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Judy I Ou, MD

Ophthalmology · Fremont

NPI 1568483964

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Offices
3

Offices

3 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Plans that list them

1 plan · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Ou’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A84096 · Current

Licensed to practise in California · since 2003 · expires 2027-04-30 · University of California San Francisco School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

$165,411

Medicare paid this office $165,411 for 556 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Return visit (30+ min)432$85,045$108
Exam of visual field with extended testing253$14,380$51
Removal of recurring cataract in lens capsule using a laser20$9,929$320
Imaging of optic nerve257$8,152$28
Established patient complete exam of visual system75$7,019$94
See all 18 services
Every Original Medicare service billed
Return visit (30+ min)432$85,045$108
Exam of visual field with extended testing253$14,380$51
Removal of recurring cataract in lens capsule using a laser20$9,929$320
Imaging of optic nerve257$8,152$28
Established patient complete exam of visual system75$7,019$94
Closure of tear duct opening using plug22$6,960$158
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's272$5,594$14
New patient visit (45+ min)43$5,304$123
Laser repair to improve eye fluid flow12$5,033$240
Photography of the retina135$4,555$33
New patient complete exam of visual system18$1,950$108
Imaging of retina55$1,923$35
Short return visit (20+ min)21$1,634$78
Established patient problem focused exam of visual system12$1,197$80
Exam of the internal drainage system of eye40$1,025$25
Imaging of front third of eye using a special microscope16$698$39
Ultrasound scan of cornea to determine thickness37$441$10
Removal of eyelashes using forceps15$298$19

Procedures Medicare counted

Procedure volume Medicare published
Cataract surgery31More than 54% of doctors who do this

Who their Medicare patients are

556 Original Medicare patients in 2024. Average age 76 · Under 65 2% · 85 and older 16% · Women 60% · Also on Medicaid 22% · 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 69% · Diabetes 43% · Coronary heart disease 23% · Chronic kidney disease 20% · Atrial fibrillation 14% · Cancer 12% · Heart failure 9% · Depression 8% · COPD 5% · Stroke 4% · Dementia 3%.

The office billed $776,467, Medicare allowed $239,048 and paid $165,411; for 2,373 services of 28 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

Original Medicare by year
20245562,373760.93$776,467$165,411
20235411,816760.96$620,342$139,380
20225211,704760.91$572,519$133,310
20215321,813750.99$600,071$151,257
20204661,360741.08$416,239$100,534
20195891,799751.11$545,448$127,258
20185581,764741.20$521,293$122,246
20175931,747741.15$511,472$117,690
20165141,318741.13$364,166$80,534
20156982,161741.08$603,119$146,257
20147042,087731.02$594,828$141,518
20136351,886731.13$539,540$129,918

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: 14 services

Original Medicare services billed in 2023
Return visit (30+ min)402$72,531$103
Exam of visual field with extended testing240$14,965$53
New patient visit (45+ min)98$12,508$128
Imaging of optic nerve250$8,312$30
Established patient complete exam of visual system49$5,311$106
Closure of tear duct opening using plug20$5,192$200
Photography of the retina89$3,111$35
Established patient problem focused exam of visual system31$2,867$90
Imaging of retina50$1,889$34
Short return visit (20+ min)15$1,256$78
Exam of the internal drainage system of eye45$1,223$25
Ultrasound scan of cornea to determine thickness49$539$10
Imaging of front third of eye using a special microscope14$512$37
Removal of eyelashes using forceps13$301$19

2022: 16 services

Original Medicare services billed in 2022
Return visit (30+ min)425$74,454$104
Exam of visual field with extended testing225$13,146$53
Imaging of optic nerve240$7,196$28
New patient visit (45+ min)56$6,619$118
Removal of recurring cataract in lens capsule using a laser16$6,443$322
Closure of tear duct opening using plug18$6,306$185
Established patient complete exam of visual system25$2,876$107
Long return visit (40+ min)15$2,402$160
Photography of the retina66$2,238$34
Established patient problem focused exam of visual system24$2,135$76
Imaging of retina45$1,639$36
Exam of the internal drainage system of eye46$1,339$26
Short return visit (20+ min)19$1,166$61
Ultrasound scan of cornea to determine thickness38$465$10
Imaging of front third of eye using a special microscope14$465$33
Removal of eyelashes using forceps13$369$18

