 | $137 |
| Established patient complete exam of visual system | 78 | $8,317 | $105 |
| Laser repair to improve eye fluid flow | 19 | $7,437 | $240 |
| Closure of tear duct opening using plug | 16 | $4,640 | $193 |
| Exam of the internal drainage system of eye | 123 | $3,783 | $26 |
| Long return visit (40+ min) | 24 | $3,311 | $138 |
| Photography of the retina | 25 | $850 | $34 |
| Ultrasound scan of cornea to determine thickness | 24 | $255 | $11 |
| Removal of eyelashes using forceps | 11 | $249 | $18 |
2021: 19 services
| Return visit (30+ min) | 272 | $43,756 | $106 |
| Short return visit (20+ min) | 200 | $23,624 | $80 |
| Exam of visual field with extended testing | 228 | $17,237 | $62 |
| Imaging of optic nerve | 297 | $13,538 | $34 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 17 | $8,556 | $317 |
| Long return visit (40+ min) | 43 | $8,441 | $162 |
| New patient visit (45+ min) | 56 | $7,884 | $141 |
| Laser repair to improve eye fluid flow | 19 | $7,585 | $245 |
| Removal of recurring cataract in lens capsule using a laser | 17 | $7,243 | $345 |
| Established patient complete exam of visual system | 66 | $6,833 | $104 |
| Exam of the internal drainage system of eye | 128 | $4,045 | $27 |
| Closure of tear duct opening using plug | 12 | $3,688 | $205 |
| New patient complete exam of visual system | 22 | $2,783 | $126 |
| Photography of the retina | 31 | $1,148 | $37 |
| Exam to measure eye deviation and range of motion | 11 | $1,045 | $65 |
| Short return visit | 11 | $623 | $57 |
| Imaging of retina | 14 | $555 | $40 |
| Ultrasound scan of cornea to determine thickness | 48 | $520 | $11 |
| Removal of eyelashes using forceps | 11 | $227 | $17 |
2020: 16 services
| Return visit (30+ min) | 293 | $32,536 | $90 |
| Short return visit (20+ min) | 203 | $17,739 | $60 |
| Exam of visual field with extended testing | 201 | $13,429 | $58 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 24 | $12,050 | $301 |
| Imaging of optic nerve | 261 | $10,207 | $33 |
| Removal of recurring cataract in lens capsule using a laser | 22 | $8,858 | $328 |
| New patient visit (45+ min) | 58 | $7,474 | $129 |
| Laser repair to improve eye fluid flow | 11 | $4,647 | $232 |
| Exam of the internal drainage system of eye | 128 | $3,956 | $26 |
| Closure of tear duct opening using plug | 13 | $3,941 | $207 |
| Short return visit | 42 | $1,625 | $39 |
| Photography of the retina | 32 | $1,333 | $42 |
| New patient visit (30+ min) | 12 | $754 | $63 |
| Ultrasound scan of cornea to determine thickness | 49 | $532 | $11 |
| Imaging of front third of eye | 14 | $415 | $30 |
| Removal of eyelashes using forceps | 11 | $282 | $23 |
2019: 14 services
| Return visit (30+ min) | 332 | $39,557 | $90 |
| Short return visit (20+ min) | 218 | $23,217 | $65 |
| Exam of visual field with extended testing | 194 | $13,968 | $59 |
| New patient visit (45+ min) | 99 | $12,735 | $129 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 24 | $11,466 | $294 |
| Imaging of optic nerve | 266 | $10,049 | $35 |
