Lydia Hsu, MD | UniHealth

Offices

1 location · Permanente Medical Group Inc · 10,928 clinicians in this group

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Plans that list them

4 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Hsu’s office at (650) 299-2000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

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Plans whose provider directory lists this clinician

Kaiser Permanente Dual Complete North P2 (HMO D-SNP)	Kaiser Permanente	Listed	Sep 1, 2026
Kaiser Permanente Dual Complete North P23 (HMO D-SNP)	Kaiser Permanente	Listed	Sep 1, 2026
Kaiser Permanente Sr Adv Basic Santa Clara (HMO)	Kaiser Permanente	Listed	Sep 1, 2026
Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO)	Kaiser Permanente	Listed	Sep 1, 2026

California Medical Board record

Licence A108514 · Current

Licensed to practise in California · since 2009 · expires 2026-12-31 · University of Cincinnati College of Medicine.

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

Original Medicare doctor bills

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

Procedures Medicare counted

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Procedure volume Medicare published

Cataract surgery	1-10	None

Year by year

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Original Medicare by year

2023	15	32	74	1.85	$4,638	$1,218
2022	15	45	73	1.07	$24,735	$5,173

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.

Drugs they prescribed that Part D paid

$219,696

Pharmacies billed $219,696 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

2,617 generic and 579 brand-name prescriptions · $219,696 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.

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Largest Part D drug costs

Rhopressa	74	$47,816	$646
Vyzulta	47	$27,125	$577
Tafluprost	92	$21,532	$234
Prednisolone Acetate	259	$13,275	$51
Dorzolamide-Timolol	521	$12,896	$25

See all 27 drugs

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Every Part D drug this clinician prescribed

Rhopressa	74	$47,816	$646
Vyzulta	47	$27,125	$577
Tafluprost	92	$21,532	$234
Prednisolone Acetate	259	$13,275	$51
Dorzolamide-Timolol	521	$12,896	$25
Brinzolamide	42	$12,443	$296
Dorzolamide-Timolol	66	$12,334	$187
Bimatoprost	106	$10,837	$102
Latanoprost	774	$10,835	$14
Timolol Maleate	40	$6,275	$157
Brimonidine	305	$5,305	$17
Timolol Maleate	272	$4,363	$16
Lumigan	11	$3,704	$337
Pilocarpine	100	$3,344	$33
Cyclosporine	34	$3,111	$92
Dorzolamide	83	$1,957	$24
Betaxolol	15	$1,548	$103
Polymyxin B Sul-Trimethoprim	112	$1,366	$12
Travoprost	15	$1,184	$79
Levobunolol	14	$641	$46
Ofloxacin	36	$570	$16
Dexamethasone Sodium Phosphate	12	$568	$47
Ketorolac Tromethamine	25	$360	$14
Neomycin-Polymyxin-Dexameth	19	$227	$12
Erythromycin	15	$203	$14
Acetazolamide	14	$196	$14
Diclofenac	15	$189	$13

Year by year

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Part D prescribing by year

2024	3,196	597	None	18%	$219,696
2023	3,196	621	0% (0)	18%	$204,207
2022	3,149	553	0% (0)	24%	$214,430
2021	2,884	531	0% (0)	17%	$192,710
2020	2,735	484	0% (0)	16%	$176,195
2019	2,928	539	0% (0)	17%	$164,870
2018	2,043	453	None	14%	$91,907
2017	2,087	438	None	18%	$92,728
2016	1,810	420	0% (0)	20%	$80,491
2015	1,943	447	0% (0)	None	$98,770
2014	2,248	432	None	20%	$113,797
2013	2,013	424	0% (0)	30%	$98,229

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

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Part D drugs prescribed in 2023

Rhopressa	55	$35,878	$652
Vyzulta	62	$31,317	$505
Dorzolamide-Timolol	491	$12,561	$26
Prednisolone Acetate	246	$12,173	$49
Bimatoprost	78	$11,406	$146
Latanoprost	787	$11,077	$14
Dorzolamide-Timolol	35	$10,116	$289
Timolol Maleate	28	$9,314	$333
Brinzolamide	24	$7,805	$325
Tafluprost	40	$6,899	$172
Brimonidine	333	$5,049	$15
Lumigan	11	$4,814	$438
Cyclosporine	40	$4,246	$106
Timolol Maleate	260	$4,112	$16
Pilocarpine	74	$3,450	$47
Dorzolamide	134	$3,331	$25
Difluprednate	20	$3,322	$166
Phenylephrine	49	$2,389	$49
Fluorometholone	15	$2,125	$142
Travoprost	13	$1,673	$129
Polymyxin B Sul-Trimethoprim	107	$1,217	$11
Ofloxacin	72	$1,093	$15
Betaxolol	12	$929	$77
Levobunolol	22	$796	$36
Ketorolac Tromethamine	47	$608	$13
Neomycin-Polymyxin-Dexameth	21	$282	$13
Acetazolamide	12	$246	$21
Bacitracin-Polymyxin	14	$246	$18
Diclofenac	11	$146	$13

