A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Koo’s office at (408) 851-1000 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
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 3% of their Part D prescriptions (85 of 3,171) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%.
2,897 generic and 247 brand-name prescriptions · $173,464 in drug cost · 80 antibiotic prescriptions to 64 people.
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
Ozempic
54
$39,981
$740
Jardiance
23
$12,368
$538
Spiriva Respimat
16
$8,862
$554
Wixela Inhub
27
$5,065
$188
Terazosin
73
$4,225
$58
See all 68 drugs
Every Part D drug this clinician prescribed
Ozempic
54
$39,981
$740
Jardiance
23
$12,368
$538
Spiriva Respimat
16
$8,862
$554
Wixela Inhub
27
$5,065
$188
Terazosin
73
$4,225
$58
Alvesco
29
$3,949
$136
Atorvastatin
195
$2,605
$13
Tamsulosin
126
$2,280
$18
Pantoprazole
51
$1,799
$35
Losartan
143
$1,707
$12
Lisinopril
131
$1,589
$12
Amlodipine Besylate
94
$1,475
$16
Gabapentin
65
$1,395
$21
Allopurinol
92
$1,230
$13
Furosemide
76
$1,156
$15
Levothyroxine
64
$1,138
$18
Fluticasone Propionate
49
$909
$19
Potassium Chloride
20
$877
$44
Adacel Tdap
17
$867
$51
Atenolol
73
$813
$11
Ipratropium
38
$805
$21
Colchicine
46
$774
$17
Hydrochlorothiazide
63
$735
$12
Simvastatin
62
$712
$11
Rosuvastatin
57
$665
$12
Clopidogrel
23
$655
$28
Albuterol Sulfate Hfa
36
$652
$18
Pravastatin
29
$646
$22
Metformin Hcl Er
69
$622
$9
Famotidine
37
$605
$16
Finasteride
37
$575
$16
Lisinopril-Hydrochlorothiazide
38
$498
$13
Metformin
42
$483
$12
Trazodone
29
$468
$16
Pregabalin
28
$463
$17
Prazosin
12
$455
$38
Fenofibrate
22
$433
$20
Bupropion Xl
13
$413
$32
Hydralazine
16
$399
$25
Losartan-Hydrochlorothiazide
34
$390
$11
Metoprolol
34
$382
$11
Metoprolol
39
$366
$9
Lorazepam
25
$364
$15
Spironolactone
27
$339
$13
Clobetasol Propionate
15
$331
$22
Glipizide Er
14
$330
$24
Hydrocodone-Acetaminophen
32
$322
$10
Omeprazole
21
$316
$15
Ibuprofen
22
$299
$14
Ropinirole
27
$290
$11
Warfarin
18
$239
$13
Glipizide
19
$218
$11
Triamcinolone Acetonide
24
$217
$9
Oxybutynin Chloride Er
12
$215
$18
Alendronate
22
$206
$9
Hydrocortisone
15
$201
$13
Chlorthalidone
14
$197
$14
Sumatriptan
14
$157
$11
Tizanidine
14
$154
$11
Sertraline
11
$152
$14
Ezetimibe
12
$140
$12
Lovastatin
12
$140
$12
Ondansetron Odt
12
$128
$11
Cefadroxil
11
$116
$11
Oxycodone
14
$103
$7
Azithromycin
15
$96
$6
Meloxicam
11
$79
$7
Clonazepam
13
$77
$6
Year by year
Part D prescribing by year
2024
3,171
298
3% (85)
8%
$173,464
2023
2,632
310
3% (67)
8%
$142,581
2022
2,186
324
3% (64)
9%
$83,174
2021
2,157
281
4% (84)
10%
$95,994
2020
1,927
225
4% (79)
11%