| Removal of recurring cataract in lens capsule using a laser | 21 | $8,913 | $330 |
| Exam of the internal drainage system of eye | 171 | $4,956 | $26 |
| Closure of tear duct opening using plug | 12 | $3,427 | $180 |
| New patient visit (30+ min) | 28 | $2,429 | $87 |
| Photography of the retina | 40 | $1,886 | $47 |
| Dilation of tear drainage opening | 11 | $930 | $85 |
| Ultrasound scan of cornea to determine thickness | 60 | $688 | $11 |
| Imaging of front third of eye | 19 | $508 | $27 |
2018: 12 services
| Return visit (30+ min) | 203 | $20,429 | $90 |
| New patient visit (45+ min) | 100 | $14,212 | $142 |
| Short return visit (20+ min) | 139 | $13,085 | $68 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | 18 | $7,417 | $275 |
| Exam of visual field with extended testing | 103 | $7,041 | $63 |
| Imaging of optic nerve | 158 | $6,028 | $35 |
| Exam of the internal drainage system of eye | 128 | $3,517 | $26 |
| New patient visit (30+ min) | 38 | $3,460 | $91 |
| Photography of the retina | 29 | $1,539 | $53 |
| Ultrasound scan of cornea to determine thickness | 49 | $681 | $14 |
| Imaging of retina | 12 | $479 | $40 |
| Imaging of front third of eye | 15 | $468 | $31 |
2015: 1 service
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 16 | $1,364 | $85 |
Medicaid work
$816 in 2023
Medicaid paid $816 for 12 billed services this clinician did in 2023, up to 12 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| Return visit (30+ min) | 12 | $816 |
| 2023 | 12 | 1 | 12 | $816 |
Drugs they prescribed that Part D paid
$227,266
Pharmacies billed $227,266 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 0% of their Part D prescriptions (0 of 2,420) in 2024. At or below the middle of the specialty; the typical ophthalmology clinician is at 0%.
1,507 generic and 913 brand-name prescriptions · $227,266 in drug cost.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
| Restasis | 42 | $61,310 | $1,460 |
| Lumigan | 49 | $31,181 | $636 |
| Vyzulta | 60 | $27,886 | $465 |
| Miebo | 20 | $15,990 | $799 |
| Xiidra | 13 | $11,498 | $884 |
See all 20 drugs
| Restasis | 42 | $61,310 | $1,460 |
| Lumigan | 49 | $31,181 | $636 |
| Vyzulta | 60 | $27,886 | $465 |
| Miebo | 20 | $15,990 | $799 |
| Xiidra | 13 | $11,498 | $884 |
| Rhopressa | 22 | $11,263 | $512 |
| Latanoprost | 860 | $10,840 | $13 |
| Rocklatan | 18 | $9,139 | $508 |
| Cyclosporine | 13 | $7,604 | $585 |
| Brinzolamide | 18 | $4,792 | $266 |
| Travoprost | 21 | $4,335 | $206 |
| Brimonidine | 266 | $3,668 | $14 |
| Dorzolamide-Timolol | 186 | $3,637 | $20 |
| Timolol Maleate | 305 | $3,168 | $10 |
| Erythromycin | 191 | $1,856 | $10 |
| Dorzolamide | 121 | $1,851 | $15 |
| Bimatoprost | 11 | $1,236 | $112 |
| Prednisolone Acetate | 25 | $837 | $33 |
| Tobramycin-Dexamethasone | 17 | $722 | $42 |
| Diclofenac | 63 | $526 | $8 |
Year by year
| 2024 | 2,420 | 510 | 0% (0) | 38% | $227,266 |
| 2023 | 2,140 | 478 | 0% (0) | 39% | $205,797 |
| 2022 | 1,909 | 474 | 0% (0) | 37% | $210,436 |