2022: 29 drugs

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Part D drugs prescribed in 2022

Rhopressa	52	$34,054	$655
Vyzulta	44	$18,396	$418
Bimatoprost	107	$13,422	$125
Dorzolamide-Timolol	40	$13,244	$331
Cequa	34	$13,070	$384
Latanoprost	793	$13,026	$16
Zioptan	30	$12,026	$401
Timolol Maleate	32	$11,288	$353
Prednisolone Acetate	248	$11,185	$45
Dorzolamide-Timolol	432	$11,144	$26
Timolol Maleate	279	$6,487	$23
Brinzolamide	26	$6,399	$246
Brimonidine	306	$4,894	$16
Pilocarpine	60	$4,656	$78
Phenylephrine	101	$3,679	$36
Dorzolamide	115	$2,954	$26
Fluorometholone	22	$2,337	$106
Difluprednate	14	$2,056	$147
Polymyxin B Sul-Trimethoprim	133	$1,509	$11
Travoprost	18	$1,142	$63
Levobunolol	20	$904	$45
Acetazolamide	20	$603	$30
Acyclovir	11	$441	$40
Ketorolac Tromethamine	36	$424	$12
Olopatadine	12	$312	$26
Ofloxacin	27	$311	$12
Bacitracin-Polymyxin	14	$246	$18
Diclofenac	17	$243	$14
Neomycin-Polymyxin-Dexameth	12	$151	$13

2021: 27 drugs

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Part D drugs prescribed in 2021

Rhopressa	42	$25,637	$610
Cequa	35	$17,567	$502
Dorzolamide-Timolol	50	$17,395	$348
Latanoprost	814	$14,398	$18
Dorzolamide-Timolol	428	$12,482	$29
Lumigan	23	$11,356	$494
Zioptan	32	$10,528	$329
Prednisolone Acetate	150	$10,448	$70
Vyzulta	18	$9,136	$508
Timolol Maleate	232	$6,271	$27
Pilocarpine	69	$5,481	$79
Brimonidine	317	$5,084	$16
Timolol Maleate	13	$4,951	$381
Bimatoprost	29	$4,724	$163
Dorzolamide	156	$4,203	$27
Phenylephrine	61	$3,639	$60
Methazolamide	17	$2,056	$121
Fluorometholone	12	$1,297	$108
Levobunolol	23	$992	$43
Polymyxin B Sul-Trimethoprim	85	$979	$12
Ketorolac Tromethamine	38	$618	$16
Acetazolamide	12	$600	$50
Acetazolamide Er	19	$548	$29
Acyclovir	14	$459	$33
Neomycin-Polymyxin-Dexameth	32	$372	$12
Olopatadine	17	$286	$17
Ofloxacin	20	$284	$14

2020: 28 drugs

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Part D drugs prescribed in 2020

Rhopressa	46	$23,024	$501
Lumigan	33	$17,829	$540
Latanoprost	861	$17,509	$20
Dorzolamide-Timolol	416	$15,033	$36
Timoptic Ocudose	25	$14,140	$566
Zioptan	43	$13,037	$303
Restasis	18	$10,963	$609
Dorzolamide-Timolol	38	$8,908	$234
Azopt	12	$6,245	$520
Prednisolone Acetate	113	$5,637	$50
Brimonidine	362	$5,608	$15
Timolol Maleate	200	$5,212	$26
Dorzolamide	152	$4,749	$31
Pilocarpine	36	$3,619	$101
Cosopt Pf	11	$3,075	$280
Methazolamide	13	$2,316	$178
Phenylephrine	39	$2,026	$52
Levobunolol	34	$1,137	$33
Polymyxin B Sul-Trimethoprim	58	$693	$12
Acyclovir	18	$567	$31
Acetazolamide Er	16	$482	$30
Diclofenac	21	$340	$16
Olopatadine	14	$313	$22
Neomycin-Polymyxin-Dexameth	18	$230	$13
Erythromycin	12	$200	$17
Ketorolac Tromethamine	12	$197	$16
Simvastatin	11	$50	$5
Atenolol	12	$49	$4

2019: 30 drugs

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Part D drugs prescribed in 2019