$79,696
2019
1,780
235
4% (74)
12%
$72,585
2018
1,618
230
4% (69)
19%
$76,607
2017
1,678
193
5% (75)
19%
$81,289
2016
1,553
181
6% (89)
23%
$74,371
2015
1,458
197
6% (86)
27%
$78,053
2014
1,134
229
6% (68)
22%
$53,713
2013
1,445
207
8% (119)
23%
$69,390
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 61 drugs
Part D drugs prescribed in 2023
Ozempic
29
$22,051
$760
Jardiance
15
$14,276
$952
Wixela Inhub
25
$4,448
$178
Terazosin
62
$3,438
$55
Alvesco
30
$3,003
$100
Humulin N
19
$2,752
$145
Atorvastatin
173
$2,599
$15
Lisinopril
130
$1,578
$12
Tamsulosin
82
$1,537
$19
Pantoprazole
41
$1,493
$36
Losartan
119
$1,413
$12
Gabapentin
44
$1,112
$25
Levothyroxine
53
$1,104
$21
Amlodipine Besylate
82
$1,035
$13
Furosemide
56
$936
$17
Atenolol
79
$883
$11
Allopurinol
62
$795
$13
Hydrochlorothiazide
69
$766
$11
Pravastatin
26
$705
$27
Lisinopril-Hydrochlorothiazide
44
$601
$14
Simvastatin
52
$584
$11
Metformin
46
$564
$12
Colchicine
31
$561
$18
Clobetasol Propionate
25
$555
$22
Fluocinonide
13
$529
$41
Prazosin
17
$517
$30
Hydrocortisone
18
$503
$28
Rosuvastatin
38
$443
$12
Albuterol Sulfate Hfa
26
$439
$17
Hydralazine
22
$426
$19
Glipizide
35
$416
$12
Metoprolol
38
$412
$11
Trazodone
27
$394
$15
Metoprolol
26
$391
$15
Fenofibrate
19
$387
$20
Fluticasone Propionate
28
$373
$13
Pregabalin
15
$362
$24
Metformin Hcl Er
40
$347
$9
Chlorthalidone
11
$340
$31
Finasteride
20
$310
$16
Glipizide Er
12
$306
$26
Famotidine
26
$286
$11
Losartan-Hydrochlorothiazide
21
$245
$12
Veo Insulin
15
$243
$16
Paxlovid (Eua)
14
$231
$17
Ibuprofen
17
$225
$13
Spironolactone
18
$220
$12
Triamcinolone Acetonide
22
$208
$9
Hydrocodone-Acetaminophen
22
$201
$9
Doxazosin Mesylate
11
$172
$16
Alendronate
18
$172
$10
Ropinirole
12
$171
$14
Tramadol
18
$165
$9
Nitrofurantoin Mono-Macro
11
$146
$13
Lovastatin
12
$140
$12
Omeprazole
14
$138
$10
Azithromycin
20
$137
$7
Carvedilol
11
$128
$12
Celecoxib
12
$115
$10
Sulfamethoxazole-Trimethoprim
16
$99
$6
Lorazepam
13
$94
$7
2022: 51 drugs
Part D drugs prescribed in 2022
Wixela Inhub
24
$4,163
$173
Humulin N
23
$3,081
$134
Alvesco
33
$2,866
$87
Terazosin
53
$2,485
$47
Atorvastatin
134
$1,782
$13
Tamsulosin
82
$1,718
$21
Gabapentin
29
$1,211
$42
Lisinopril
104
$1,207
$12
Losartan
94
$1,124
$12
Atenolol
85
$961
$11
Levothyroxine
42
$929
$22
Allopurinol
54
$919
$17
Fluocinonide
13
$848
$65
Hydrochlorothiazide
73
$806
$11
Amlodipine Besylate
63
$757
$12
Prazosin
13
$692
$53
Simvastatin
60
$680
$11
Lisinopril-Hydrochlorothiazide
47
$630
$13
Hydrocortisone
23
$629
$27
Albuterol Sulfate Hfa
36
$622
$17
Colchicine
26
$545
$21
Losartan-Hydrochlorothiazide
19
$516
$27
Metformin
41
$491
$12
Trazodone