| 2021 | 1,987 | 460 | 0% (0) | 38% | $243,970 |
| 2020 | 2,159 | 483 | 0% (0) | 33% | $235,675 |
| 2019 | 1,760 | 446 | 0% (0) | 30% | $165,106 |
| 2018 | 1,019 | 370 | 0% (0) | 31% | $77,196 |
| 2017 | 1,017 | 286 | 0% (0) | 32% | $79,277 |
| 2016 | 101 | 66 | 0% (0) | 21% | $5,488 |
| 2015 | 34 | 19 | 0% (0) | 47% | $1,186 |
| 2014 | 60 | 20 | 0% (0) | 68% | $4,346 |
| 2013 | 12 | None | 0% (0) | None | $355 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 14 drugs
| Restasis | 35 | $52,217 | $1,492 |
| Latanoprost | 868 | $29,856 | $34 |
| Lumigan | 56 | $27,642 | $494 |
| Vyzulta | 41 | $22,364 | $545 |
| Travoprost | 23 | $7,469 | $325 |
| Brimonidine | 263 | $6,482 | $25 |
| Rocklatan | 16 | $6,269 | $392 |
| Dorzolamide-Timolol | 154 | $5,613 | $36 |
| Timolol Maleate | 254 | $4,290 | $17 |
| Dorzolamide | 87 | $3,211 | $37 |
| Erythromycin | 141 | $1,512 | $11 |
| Prednisolone Acetate | 27 | $1,003 | $37 |
| Tobramycin-Dexamethasone | 12 | $831 | $69 |
| Diclofenac | 52 | $538 | $10 |
2022: 16 drugs
| Restasis | 59 | $74,503 | $1,263 |
| Latanoprost | 749 | $30,164 | $40 |
| Lumigan | 41 | $17,105 | $417 |
| Rhopressa | 13 | $10,881 | $837 |
| Vyzulta | 23 | $10,711 | $466 |
| Rocklatan | 23 | $9,353 | $407 |
| Brimonidine | 213 | $7,392 | $35 |
| Combigan | 12 | $7,139 | $595 |
| Dorzolamide-Timolol | 117 | $4,682 | $40 |
| Timolol Maleate | 210 | $3,605 | $17 |
| Travoprost | 17 | $3,394 | $200 |
| Dorzolamide | 86 | $3,325 | $39 |
| Prednisolone Acetate | 51 | $2,201 | $43 |
| Erythromycin | 159 | $1,757 | $11 |
| Tobramycin-Dexamethasone | 12 | $962 | $80 |
| Diclofenac | 45 | $590 | $13 |
2021: 18 drugs
| Restasis | 64 | $89,552 | $1,399 |
| Latanoprost | 711 | $33,299 | $47 |
| Rocklatan | 31 | $19,196 | $619 |
| Lumigan | 31 | $10,967 | $354 |
| Rhopressa | 24 | $10,639 | $443 |
| Brimonidine | 215 | $8,854 | $41 |
| Vyzulta | 25 | $8,810 | $352 |
| Azopt | 12 | $8,523 | $710 |
| Dorzolamide-Timolol | 127 | $6,505 | $51 |
| Travoprost | 17 | $5,259 | $309 |
| Dorzolamide | 95 | $5,004 | $53 |
| Timolol Maleate | 228 | $4,568 | $20 |
| Combigan | 15 | $4,322 | $288 |
| Zioptan | 15 | $3,404 | $227 |
| Erythromycin | 201 | $2,560 | $13 |
| Tobramycin-Dexamethasone | 16 | $1,377 | $86 |
| Prednisolone Acetate | 30 | $1,289 | $43 |
| Diclofenac | 44 | $656 | $15 |
2020: 19 drugs
| Restasis | 50 | $58,437 | $1,169 |
| Latanoprost | 809 | $30,679 | $38 |
| Azopt | 42 | $21,378 | $509 |
| Rocklatan | 26 | $17,652 | $679 |
| Rhopressa | 22 | $12,767 | $580 |
| Brimonidine | 246 | $11,889 | $48 |
| Travoprost | 40 | $9,766 | $244 |
| Lumigan | 24 | $9,725 | $405 |
| Alphagan P | 14 | $8,991 | $642 |
| Combigan | 22 | $8,752 | $398 |
| Vyzulta | 25 | $7,369 | $295 |
| Dorzolamide-Timolol | 115 | $6,520 | $57 |
| Dorzolamide | 124 | $5,545 | $45 |
| Timolol Maleate | 227 | $5,093 | $22 |
| Zioptan | 14 | $3,132 | $224 |
| Prednisolone Acetate | 53 | $2,176 | $41 |
| Erythromycin | 150 | $1,952 | $13 |
| Dorzolamide-Timolol | 11 | $1,788 | $163 |