2021: 14 services

Original Medicare services billed in 2021
Return visit (30+ min)447$87,935$109
Exam of visual field with extended testing224$13,165$54
New patient visit (45+ min)69$9,262$134
Removal of recurring cataract in lens capsule using a laser17$8,525$328
Imaging of optic nerve235$8,004$30
Closure of tear duct opening using plug17$6,099$133
Long return visit (40+ min)20$3,486$166
Exam of the internal drainage system of eye72$1,945$26
Short return visit (20+ min)19$1,819$76
Imaging of retina47$1,757$36
Photography of the retina34$1,286$37
Ultrasound scan of cornea to determine thickness57$688$11
Removal of eyelashes using forceps19$543$21
Imaging of front third of eye using a special microscope12$394$33

2020: 11 services

Original Medicare services billed in 2020
Return visit (30+ min)407$56,028$87
Exam of visual field with extended testing140$9,390$55
New patient visit (45+ min)63$7,366$117
Removal of recurring cataract in lens capsule using a laser16$6,189$326
Imaging of optic nerve138$4,282$30
Short return visit (20+ min)41$4,240$68
Closure of tear duct opening using plug12$3,550$177
Exam of the internal drainage system of eye60$1,638$26
Imaging of retina36$1,262$33
Photography of the retina31$1,192$38
Ultrasound scan of cornea to determine thickness37$471$10

2019: 12 services

Original Medicare services billed in 2019
Return visit (30+ min)511$72,648$91
Exam of visual field with extended testing225$15,549$56
New patient visit (45+ min)81$10,353$128
Imaging of optic nerve244$7,772$31
Closure of tear duct opening using plug18$5,894$134
Photography of the retina69$3,403$48
Short return visit (20+ min)36$2,535$62
Imaging of retina41$1,428$35
Exam of the internal drainage system of eye50$1,315$24
Ultrasound scan of cornea to determine thickness45$676$11
Removal of eyelashes using forceps16$539$32
Photography of content of eyes15$285$19

2018: 11 services

Original Medicare services billed in 2018
Return visit (30+ min)473$64,275$88
Exam of visual field with extended testing225$16,982$57
New patient visit (45+ min)83$10,317$124
Imaging of optic nerve230$7,285$30
Short return visit (20+ min)47$5,029$65
Closure of tear duct opening using plug14$4,012$149
Photography of the retina35$1,813$52
Imaging of retina47$1,720$37
Exam of the internal drainage system of eye56$1,440$23
Removal of eyelashes using forceps25$1,243$41
Ultrasound scan of cornea to determine thickness41$707$14

2017: 11 services

Original Medicare services billed in 2017
Return visit (30+ min)423$48,640$86
Exam of visual field with extended testing219$15,229$52
Short return visit (20+ min)130$12,569$58
New patient visit (45+ min)89$11,070$124
Imaging of optic nerve229$6,466$27
Photography of the retina39$2,246$58
Imaging of retina46$1,750$34
Exam of the internal drainage system of eye65$1,651$25
Long return visit (40+ min)11$1,367$124
Removal of eyelashes using forceps22$1,113$45
Ultrasound scan of cornea to determine thickness30$462$14

2016: 10 services

Original Medicare services billed in 2016
Return visit (30+ min)325$27,458$79
Exam of visual field with extended testing205$13,208$52
Short return visit (20+ min)154$11,272$51
New patient visit (45+ min)88$10,970$125
Imaging of optic nerve198$6,081$30
Photography of the retina37$2,551$69
Exam of the internal drainage system of eye33$703$21
Imaging of retina18$701$39
Removal of eyelashes using forceps15$607$36
Ultrasound scan of cornea to determine thickness40$554$12

