We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Chen’s office at (408) 851-1000 to ask if they take your plan before you enroll.
Medicaid work
$13,361 in 2024
Medicaid paid $13,361 for 131 billed services this clinician did in 2024, up to 24 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
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
131
$13,361
Medicaid work by year
2024
131
1
24
$13,361
2023
162
2
18
$206
2022
49
1
19
$0
2021
42
1
14
$0
2020
28
1
14
$51
2019
60
1
15
$206
2018
63
1
18
$103
See the largest Medicaid services in earlier years
2023
Largest Medicaid services in 2023
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
141
$206
Postoperative follow-up visit, normally included in the surgical package, to indicate that an evaluation and management service was performed during a postoperative period for a reason(s) related to the original procedure
21
$0
2022
Largest Medicaid services in 2022
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
49
$0
2021
Largest Medicaid services in 2021
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
42
$0
2020
Largest Medicaid services in 2020
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
28
$51
2019
Largest Medicaid services in 2019
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
60
$206
2018
Largest Medicaid services in 2018
Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient
63
$103
Drugs they prescribed that Part D paid
$270,539
Pharmacies billed $270,539 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
2,637 generic and 790 brand-name prescriptions · $270,539 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
Rhopressa
67
$43,739
$653
Brinzolamide
102
$35,419
$347
Tafluprost
101
$25,001
$248
Prednisolone Acetate
376
$19,548
$52
Alphagan P
20
$17,206
$860
See all 28 drugs
Every Part D drug this clinician prescribed
Rhopressa
67
$43,739
$653
Brinzolamide
102
$35,419
$347
Tafluprost
101
$25,001
$248
Prednisolone Acetate
376
$19,548
$52
Alphagan P
20
$17,206
$860
Dorzolamide-Timolol
632
$16,125
$26
Dorzolamide-Timolol
113
$15,904
$141
Latanoprost
809
$11,627
$14
Timolol Maleate
40
$9,819
$245
Cyclosporine
66
$8,981
$136
Vyzulta
12
$7,890
$657
Cequa
13
$6,693
$515
Bimatoprost
55
$6,181
$112
Brimonidine
302
$5,846
$19
Zioptan
11
$3,948
$359
Timolol Maleate
185
$3,766
$20
Travoprost
28
$2,692
$96
Difluprednate
12
$2,303
$192
Dorzolamide
74
$2,040
$28
Fluorometholone
13
$1,618
$124
Polymyxin B Sul-Trimethoprim
119
$1,500
$13
Diclofenac
46
$897
$20
Valacyclovir
18
$740
$41
Acetazolamide
29
$701
$24
Valganciclovir
12
$620
$52
Erythromycin
27
$379
$14
Ofloxacin
18
$298
$17
Moxifloxacin
11
$108
$10
Year by year
Part D prescribing by year
2024
3,427
699
—None
23%
$270,539
2023
3,719
822
—None
25%
$288,442
2022
2,933
659
—None
27%
$267,825
2021
3,118
630
—None
26%
$329,991
2020
3,052
620
—None
26%
$330,793
2019
3,386
708
—None
28%