22
$478
$22
Glipizide
40
$465
$12
Paxlovid (Eua)
29
$461
$16
Metoprolol
20
$415
$21
Furosemide
25
$405
$16
Metformin Hcl Er
38
$367
$10
Hydralazine
21
$365
$17
Finasteride
23
$361
$16
Metoprolol
33
$351
$11
Fenofibrate
11
$329
$30
Ibuprofen
20
$313
$16
Rosuvastatin
26
$303
$12
Veo Insulin
16
$281
$18
Lovastatin
20
$261
$13
Pantoprazole
17
$248
$15
Ropinirole
16
$244
$15
Fluticasone Propionate
16
$211
$13
Hydrocodone-Acetaminophen
24
$210
$9
Triamcinolone Acetonide
21
$198
$9
Nitrofurantoin Mono-Macro
14
$185
$13
Omeprazole
19
$180
$9
Alendronate
17
$166
$10
Famotidine
14
$160
$11
Tramadol
16
$150
$9
Spironolactone
12
$147
$12
Carvedilol
12
$140
$12
Meloxicam
18
$138
$8
Azithromycin
13
$91
$7
2021: 51 drugs
Part D drugs prescribed in 2021
Alvesco
44
$3,928
$89
Wixela Inhub
16
$2,324
$145
Humulin N
18
$2,083
$116
Atorvastatin
146
$1,898
$13
Terazosin
45
$1,783
$40
Tamsulosin
74
$1,389
$19
Lisinopril
106
$1,287
$12
Losartan
89
$1,225
$14
Atenolol
111
$1,203
$11
Levothyroxine
45
$1,103
$25
Amlodipine Besylate
81
$999
$12
Fentanyl
11
$919
$84
Allopurinol
40
$890
$22
Simvastatin
75
$860
$11
Ventolin Hfa
13
$723
$56
Hydrochlorothiazide
63
$720
$11
Fluocinonide
12
$617
$51
Glipizide
49
$581
$12
Lisinopril-Hydrochlorothiazide
42
$578
$14
Gabapentin
27
$576
$21
Clobetasol Propionate
11
$551
$50
Esomeprazole Magnesium
12
$521
$43
Prazosin
11
$490
$45
Furosemide
34
$487
$14
Hydrocodone-Acetaminophen
33
$485
$15
Metformin
42
$480
$11
Finasteride
19
$476
$25
Hydralazine
24
$436
$18
Omeprazole
24
$427
$18
Losartan-Hydrochlorothiazide
12
$392
$33
Albuterol Sulfate Hfa
21
$390
$19
Metoprolol
38
$378
$10
Trazodone
20
$357
$18
Metformin Hcl Er
35
$331
$9
Fluticasone Propionate
26
$326
$13
Warfarin
15
$295
$20
Rosuvastatin
22
$257
$12
Lovastatin
20
$250
$13
Nitrofurantoin Mono-Macro
16
$238
$15
Pantoprazole
11
$207
$19
Veo Insulin
14
$205
$15
Ibuprofen
12
$192
$16
Zolpidem
25
$188
$8
Ropinirole
13
$168
$13
Hydromorphone
11
$163
$15
Triamcinolone Acetonide
16
$157
$10
Tramadol
11
$147
$13
Famotidine
13
$140
$11
Spironolactone
12
$115
$10
Oxycodone-Acetaminophen
11
$87
$8
Meloxicam
12
$82
$7
2020: 46 drugs
Part D drugs prescribed in 2020
Advair Diskus
22
$4,786
$218
Humulin N
18
$2,653
$147
Alvesco
31
$2,450
$79
Fentanyl
18
$2,256
$125
Atorvastatin
141
$2,028
$14
Terazosin
42
$1,413
$34
Tamsulosin
61
$1,252
$21
Lisinopril
92
$1,043
$11
Atenolol
94
$976
$10
Simvastatin
81
$930
$11
Losartan
69
$923
$13
Levothyroxine
34
$919
$27
Amlodipine Besylate
75
$889
$12
Allopurinol
40
$785
$20
Ventolin Hfa
16
$771
$48
Hydrochlorothiazide
52
$584
$11
Prazosin
11
$515
$47
Lisinopril-Hydrochlorothiazide
39
$514
$13