2015: 14 services

Original Medicare services billed in 2015
Return visit (30+ min)487$49,922$89
Short return visit (20+ min)242$26,924$61
Exam of visual field with extended testing249$18,216$58
New patient visit (45+ min)118$16,543$140
Imaging of optic nerve258$9,333$35
Creation of eye fluid drainage tracts in iris using a laser, per session11$5,598$295
Photography of the retina54$4,139$77
Imaging of retina69$3,184$41
Removal of eyelashes using forceps24$1,425$43
New patient visit (30+ min)15$1,338$89
Ultrasound scan of cornea to determine thickness70$1,059$14
Exam of the internal drainage system of eye33$917$25
Ct scan of cornea12$425$30
Photography of content of eyes16$287$17

2014: 15 services

Original Medicare services billed in 2014
Return visit (30+ min)457$42,207$83
Short return visit (20+ min)253$28,207$57
New patient visit (45+ min)136$17,916$132
Exam of visual field with extended testing216$13,280$57
Imaging of optic nerve248$9,233$36
Creation of eye fluid drainage tracts in iris using a laser, per session11$5,971$271
Photography of the retina48$3,663$73
Imaging of retina59$2,784$40
New patient visit (30+ min)32$2,485$78
Removal of eyelashes using forceps27$1,539$45
Exam of visual field with limited testing45$1,300$29
Short return visit12$989$40
Ultrasound scan of cornea to determine thickness59$834$12
Exam of the internal drainage system of eye30$745$25
Photography of content of eyes21$410$18

2013: 15 services

Original Medicare services billed in 2013
Return visit (30+ min)389$35,791$84
Short return visit (20+ min)244$25,331$60
New patient visit (45+ min)141$19,360$137
Exam of visual field with extended testing170$10,354$59
Imaging of optic nerve177$6,776$37
Creation of eye fluid drainage tracts in iris using a laser, per session13$6,704$279
Photography of the retina55$3,562$64
Exam of visual field with limited testing112$3,535$31
Imaging of retina69$2,961$38
New patient visit (30+ min)36$2,912$81
Removal of eyelashes using forceps23$1,373$44
Ultrasound scan of cornea to determine thickness60$839$13
Short return visit19$799$38
Exam of the internal drainage system of eye27$666$25
Photography of content of eyes16$316$18

Medicaid work

$533 in 2024

Medicaid paid $533 for 16 billed services this clinician did in 2024, up to 16 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.

Largest Medicaid services in 2024
Return visit (30+ min)16$533
Medicaid work by year
202416116$533
202314114$367
201914112$177
201812112$41
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Return visit (30+ min)14$367

2019

Largest Medicaid services in 2019
Return visit (30+ min)14$177

2018

Largest Medicaid services in 2018
Return visit (30+ min)12$41

Drugs they prescribed that Part D paid

$270,290

Pharmacies billed $270,290 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 1,737) in 2024. At or below the middle of the specialty; the typical ophthalmology clinician is at 0%.

931 generic and 806 brand-name prescriptions · $270,290 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.

Largest Part D drug costs
Restasis122$108,580$890
Cyclosporine170$52,919$311
Xiidra30$41,577$1,386
Lumigan14$8,240$589
Cequa13$7,256$558
See all 19 drugs
Every Part D drug this clinician prescribed
Restasis122$108,580$890
Cyclosporine170$52,919$311
Xiidra30$41,577$1,386
Lumigan14$8,240$589
Cequa13$7,256$558
Brinzolamide27$6,196$229
Latanoprost572$5,460$10
Brimonidine201$4,042$20
Travatan Z12$3,830$319
Loteprednol Etabonate12$2,392$199
Valacyclovir22$2,263$103
Timolol Maleate206$2,184$11
Dorzolamide72$2,000$28
Prednisolone Acetate29$1,778$61
Azelastine28$556$20
Erythromycin54$439$8
Neomycin-Polymyxin-Dexameth19$158$8
Ketorolac Tromethamine14$145$10
Acyclovir11$125$11

Year by year

Part D prescribing by year
20241,7373460% (0)46%$270,290
20231,5593190% (0)49%$356,232
20221,2432780% (0)46%$253,230
20211,2382690% (0)43%$225,483
20201,2802640% (0)39%$212,304
20191,1172600% (0)40%$197,116
20181,0482320% (0)40%$173,630
20171,0672400% (0)49%$169,208
20169992250% (0)55%$142,353
20151,3362730% (0)56%$160,312
20141,3082440% (0)56%$136,209
20131,1332390% (0)55%$105,983