Rhopressa	66	$24,121	$365
Latanoprost	891	$16,102	$18
Dorzolamide-Timolol	398	$15,693	$39
Timoptic Ocudose	26	$12,782	$492
Lumigan	29	$11,999	$414
Restasis	18	$10,391	$577
Zioptan	24	$8,577	$357
Prednisolone Acetate	149	$8,143	$55
Dorzolamide-Timolol	32	$6,836	$214
Brimonidine	335	$5,033	$15
Azopt	11	$4,988	$453
Dorzolamide	168	$4,878	$29
Timolol Maleate	223	$4,690	$21
Travatan Z	11	$3,926	$357
Phenylephrine	65	$3,220	$50
Rivastigmine	11	$2,364	$215
Pilocarpine	35	$1,992	$57
Polymyxin B Sul-Trimethoprim	92	$1,095	$12
Valacyclovir	14	$891	$64
Dexamethasone Sodium Phosphate	13	$773	$59
Acyclovir	23	$675	$29
Acetazolamide Er	26	$669	$26
Neomycin-Polymyxin-Dexameth	29	$529	$18
Olopatadine	20	$492	$25
Levobunolol	39	$471	$12
Ofloxacin	17	$317	$19
Memantine	11	$263	$24
Diclofenac	16	$243	$15
Simvastatin	12	$55	$5
Atenolol	11	$45	$4

2018: 19 drugs

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Part D drugs prescribed in 2018

Latanoprost	669	$14,207	$21
Lumigan	35	$13,025	$372
Timoptic Ocudose	16	$6,877	$430
Dorzolamide-Timolol	311	$6,536	$21
Prednisolone Acetate	94	$6,389	$68
Rhopressa	16	$6,080	$380
Azopt	15	$5,416	$361
Brimonidine	265	$3,671	$14
Dorzolamide	140	$3,647	$26
Timolol Maleate	181	$2,288	$13
Pilocarpine	22	$1,661	$75
Phenylephrine	30	$1,214	$40
Acyclovir	24	$621	$26
Polymyxin B Sul-Trimethoprim	42	$491	$12
Neomycin-Polymyxin-Dexameth	22	$431	$20
Levobunolol	31	$341	$11
Ofloxacin	14	$333	$24
Olopatadine	13	$209	$16
Erythromycin	12	$207	$17

2017: 21 drugs

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Part D drugs prescribed in 2017

Lumigan	39	$13,609	$349
Latanoprost	647	$12,711	$20
Restasis	15	$8,321	$555
Dorzolamide-Timolol	310	$6,608	$21
Prednisolone Acetate	91	$6,245	$69
Pilocarpine	63	$5,033	$80
Azopt	16	$4,942	$309
Timoptic Ocudose	11	$4,728	$430
Brimonidine	247	$3,444	$14
Zioptan	12	$3,247	$271
Dorzolamide	132	$2,811	$21
Timolol Maleate	205	$2,644	$13
Acetazolamide	15	$1,437	$96
Fluorometholone	13	$1,390	$107
Phenylephrine	27	$1,109	$41
Acyclovir	23	$840	$37
Levobunolol	53	$583	$11
Neomycin-Polymyxin-Dexameth	23	$455	$20
Polymyxin B Sul-Trimethoprim	45	$421	$9
Ofloxacin	13	$352	$27
Olopatadine	12	$221	$18

2016: 19 drugs

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Part D drugs prescribed in 2016

Lumigan	32	$9,983	$312
Latanoprost	524	$9,735	$19
Restasis	21	$9,068	$432
Prednisolone Acetate	108	$7,426	$69
Dorzolamide-Timolol	244	$4,993	$20
Azopt	18	$4,587	$255
Brimonidine	203	$3,612	$18
Pilocarpine	49	$3,451	$70
Dorzolamide	134	$2,791	$21
Timolol Maleate	175	$2,437	$14
Phenylephrine	33	$1,133	$34
Zymaxid	13	$849	$65
Fluorometholone	14	$769	$55
Ofloxacin	46	$705	$15
Acyclovir	19	$612	$32
Levobunolol	41	$533	$13
Neomycin-Polymyxin-Dexameth	13	$268	$21
Tropicamide	34	$208	$6
Polymyxin B Sul-Trimethoprim	12	$112	$9

2015: 17 drugs

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Part D drugs prescribed in 2015