$343,808
2018
2,864
614
—None
28%
$258,321
2017
2,876
581
—None
29%
$250,314
2016
2,871
598
—None
31%
$257,715
2015
2,227
496
—None
—None
$153,663
2014
2,833
534
0% (0)
32%
$200,390
2013
2,380
479
0% (0)
41%
$163,686
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 29 drugs
Part D drugs prescribed in 2023
Rhopressa
64
$36,355
$568
Brinzolamide
98
$26,463
$270
Prednisolone Acetate
469
$25,211
$54
Timolol Maleate
39
$20,453
$524
Tafluprost
104
$18,486
$178
Dorzolamide-Timolol
98
$17,548
$179
Alphagan P
21
$17,278
$823
Dorzolamide-Timolol
657
$16,869
$26
Latanoprost
847
$12,367
$15
Brimonidine
352
$9,811
$28
Bimatoprost
54
$8,764
$162
Cyclosporine
57
$7,582
$133
Cequa
11
$5,579
$507
Difluprednate
19
$4,074
$214
Timolol Maleate
172
$3,825
$22
Travoprost
34
$3,577
$105
Cosopt Pf
11
$3,442
$313
Dorzolamide
122
$3,435
$28
Fluorometholone
16
$1,986
$124
Diclofenac
74
$1,462
$20
Moxifloxacin
95
$966
$10
Acetazolamide
30
$819
$27
Pilocarpine
15
$806
$54
Polymyxin B Sul-Trimethoprim
70
$788
$11
Valacyclovir
11
$570
$52
Acyclovir
11
$564
$51
Erythromycin
33
$520
$16
Levobunolol
11
$493
$45
Ofloxacin
21
$351
$17
2022: 26 drugs
Part D drugs prescribed in 2022
Rhopressa
53
$25,467
$481
Zioptan
51
$23,185
$455
Alphagan P
27
$22,131
$820
Brinzolamide
84
$19,162
$228
Timolol Maleate
32
$16,403
$513
Brimonidine
298
$16,276
$55
Dorzolamide-Timolol
587
$15,579
$27
Prednisolone Acetate
296
$15,285
$52
Latanoprost
692
$12,129
$18
Dorzolamide-Timolol
54
$12,034
$223
Cequa
22
$10,992
$500
Lumigan
19
$8,665
$456
Bimatoprost
46
$7,928
$172
Timolol Maleate
110
$3,496
$32
Difluprednate
18
$3,369
$187
Dorzolamide
98
$3,217
$33
Travoprost
31
$3,073
$99
Fluorometholone
22
$2,996
$136
Cyclosporine
11
$2,030
$185
Valacyclovir
30
$1,526
$51
Diclofenac
70
$1,366
$20
Polymyxin B Sul-Trimethoprim
100
$1,128
$11
Acetazolamide
33
$1,060
$32
Pilocarpine
11
$649
$59
Acyclovir
11
$555
$50
Ofloxacin
12
$136
$11
2021: 30 drugs
Part D drugs prescribed in 2021
Lumigan
55
$29,528
$537
Zioptan
59
$27,007
$458
Prednisolone Acetate
320
$26,840
$84
Rhopressa
54
$26,386
$489
Alphagan P
28
$23,017
$822
Dorzolamide-Timolol
586
$18,820
$32
Timoptic Ocudose
12
$17,729
$1,477
Brimonidine
312
$17,661
$57
Dorzolamide-Timolol
59
$15,261
$259
Timolol Maleate
23
$14,021
$610
Latanoprost
767
$13,908
$18
Brinzolamide
42
$10,950
$261
Cequa
19
$10,345
$544
Travoprost
37
$9,724
$263
Combigan
11
$8,591
$781
Azopt
13
$8,118
$624
Durezol
23
$7,248
$315
Fluorometholone
33
$4,820
$146
Timolol Maleate
126
$4,388
$35
Dorzolamide
93
$2,918
$31
Diclofenac
96
$2,224
$23
Polymyxin B Sul-Trimethoprim
136
$1,570
$12
Valacyclovir
30
$1,461
$49
Acetazolamide
22
$928
$42
Levobunolol
11
$835
$76
Pilocarpine
12
$766
$64
Acyclovir
15
$686
$46
Acetazolamide Er
12
$388
$32
Ofloxacin
13
$305
$23
Erythromycin
13
$176
$14
2020: 28 drugs
Part D drugs prescribed in 2020
Timoptic Ocudose
31
$33,925
$1,094