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 20 drugs

Part D drugs prescribed in 2023
Restasis195$190,049$975
Xiidra45$49,872$1,108
Cyclosporine48$25,455$530
Tyrvaya16$11,254$703
Latanoprost451$8,819$20
Restasis Multidose12$8,621$718
Lumigan13$8,473$652
Brimonidine161$4,932$31
Travatan Z16$4,578$286
Timolol Maleate216$3,936$18
Dorzolamide60$3,588$60
Brinzolamide11$3,182$289
Loteprednol Etabonate11$2,340$213
Prednisolone Acetate28$1,700$61
Valacyclovir19$1,438$76
Epinastine14$943$67
Erythromycin69$742$11
Azelastine24$684$28
Dorzolamide-Timolol12$470$39
Neomycin-Polymyxin-Dexameth22$310$14

2022: 13 drugs

Part D drugs prescribed in 2022
Restasis145$148,778$1,026
Xiidra45$35,880$797
Latanoprost372$7,932$21
Lumigan20$7,709$385
Dorzolamide76$3,678$48
Timolol Maleate167$3,406$20
Travatan Z12$3,011$251
Brimonidine117$2,825$24
Prednisolone Acetate37$2,041$55
Valacyclovir14$1,213$87
Erythromycin52$484$9
Doxycycline Hyclate11$386$35
Neomycin-Polymyxin-Dexameth25$342$14

2021: 13 drugs

Part D drugs prescribed in 2021
Restasis149$138,338$928
Xiidra36$26,503$736
Latanoprost342$7,698$23
Lumigan16$7,116$445
Dorzolamide88$4,954$56
Brimonidine162$4,177$26
Timolol Maleate154$3,085$20
Olopatadine37$2,083$56
Prednisolone Acetate24$1,777$74
Valacyclovir24$1,729$72
Erythromycin42$546$13
Dorzolamide-Timolol14$416$30
Neomycin-Polymyxin-Dexameth21$293$14

2020: 20 drugs

Part D drugs prescribed in 2020
Restasis143$116,695$816
Xiidra25$16,487$659
Azopt11$7,256$660
Latanoprost339$6,812$20
Combigan13$6,799$523
Pazeo19$4,879$257
Brimonidine146$4,791$33
Travatan Z12$4,324$360
Dorzolamide80$4,018$50
Olopatadine79$3,817$48
Valacyclovir34$3,220$95
Travoprost11$3,175$289
Lumigan11$3,124$284
Timolol Maleate122$2,144$18
Prednisolone Acetate25$1,799$72
Acyclovir19$791$42
Erythromycin58$713$12
Ketorolac Tromethamine12$346$29
Neomycin-Polymyxin-Dexameth22$309$14
Ofloxacin12$172$14

2019: 18 drugs

Part D drugs prescribed in 2019
Restasis147$110,423$751
Xiidra24$12,665$528
Travatan Z33$8,403$255
Combigan15$7,634$509
Olopatadine89$6,231$70
Azopt11$5,967$542
Latanoprost231$5,099$22
Zirgan11$4,127$375
Lumigan11$4,009$364
Brimonidine93$3,187$34
Pazeo13$2,564$197
Valacyclovir39$2,410$62
Dorzolamide53$2,091$39
Timolol Maleate113$1,855$16
Prednisolone Acetate24$1,723$72
Erythromycin61$697$11
Neomycin-Polymyxin-Dexameth20$305$15
Azelastine13$267$21

2018: 19 drugs

Part D drugs prescribed in 2018
Restasis114$81,091$711
Valganciclovir19$25,052$1,319
Travatan Z43$8,642$201
Combigan19$7,456$392
Azopt15$5,967$398
Olopatadine60$5,472$91
Latanoprost236$4,208$18
Lotemax18$4,019$223
Prednisolone Acetate31$2,869$93
Durezol15$2,636$176
Valacyclovir37$2,259$61
Timolol Maleate138$1,728$13
Brimonidine72$1,703$24
Epinastine20$947$47
Dorzolamide39$872$22
Neomycin-Polymyxin-Dexameth29$461$16
Dorzolamide-Timolol11$387$35
Erythromycin39$360$9
Ofloxacin11$193$18