| Diclofenac | 45 | $703 | $16 |
2019: 18 drugs
| Restasis | 30 | $31,298 | $1,043 |
| Latanoprost | 673 | $21,420 | $32 |
| Combigan | 36 | $15,152 | $421 |
| Travatan Z | 30 | $11,348 | $378 |
| Brimonidine | 183 | $9,153 | $50 |
| Azopt | 20 | $8,559 | $428 |
| Alphagan P | 16 | $7,702 | $481 |
| Timolol Maleate | 172 | $7,431 | $43 |
| Vyzulta | 23 | $6,842 | $297 |
| Lumigan | 18 | $6,304 | $350 |
| Dorzolamide | 125 | $4,754 | $38 |
| Dorzolamide-Timolol | 49 | $3,864 | $79 |
| Dorzolamide-Timolol | 19 | $2,603 | $137 |
| Tobramycin-Dexamethasone | 21 | $2,591 | $123 |
| Simbrinza | 14 | $2,255 | $161 |
| Prednisolone Acetate | 46 | $1,987 | $43 |
| Erythromycin | 148 | $1,830 | $12 |
| Diclofenac | 22 | $206 | $9 |
2018: 15 drugs
| Restasis | 12 | $13,131 | $1,094 |
| Latanoprost | 356 | $8,828 | $25 |
| Brimonidine | 71 | $6,276 | $88 |
| Combigan | 22 | $5,917 | $269 |
| Lumigan | 27 | $5,371 | $199 |
| Travatan Z | 20 | $4,634 | $232 |
| Alphagan P | 14 | $4,126 | $295 |
| Timolol Maleate | 62 | $2,294 | $37 |
| Prednisolone Acetate | 45 | $2,245 | $50 |
| Tobramycin-Dexamethasone | 19 | $1,907 | $100 |
| Erythromycin | 169 | $1,812 | $11 |
| Olopatadine | 18 | $1,248 | $69 |
| Dorzolamide-Timolol | 27 | $930 | $34 |
| Dorzolamide | 33 | $785 | $24 |
| Valacyclovir | 11 | $517 | $47 |
2017: 14 drugs
| Lumigan | 72 | $17,437 | $242 |
| Restasis | 21 | $15,929 | $759 |
| Alphagan P | 50 | $7,801 | $156 |
| Combigan | 40 | $5,900 | $147 |
| Latanoprost | 387 | $5,597 | $14 |
| Travatan Z | 24 | $5,032 | $210 |
| Timolol Maleate | 113 | $4,823 | $43 |
| Tobramycin-Dexamethasone | 21 | $1,769 | $84 |
| Brimonidine | 40 | $1,638 | $41 |
| Dorzolamide-Timolol | 30 | $860 | $29 |
| Erythromycin | 86 | $858 | $10 |
| Fluorometholone | 13 | $770 | $59 |
| Prednisolone Acetate | 19 | $758 | $40 |
| Dorzolamide | 24 | $447 | $19 |
2016: 2 drugs
| Latanoprost | 25 | $315 | $13 |
| Erythromycin | 26 | $298 | $11 |
2014: 1 drug
| Combigan | 18 | $1,887 | $105 |
Money from drug and device companies
$184 in 2025
| 2025 | 1 | 2 | None | $184 |
| 2024 | 1 | 1 | None | $14 |
| 2023 | 1 | 1 | None | $294 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Alcon Vision | Hydrus Microstent | $184 | 2 payments
|
See all 2 published payments
| Alcon Vision | Meals · 2025-09-17 | Hydrus Microstent | $35 |
| Alcon Vision | Meals · 2025-03-14 | Hydrus Microstent | $149 |
See earlier years (2024, 2023)
2024: $14
| Thea Pharma | Iyuzeh | $14 | 1 payment
|
2023: $294
| Carl Zeiss Meditec USA | Cirrus 5000 With Angioplex | $294 | 1 payment
|
Professional record
- NPI
- 1649550872
- Licence
- CA 20A14980, PA OS017656, PA OT014234
- Trained
- Philadelphia College of Osteopathic Medicine, 2011
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207W00000X (207W00000X)
- Mailing address
- 2619 E Colorado Blvd, Suite 100, Pasadena, CA, 91107
- NPI first listed
- 2011-08-19
- NPI last updated
- 2016-11-06
This is when the NPI record was last certified, not a medical board exam.