Hydrocortisone
14
$467
$33
Finasteride
19
$445
$23
Hydrocodone-Acetaminophen
23
$438
$19
Gabapentin
16
$432
$27
Fluticasone Propionate
34
$427
$13
Omeprazole
18
$425
$24
Furosemide
31
$422
$14
Metformin
33
$401
$12
Glipizide
34
$396
$12
Fenofibrate
11
$358
$33
Metformin Hcl Er
39
$339
$9
Ibuprofen
18
$305
$17
Lovastatin
24
$283
$12
Metoprolol
33
$279
$8
Veo Insulin
17
$234
$14
Trazodone
16
$224
$14
Hydralazine
17
$222
$13
Rosuvastatin
17
$222
$13
Warfarin
12
$180
$15
Tramadol
16
$178
$11
Zolpidem
20
$177
$9
Clopidogrel
11
$176
$16
Carvedilol
12
$140
$12
Triamterene-Hydrochlorothiazid
12
$122
$10
Famotidine
13
$110
$8
Ropinirole
11
$105
$10
Lorazepam
13
$79
$6
Meloxicam
12
$74
$6
2019: 39 drugs
Part D drugs prescribed in 2019
Atorvastatin
135
$2,798
$21
Alvesco
23
$2,124
$92
Fentanyl
14
$1,819
$130
Terazosin
55
$1,777
$32
Testosterone
11
$1,727
$157
Humulin N
12
$1,641
$137
Tamsulosin
61
$1,337
$22
Ventolin Hfa
26
$1,335
$51
Allopurinol
38
$1,123
$30
Lisinopril
99
$1,117
$11
Atenolol
84
$1,055
$13
Simvastatin
89
$1,014
$11
Levothyroxine
29
$843
$29
Amlodipine Besylate
62
$680
$11
Losartan
51
$612
$12
Finasteride
18
$580
$32
Lisinopril-Hydrochlorothiazide
43
$529
$12
Prazosin
11
$515
$47
Ranitidine
20
$504
$25
Hydrochlorothiazide
42
$485
$12
Furosemide
33
$443
$13
Gabapentin
12
$438
$36
Hydrocodone-Acetaminophen
33
$431
$13
Omeprazole
16
$424
$27
Ibuprofen
24
$399
$17
Lovastatin
31
$381
$12
Hydralazine
14
$351
$25
Clopidogrel
18
$344
$19
Fluticasone Propionate
25
$319
$13
Glipizide
26
$298
$11
Metformin
24
$296
$12
Metoprolol
31
$293
$9
Metformin Hcl Er
33
$283
$9
Zolpidem
19
$226
$12
Rosuvastatin
11
$216
$20
Triamcinolone Acetonide
16
$191
$12
Triamterene-Hydrochlorothiazid
13
$132
$10
Carvedilol
11
$128
$12
Azithromycin
15
$115
$8
2018: 39 drugs
Part D drugs prescribed in 2018
Lyrica
15
$9,716
$648
Chantix
14
$6,182
$442
Atorvastatin
120
$2,910
$24
Qvar
21
$2,011
$96
Terazosin
57
$1,498
$26
Allopurinol
34
$1,149
$34
Ventolin Hfa
22
$1,056
$48
Tamsulosin
38
$1,047
$28
Losartan
57
$1,041
$18
Lisinopril
87
$1,025
$12
Atenolol
70
$852
$12
Simvastatin
70
$773
$11
Omeprazole
19
$767
$40
Diclofenac
11
$600
$55
Levothyroxine
20
$580
$29
Ranitidine
15
$535
$36
Ibuprofen
21
$482
$23
Gabapentin
15
$455
$30
Hydrocodone-Acetaminophen
26
$448
$17
Trazodone
28
$435
$16
Furosemide
29
$406
$14
Lisinopril-Hydrochlorothiazide
34
$403
$12
Amlodipine Besylate
50
$399
$8
Hydrochlorothiazide
33
$370
$11
Lovastatin
31
$361
$12
Metformin Hcl Er
30
$356
$12
Clopidogrel
11
$313
$28
Fluticasone Propionate
24
$306
$13
Metoprolol
29
$280
$10
Glipizide
20
$267
$13
Hydralazine
12
$265
$22
Metformin
23
$253
$11
Triamcinolone Acetonide