2017: 22 drugs

Part D drugs prescribed in 2017
Restasis101$60,807$602
Travatan Z86$15,501$180
Xiidra20$9,115$456
Lumigan37$7,638$206
Azopt21$6,737$321
Pataday34$6,251$184
Combigan21$5,047$240
Prednisolone Acetate47$4,162$89
Alphagan P11$3,884$353
Timolol Maleate117$3,705$32
Lotemax12$3,377$281
Brimonidine71$3,265$46
Olopatadine20$3,175$159
Latanoprost213$3,168$15
Durezol11$1,752$159
Epinastine20$1,104$55
Valacyclovir22$1,046$48
Bacitracin11$925$84
Dorzolamide23$728$32
Dorzolamide-Timolol16$454$28
Erythromycin39$408$10
Neomycin-Polymyxin-Dexameth20$311$16

2016: 16 drugs

Part D drugs prescribed in 2016
Restasis89$50,078$563
Travatan Z108$17,677$164
Pataday71$13,613$192
Alphagan P41$11,331$276
Azopt31$9,661$312
Lumigan49$9,400$192
Brimonidine64$6,349$99
Timolol Maleate92$3,580$39
Latanoprost227$3,150$14
Prednisolone Acetate27$2,718$101
Valacyclovir12$1,070$89
Travoprost11$1,010$92
Epinastine18$820$46
Dorzolamide-Timolol19$551$29
Dorzolamide24$537$22
Erythromycin43$506$12

2015: 20 drugs

Part D drugs prescribed in 2015
Restasis104$48,032$462
Pataday118$20,645$175
Travatan Z106$15,187$143
Azopt47$14,554$310
Alphagan P43$10,600$247
Lumigan49$10,202$208
Brimonidine92$5,473$59
Prednisolone Acetate44$4,427$101
Latanoprost307$4,329$14
Combigan20$3,634$182
Lotemax13$2,703$208
Vigamox13$1,811$139
Azasite11$1,475$134
Timolol Maleate117$1,455$12
Epinastine22$1,224$56
Dorzolamide-Timolol30$1,047$35
Dorzolamide39$1,039$27
Erythromycin44$585$13
Ofloxacin16$296$18
Neomycin-Polymyxin-Dexameth11$204$19

2014: 22 drugs

Part D drugs prescribed in 2014
Restasis74$26,585$359
Travatan Z101$16,640$165
Pataday106$15,666$148
Azopt59$13,557$230
Alphagan P36$10,743$298
Lumigan52$8,334$160
Brimonidine95$5,778$61
Latanoprost264$4,858$18
Prednisolone Acetate39$3,699$95
Combigan20$3,117$156
Vigamox26$2,946$113
Lotemax12$2,265$189
Tobradex12$2,118$176
Timolol Maleate131$1,573$12
Azasite14$1,495$107
Valacyclovir17$1,313$77
Dorzolamide-Timolol32$1,281$40
Dorzolamide33$1,155$35
Doxycycline Hyclate11$1,031$94
Epinastine18$957$53
Erythromycin57$789$14
Ofloxacin14$156$11

2013: 20 drugs

Part D drugs prescribed in 2013
Restasis54$18,153$336
Travatan Z82$14,378$175
Pataday107$13,549$127
Azopt47$8,643$184
Lumigan47$7,256$154
Alphagan P26$7,097$273
Brimonidine80$6,189$77
Latanoprost239$5,264$22
Lotemax11$2,217$202
Tobradex12$1,983$165
Azasite16$1,595$100
Timolol Maleate113$1,540$14
Famciclovir11$1,525$139
Dorzolamide-Timolol32$1,379$43
Dorzolamide28$1,195$43
Epinastine20$1,151$58
Prednisolone Acetate40$1,109$28
Diclofenac22$400$18
Erythromycin26$378$15
Ofloxacin11$130$12

Professional record

NPI
1568483964
Licence
CA A84096California A84096: Current · expires 2027-04-30
Trained
University of California, San Francisco School of Medicine, 2002
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207W00000X (207W00000X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2006-07-21
NPI last updated
2020-05-26
NPI record certified
2020-05-26

This is when the NPI record was last certified, not a medical board exam.