Lumigan
47
$32,672
$695
Rhopressa
64
$27,778
$434
Alphagan P
32
$26,693
$834
Azopt
40
$26,541
$664
Dorzolamide-Timolol
598
$23,647
$40
Brimonidine
323
$19,221
$60
Zioptan
44
$16,304
$371
Latanoprost
754
$15,963
$21
Prednisolone Acetate
282
$14,354
$51
Dorzolamide-Timolol
61
$12,801
$210
Restasis
19
$11,865
$624
Combigan
17
$10,277
$605
Travoprost
22
$6,975
$317
Travatan Z
17
$6,951
$409
Timolol Maleate
149
$5,129
$34
Durezol
13
$4,800
$369
Fluorometholone
42
$4,651
$111
Dorzolamide
102
$3,559
$35
Diclofenac
87
$1,628
$19
Polymyxin B Sul-Trimethoprim
92
$1,102
$12
Levobunolol
15
$865
$58
Valacyclovir
18
$736
$41
Acetazolamide Er
12
$564
$47
Erythromycin
33
$531
$16
Acyclovir
12
$482
$40
Doxycycline Monohydrate
11
$306
$28
Olopatadine
14
$279
$20
2019: 26 drugs
Part D drugs prescribed in 2019
Timoptic Ocudose
34
$35,838
$1,054
Rhopressa
74
$28,485
$385
Lumigan
64
$27,531
$430
Durezol
118
$26,826
$227
Dorzolamide-Timolol
580
$24,239
$42
Azopt
36
$21,969
$610
Restasis
35
$20,615
$589
Alphagan P
22
$19,503
$887
Prednisolone Acetate
320
$18,866
$59
Brimonidine
344
$18,443
$54
Latanoprost
824
$15,490
$19
Travatan Z
37
$15,249
$412
Zioptan
36
$12,752
$354
Combigan
11
$8,385
$762
Dorzolamide-Timolol
42
$7,704
$183
Timolol Maleate
135
$6,148
$46
Fluorometholone
42
$4,539
$108
Dorzolamide
126
$4,013
$32
Cosopt Pf
15
$3,143
$210
Polymyxin B Sul-Trimethoprim
213
$2,543
$12
Diclofenac
80
$1,226
$15
Valacyclovir
23
$1,007
$44
Erythromycin
23
$521
$23
Levobunolol
39
$513
$13
Acyclovir
11
$354
$32
Ofloxacin
12
$197
$16
2018: 25 drugs
Part D drugs prescribed in 2018
Timoptic Ocudose
31
$32,314
$1,042
Prednisolone Acetate
368
$26,990
$73
Lumigan
66
$25,355
$384
Azopt
46
$24,200
$526
Brimonidine
365
$19,413
$53
Travatan Z
37
$15,948
$431
Alphagan P
21
$15,475
$737
Latanoprost
568
$14,075
$25
Dorzolamide-Timolol
528
$12,296
$23
Combigan
12
$8,042
$670
Zioptan
20
$7,966
$398
Timolol Maleate
145
$6,794
$47
Restasis
12
$6,373
$531
Cosopt Pf
20
$6,002
$300
Rhopressa
16
$4,751
$297
Dorzolamide
120
$3,393
$28
Polymyxin B Sul-Trimethoprim
144
$1,697
$12
Acetazolamide
18
$1,491
$83
Diclofenac
119
$1,425
$12
Fluorometholone
17
$1,357
$80
Betaxolol
12
$1,213
$101
Valacyclovir
13
$610
$47
Levobunolol
42
$543
$13
Ketorolac Tromethamine
14
$287
$21
Erythromycin
11
$227
$21
2017: 22 drugs
Part D drugs prescribed in 2017
Timoptic Ocudose
34
$37,319
$1,098
Lumigan
74
$26,670
$360
Prednisolone Acetate
369
$26,275
$71
Azopt
59
$23,657
$401
Brimonidine
404
$20,741
$51
Travatan Z
48
$18,421
$384
Alphagan P
39
$17,984
$461
Dorzolamide-Timolol
540
$13,847
$26
Latanoprost
550
$13,395
$24
Timolol Maleate
146
$4,649
$32
Acetazolamide
21
$2,926
$139
Dorzolamide
105
$2,555
$24
Betaxolol
20
$1,649
$82
Pilocarpine
14
$1,513
$108
Fluorometholone
20
$1,479
$74
Diclofenac
101
$1,352
$13
Polymyxin B Sul-Trimethoprim
107
$1,046
$10
Ofloxacin
40
$847
$21
Valacyclovir
14
$808
$58