11
$190
$17
Zolpidem
15
$172
$11
Carvedilol
13
$152
$12
Tramadol
15
$134
$9
Azithromycin
14
$112
$8
Triamterene-Hydrochlorothiazid
12
$111
$9
Ciprofloxacin
12
$87
$7
2017: 42 drugs
Part D drugs prescribed in 2017
Lyrica
11
$6,804
$619
Chantix
13
$5,066
$390
Spiriva
11
$3,777
$343
Atorvastatin
139
$3,555
$26
Qvar
18
$1,440
$80
Losartan
58
$1,386
$24
Lisinopril
93
$1,177
$13
Humulin N
11
$1,114
$101
Levothyroxine
30
$973
$32
Simvastatin
77
$971
$13
Atenolol
77
$964
$13
Omeprazole
22
$947
$43
Allopurinol
27
$945
$35
Hydrocodone-Acetaminophen
35
$903
$26
Ventolin Hfa
15
$894
$60
Hydralazine
25
$752
$30
Ibuprofen
23
$748
$33
Tamsulosin
16
$734
$46
Terazosin
49
$719
$15
Prazosin
11
$615
$56
Amlodipine Besylate
54
$496
$9
Ranitidine
17
$442
$26
Clopidogrel
14
$425
$30
Lisinopril-Hydrochlorothiazide
33
$408
$12
Lovastatin
37
$407
$11
Nystop
14
$405
$29
Metformin Hcl Er
31
$383
$12
Famotidine
14
$341
$24
Hydrochlorothiazide
30
$340
$11
Trazodone
32
$337
$11
Quetiapine
16
$314
$20
Furosemide
22
$303
$14
Metformin
25
$285
$11
Glipizide
18
$247
$14
Warfarin
12
$193
$16
Zolpidem
14
$180
$13
Insulin
12
$179
$15
Triamcinolone Acetonide
11
$158
$14
Metoprolol
16
$140
$9
Carvedilol
12
$133
$11
Isosorbide Mononitrate Er
11
$128
$12
Tramadol
13
$114
$9
2016: 44 drugs
Part D drugs prescribed in 2016
Chantix
13
$4,119
$317
Opana Er
11
$3,711
$337
Atorvastatin
125
$3,416
$27
Spiriva Respimat
11
$2,340
$213
Hydrocodone-Acetaminophen
36
$2,033
$56
Tamsulosin
21
$1,681
$80
Losartan
51
$1,467
$29
Simvastatin
74
$1,286
$17
Levothyroxine
35
$1,254
$36
Humulin N
12
$1,187
$99
Omeprazole
23
$1,166
$51
Lisinopril
91
$1,102
$12
Qvar
13
$1,020
$78
Gabapentin
11
$907
$82
Hydralazine
16
$884
$55
Ventolin Hfa
20
$863
$43
Ibuprofen
22
$787
$36
Allopurinol
17
$732
$43
Atenolol
60
$698
$12
Amlodipine Besylate
42
$628
$15
Pravastatin
13
$510
$39
K-Tab Er
12
$506
$42
Proair Hfa
13
$449
$35
Terazosin
29
$445
$15
Clopidogrel
12
$430
$36
Metformin Hcl Er
31
$411
$13
Lovastatin
32
$379
$12
Famotidine
14
$369
$26
Lisinopril-Hydrochlorothiazide
32
$367
$11
Trazodone
25
$328
$13
Furosemide
24
$321
$13
Metformin
28
$315
$11
Glipizide
19
$282
$15
Warfarin
15
$275
$18
Insulin
12
$265
$22
Hydrochlorothiazide
23
$252
$11
Ranitidine
11
$239
$22
Quetiapine
11
$200
$18
Metoprolol
20
$197
$10
Naproxen
14
$184
$13
Insulin
14
$178
$13
Tramadol
19
$175
$9
Zolpidem
11
$130
$12
Azithromycin
13
$117
$9
2015: 38 drugs
Part D drugs prescribed in 2015
Spiriva
17
$5,549
$326
Dulera
20
$4,856
$243
Atorvastatin
107
$2,924
$27
Hydrocodone-Acetaminophen
43
$2,876
$67
Gabapentin
13
$2,160
$166
Tamsulosin
27
$1,861
$69
Losartan
48
$1,301
$27
Humulin N
13
