A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Kao’s office at (408) 453-9988 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
7 of 7 plans
Plans whose provider directory lists this clinician
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Largest Original Medicare bills
Established patient complete exam of visual system
33
$1,733
$53
Short return visit (20+ min)
11
$681
$62
Photography of the retina
27
$555
$21
Who their Medicare patients are
52 Original Medicare patients in 2024. Average age 74 · Women 52% · Also on Medicaid 0% · Health risk score 0.53. At or below the middle of the specialty; the typical optometry clinician is at 0.97.
Conditions among them: High blood pressure 56% · Diabetes 37%.
The office billed $8,261, Medicare allowed $7,556 and paid $4,216; for 99 services of 8 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
2024
52
99
74
0.53
$8,261
$4,216
2023
48
82
74
0.74
$6,211
$3,230
2022
40
97
72
0.52
$7,790
$3,335
2021
36
72
73
0.79
$5,258
$2,791
2020
23
52
71
0.43
$4,140
$1,895
2019
60
126
72
0.57
$9,684
$5,218
2018
44
94
73
0.69
$7,242
$3,865
2017
45
71
74
0.60
$5,063
$2,610
2016
52
78
74
0.74
$5,879
$2,802
2015
75
117
77
1.06
$9,214
$5,408
2014
143
193
79
1.14
$14,701
$8,402
2013
195
243
80
1.16
$21,740
$12,228
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: 2 services
Original Medicare services billed in 2023
Established patient complete exam of visual system
29
$1,570
$54
Photography of the retina
29
$783
$26
2022: 2 services
Original Medicare services billed in 2022
Established patient complete exam of visual system
26
$1,254
$46
Photography of the retina
28
$546
$19
2021: 2 services
Original Medicare services billed in 2021
Established patient complete exam of visual system
23
$940
$41
Photography of the retina
25
$517
$21
2020: 1 service
Original Medicare services billed in 2020
Established patient complete exam of visual system
15
$478
$32
2019: 3 services
Original Medicare services billed in 2019
Established patient complete exam of visual system
44
$2,235
$50
Short return visit (20+ min)
14
$1,434
$57
Photography of the retina
33
$703
$21
2018: 3 services
Original Medicare services billed in 2018
Established patient complete exam of visual system
27
$1,321
$49
Short return visit (20+ min)
11
$1,045
$61
Photography of the retina
13
$363
$28
2017: 2 services
Original Medicare services billed in 2017
Established patient complete exam of visual system
29
$1,304
$45
Photography of the retina
21
$508
$24
2016: 2 services
Original Medicare services billed in 2016
Established patient complete exam of visual system
39
$1,556
$40
Photography of the retina
15
$348
$23
2015: 3 services
Original Medicare services billed in 2015
Established patient complete exam of visual system
58
$2,852
$49
Short return visit (20+ min)
13
$1,329
$63
Photography of the retina
17
$335
$20
2014: 4 services
Original Medicare services billed in 2014
Established patient complete exam of visual system
107
$4,560
$43
New patient complete exam of visual system
29
$1,448
$50
Short return visit (20+ min)
14
$1,383
$63
Photography of the retina
19
$379
$20
2013: 4 services
Original Medicare services billed in 2013
Established patient complete exam of visual system
110
$6,352
$57
New patient complete exam of visual system
74
$4,201
$57
Short return visit (20+ min)
11
$549
$42
Photography of the retina
19
$346
$18
Medicaid work
$72 in 2022
Medicaid paid $72 for 27 billed services this clinician did in 2022, up to 15 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 2022
DETERMINATION REFRACTIVE STATE
27
$72
Medicaid work by year
2022
27
1
15
$72
2021
215
4
21
$788
2020
41
2
16
$171
2019
100
2
31
$724
2018
993
5
71
$8,190
See the largest Medicaid services in earlier years
2021
Largest Medicaid services in 2021
OPH SVCS MEDICAL XM&EVAL COMPRE NEW PT 1/> VST
61
$497
DETERMINATION REFRACTIVE STATE
116
$195
Frames, purchases
26
$77
Fitting of monofocal spectacles
12
$19
2020
Largest Medicaid services in 2020
OPH SVCS MEDICAL XM&EVAL COMPRE NEW PT 1/> VST
12
$107
DETERMINATION REFRACTIVE STATE
29
$65
2019
Largest Medicaid services in 2019
OPH SVCS MEDICAL XM&EVAL COMPRE NEW PT 1/> VST
40
$522
DETERMINATION REFRACTIVE STATE
60
$202
2018
Largest Medicaid services in 2018
OPH SVCS MEDICAL XM&EVAL COMPRE NEW PT 1/> VST
279
$2,556
Fitting of monofocal spectacles
62
$1,570
OPH SVCS MEDICAL XM&EVAL COMPRE EST PT 1/>VST
123
$1,562
Frames, purchases
51
$1,493
DETERMINATION REFRACTIVE STATE
478
$1,009
Money from drug and device companies
$220 in 2025
Industry payments by year
2025
4
6
—None
$220
2024
3
8
—None
$167
2023
3
7
—None
$223
2022
1
4
—None
$66
2021
4
10
—None
$273
2020
3
5
—None
$95
2019
7
14
—None
$373
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.