Restasis	34	$15,427	$454
Latanoprost	593	$10,716	$18
Lumigan	36	$10,585	$294
Azopt	43	$9,901	$230
Prednisolone Acetate	113	$7,850	$69
Brimonidine	203	$4,167	$21
Travatan Z	14	$3,617	$258
Dorzolamide-Timolol	192	$3,367	$18
Dorzolamide	168	$3,155	$19
Pilocarpine	39	$3,080	$79
Timolol Maleate	164	$2,170	$13
Valacyclovir	15	$1,664	$111
Acyclovir	22	$1,156	$53
Levobunolol	57	$671	$12
Neomycin-Polymyxin-Dexameth	33	$633	$19
Ofloxacin	65	$543	$8
Tropicamide	28	$162	$6

2014: 24 drugs

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Part D drugs prescribed in 2014

Restasis	23	$13,020	$566
Lumigan	29	$12,021	$415
Prednisolone Acetate	167	$10,782	$65
Latanoprost	548	$10,238	$19
Azopt	44	$8,532	$194
Brimonidine	289	$6,056	$21
Dorzolamide	203	$4,506	$22
Acetazolamide	39	$4,456	$114
Dorzolamide-Timolol	164	$3,806	$23
Valacyclovir	32	$3,594	$112
Travatan Z	14	$3,283	$235
Timolol Maleate	176	$2,814	$16
Acyclovir	39	$1,753	$45
Zymaxid	15	$1,412	$94
Betoptic S	11	$1,203	$109
Levobunolol	95	$1,200	$13
Pilocarpine	13	$854	$66
Ofloxacin	98	$822	$8
Neomycin-Polymyxin-Dexameth	35	$692	$20
Phenylephrine	32	$512	$16
Tropicamide	55	$319	$6
Erythromycin	13	$257	$20
Dexamethasone Sodium Phosphate	16	$234	$15
Polymyxin B Sul-Trimethoprim	15	$140	$9

2013: 21 drugs

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Part D drugs prescribed in 2013

Restasis	23	$9,289	$404
Lumigan	26	$9,245	$356
Latanoprost	475	$8,718	$18
Zymaxid	104	$7,542	$73
Azopt	41	$6,685	$163
Acetazolamide	35	$5,280	$151
Dorzolamide-Timolol	114	$4,449	$39
Prednisolone Acetate	172	$4,323	$25
Brimonidine	224	$4,134	$18
Dorzolamide	138	$3,768	$27
Timolol Maleate	138	$2,239	$16
Acyclovir	43	$2,070	$48
Valacyclovir	14	$1,743	$125
Levobunolol	104	$1,408	$14
Phenylephrine	70	$865	$12
Pilocarpine	11	$678	$62
Neomycin-Polymyxin-Dexameth	27	$545	$20
Ofloxacin	51	$429	$8
Tropicamide	70	$413	$6
Erythromycin	19	$376	$20
Diclofenac	16	$234	$15

Money from drug and device companies

$321 in 2025

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Industry payments by year

2025	2	4	None	$321
2024	1	2	None	$61
2023	1	1	None	$144

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

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Payments by company

Alcon Vision	Hydrus Microstent	$179	2 payments Meals for Hydrus Microstent · 2025-11-14 · $144 Meals for Clareon · 2025-05-07 · $35
RxSight	Rxsight Contact Lens	$142	2 payments Meals for Rxsight Contact Lens · 2025-05-07 · $117 Meals for Rxsight Contact Lens · 2025-05-07 · $25

See all 4 published payments

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Every published payment

Alcon Vision	Meals · 2025-11-14	Hydrus Microstent	$144
Alcon Vision	Meals · 2025-05-07	Clareon	$35
RxSight	Meals · 2025-05-07	Rxsight Contact Lens	$117
RxSight	Meals · 2025-05-07	Rxsight Contact Lens	$25

See earlier years (2024, 2023)

2024: $61

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Payments by company in 2024

Alcon Vision	Centurion	$61	2 payments Meals for Hydrus Microstent · 2024-11-20 · $25 Meals for Centurion · 2024-05-08 · $37

2023: $144

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Payments by company in 2023

Alcon Vision	Hydrus Microstent	$144	1 payment Meals for Hydrus Microstent · 2023-11-04 · $144

Professional record

NPI: 1356554679
Licence: CA A108514California A108514: Current · expires 2026-12-31
Trained: University of Cincinnati College of Medicine, 2005
Group: Permanente Medical Group Inc
Gender: Female

More record details

Sole proprietor: Yes
Taxonomy: Federal specialty code 207W00000X (207W00000X)
Mailing address: 900 Blake Wilbur Dr, 3rd Floor, Palo Alto, CA, 94304
NPI first listed: 2007-05-07
NPI last updated: 2022-02-11

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

This office lists an electronic records connection.