$1,288
$99
Omeprazole
21
$1,130
$54
Simvastatin
64
$1,110
$17
Proair Hfa
32
$1,074
$34
Amlodipine Besylate
49
$1,033
$21
Lisinopril
77
$957
$12
Levothyroxine
24
$833
$35
Ibuprofen
26
$826
$32
Atenolol
49
$586
$12
Clopidogrel
11
$569
$52
Furosemide
36
$508
$14
Famotidine
22
$496
$23
Allopurinol
12
$480
$40
Fluticasone Propionate
23
$464
$20
Metformin
38
$455
$12
Carbidopa-Levodopa
11
$445
$40
Lovastatin
24
$329
$14
Hydrochlorothiazide
29
$318
$11
Trazodone
19
$314
$17
Warfarin
18
$292
$16
Metformin Hcl Er
25
$292
$12
Terazosin
20
$286
$14
Insulin
11
$273
$25
Metoprolol
26
$232
$9
Lisinopril-Hydrochlorothiazide
17
$208
$12
Glipizide
18
$207
$12
Azithromycin
16
$164
$10
Tramadol
16
$154
$10
Triamterene-Hydrochlorothiazid
14
$150
$11
Zolpidem
12
$113
$9
Meloxicam
12
$90
$8
2014: 28 drugs
Part D drugs prescribed in 2014
Spiriva
13
$3,870
$298
Zostavax
13
$2,405
$185
Atorvastatin
64
$1,702
$27
Losartan
41
$1,187
$29
Omeprazole
23
$1,089
$47
Hydrocodone-Acetaminophen
43
$1,003
$23
Simvastatin
53
$994
$19
Tamsulosin
16
$885
$55
Lisinopril
67
$861
$13
Atenolol
63
$732
$12
Amlodipine Besylate
33
$714
$22
Proair Hfa
18
$552
$31
Furosemide
35
$484
$14
Terazosin
35
$475
$14
Lovastatin
32
$462
$14
Famotidine
18
$377
$21
Allopurinol
12
$369
$31
Metformin
30
$353
$12
Fluticasone Propionate
15
$345
$23
Levothyroxine
14
$320
$23
Hydrochlorothiazide
29
$287
$10
Lisinopril-Hydrochlorothiazide
21
$248
$12
Glipizide
18
$241
$13
Ibuprofen
11
$216
$20
Warfarin
16
$208
$13
Metformin Hcl Er
14
$169
$12
Trazodone
11
$131
$12
Metoprolol
11
$127
$12
2013: 37 drugs
Part D drugs prescribed in 2013
Spiriva
21
$4,576
$218
Zostavax
17
$3,026
$178
Gabapentin
18
$2,356
$131
Atorvastatin
70
$1,875
$27
Simvastatin
72
$1,614
$22
Losartan
45
$1,429
$32
Atenolol
100
$1,118
$11
Omeprazole
23
$1,000
$43
Tamsulosin
21
$997
$47
Lisinopril
82
$985
$12
Methadone
17
$976
$57
Hydrocodone-Acetaminophen
51
$972
$19
Qvar
13
$869
$67
Amlodipine Besylate
34
$780
$23
Allopurinol
22
$748
$34
Fluticasone Propionate
27
$591
$22
Levothyroxine
23
$569
$25
Terazosin
40
$546
$14
Famotidine
22
$492
$22
Proair Hfa
16
$466
$29
Metformin
36
$427
$12
K-Tab Er
11
$419
$38
Lisinopril-Hydrochlorothiazide
30
$383
$13
Glipizide
23
$315
$14
Warfarin
21
$309
$15
Naproxen
14
$302
$22
Hydrochlorothiazide
27
$275
$10
Ibuprofen
15
$245
$16
Oxycodone-Acetaminophen
13
$200
$15
Metoprolol
15
$162
$11
Lovastatin
13
$158
$12
Ciprofloxacin
19
$148
$8
Tramadol
18
$146
$8
Trazodone
14
$141
$10
Lorazepam
12
$140
$12
Mirtazapine
11
$120
$11
Zolpidem
11
$85
$8
Professional record
NPI
1558526004
Licence
HI MDR5499
Trained
Pennsylvania State University College of Medicine, 2008