Levobunolol
49
$635
$13
Acyclovir
12
$365
$30
Erythromycin
15
$360
$24
2016: 23 drugs
Part D drugs prescribed in 2016
Timoptic Ocudose
57
$52,029
$913
Prednisolone Acetate
339
$24,850
$73
Lumigan
79
$23,931
$303
Travatan Z
64
$21,223
$332
Azopt
59
$19,902
$337
Brimonidine
369
$17,858
$48
Alphagan P
31
$15,303
$494
Dorzolamide-Timolol
519
$13,561
$26
Latanoprost
538
$12,350
$23
Restasis
12
$5,170
$431
Timolol Maleate
136
$3,927
$29
Cosopt Pf
13
$2,877
$221
Diclofenac
156
$2,298
$15
Fluorometholone
31
$1,951
$63
Dorzolamide
74
$1,927
$26
Zymaxid
25
$1,873
$75
Pilocarpine
15
$1,703
$114
Ofloxacin
120
$1,665
$14
Betaxolol
14
$1,174
$84
Valacyclovir
15
$1,126
$75
Levobunolol
58
$829
$14
Acyclovir
17
$569
$33
Erythromycin
26
$477
$18
2015: 22 drugs
Part D drugs prescribed in 2015
Prednisolone Acetate
353
$25,973
$74
Timoptic Ocudose
32
$20,290
$634
Lumigan
70
$18,684
$267
Travatan Z
54
$14,241
$264
Latanoprost
492
$11,303
$23
Brimonidine
215
$8,717
$41
Azopt
33
$6,899
$209
Alphagan P
18
$5,620
$312
Timolol Maleate
81
$4,859
$60
Dorzolamide-Timolol
213
$4,196
$20
Pilocarpine
29
$3,306
$114
Diclofenac
209
$3,123
$15
Acetazolamide
13
$2,049
$158
Doxycycline Monohydrate
17
$1,478
$87
Ofloxacin
173
$1,445
$8
Valacyclovir
15
$1,046
$70
Betaxolol
11
$850
$77
Dorzolamide
33
$707
$21
Acyclovir
18
$686
$38
Erythromycin
32
$586
$18
Levobunolol
32
$365
$11
Fluorometholone
13
$338
$26
2014: 22 drugs
Part D drugs prescribed in 2014
Prednisolone Acetate
424
$30,373
$72
Lumigan
81
$26,964
$333
Travatan Z
95
$21,944
$231
Brimonidine
328
$15,697
$48
Timoptic Ocudose
21
$13,063
$622
Alphagan P
40
$12,603
$315
Dorzolamide-Timolol
425
$12,166
$29
Latanoprost
477
$10,968
$23
Azopt
46
$8,650
$188
Timolol Maleate
134
$7,828
$58
Acetazolamide
28
$6,099
$218
Pilocarpine
29
$3,339
$115
Diclofenac
210
$3,114
$15
Dorzolamide
90
$2,642
$29
Durezol
11
$1,742
$158
Ofloxacin
196
$1,650
$8
Betaxolol
12
$1,038
$86
Doxycycline Monohydrate
11
$1,001
$91
Valacyclovir
12
$940
$78
Acyclovir
19
$607
$32
Levobunolol
39
$556
$14
Erythromycin
22
$465
$21
2013: 22 drugs
Part D drugs prescribed in 2013
Lumigan
87
$27,041
$311
Travatan Z
97
$22,458
$232
Dorzolamide-Timolol
365
$15,775
$43
Brimonidine
242
$14,117
$58
Alphagan P
41
$12,935
$315
Prednisolone Acetate
350
$10,286
$29
Latanoprost
340
$7,995
$24
Timoptic Ocudose
11
$7,440
$676
Azopt
41
$6,711
$164
Acetazolamide
14
$4,197
$300
Timolol Maleate
129
$3,958
$31
Restasis
11
$3,402
$309
Dorzolamide
84
$3,288
$39
Diclofenac
190
$2,774
$15
Pilocarpine
26
$2,594
$100
Doxycycline Hyclate
16
$1,591
$99
Zymaxid
18
$1,548
$86
Ofloxacin
166
$1,403
$8
Betaxolol
14
$885
$63
Acyclovir
15
$527
$35
Erythromycin
20
$396
$20
Levobunolol
20
$322
$16
Money from drug and device companies
$110 in 2025
Industry payments by year
2025
1
2
—None
$110
2024
2
2
—None
$110
2023
1
3
—None
$232
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.