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Joyce Ann C Viloria, MD

Internal Medicine · Santa Clara

NPI 1013144724

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
4
1 carrier
Offices
2
Since medical school
17 years
University of California, San Francisco School of Medicine, 2009

Offices

2 locations · Permanente Medical Group Inc · 10,928 clinicians in this group

Looking this up.

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. Viloria’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
Kaiser Permanente Dual Complete North P2 (HMO D-SNP)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Dual Complete North P23 (HMO D-SNP)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Sr Adv Basic Santa Clara (HMO)Kaiser PermanenteListedSep 1, 2026
Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO)Kaiser PermanenteListedSep 1, 2026

Medicaid work

$0 in 2021

Medicaid paid $0 for 17 billed services this clinician did in 2021, up to 14 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 2021
Short return visit (20+ min)17$0
Medicaid work by year
202117114$0

Drugs they prescribed that Part D paid

$148,212

Pharmacies billed $148,212 in 2024.

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

Opioids were 2% of their Part D prescriptions (53 of 3,132) in 2024. Above the middle of the specialty; the typical internal medicine clinician is at 1%.

2,875 generic and 241 brand-name prescriptions · $148,212 in drug cost · 118 antibiotic prescriptions to 61 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
Spiriva Respimat18$12,860$714
Alvesco32$8,555$267
Stiolto Respimat16$8,222$514
Jardiance14$8,161$583
Pradaxa25$5,324$213
See all 67 drugs
Every Part D drug this clinician prescribed
Spiriva Respimat18$12,860$714
Alvesco32$8,555$267
Stiolto Respimat16$8,222$514
Jardiance14$8,161$583
Pradaxa25$5,324$213
Amlodipine Besylate231$3,240$14
Atorvastatin276$3,239$12
Losartan162$2,387$15
Levothyroxine131$2,207$17
Lisinopril136$1,885$14
Fluticasone Propionate83$1,709$21
Terazosin30$1,689$56
Atenolol112$1,516$14
Gabapentin26$1,465$56
Tamsulosin44$835$19
Acetaminophen-Codeine11$785$71
Alendronate57$766$13
Adacel Tdap15$765$51
Hydralazine35$745$21
Glipizide53$740$14
Metoprolol66$707$11
Furosemide57$681$12
Colchicine15$651$43
Pantoprazole51$627$12
Trazodone57$623$11
Clobetasol Propionate16$539$34
Allopurinol39$539$14
Metformin47$537$11
Albuterol Sulfate Hfa27$519$19
Midodrine11$484$44
Simvastatin43$476$11
Hydrochlorothiazide43$452$11
Metformin Hcl Er53$451$9
Citalopram Hbr25$437$17
Omeprazole41$426$10
Lovastatin21$406$19
Fenofibrate20$370$18
Lisinopril-Hydrochlorothiazide30$367$12
Famotidine38$348$9
Lorazepam16$325$20
Triamcinolone Acetonide15$304$20
Hydrocodone-Acetaminophen14$297$21
Sertraline22$291$13
Venlafaxine25$290$12
Minoxidil16$285$18
Rosuvastatin25$281$11
Digoxin19$280$15
Hydrocortisone21$264$13
Fluoxetine12$260$22
Cefadroxil22$237$11
Oxycodone-Acetaminophen15$228$15
Pravastatin18$208$12
Pioglitazone13$205$16
Butalbital-Acetaminophen-Caffe12$195$16
Acyclovir12$181$15
Glipizide Er11$179$16
Cephalexin13$148$11
Doxycycline Monohydrate11$148$13
Temazepam11$136$12
Rizatriptan11$129$12
Mupirocin13$127$10
Clonazepam12$127$11
Amoxicillin14$124$9
Azithromycin13$92$7
Ciprofloxacin14$91$7
Zolpidem14$85$6
Hydroxyzine12$73$6

Year by year

Part D prescribing by year
20243,1323472% (53)8%$148,212
20232,9683131% (37)8%$147,132
20222,5953141% (35)7%$109,880
20212,5213212% (55)7%$94,531
20202,2192253% (55)10%$89,378
20192,1722692% (37)12%$91,925
20182,1322412% (43)19%$95,548
20171,9952252% (43)19%$94,617
20162,4593065% (121)23%$132,737
20152,4783178% (208)21%$135,016
20142,20327510% (214)22%$119,911
20131,03921213% (134)26%$55,363

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

See the drugs prescribed each year

2023: 62 drugs

Part D drugs prescribed in 2023
Jardiance12$11,653$971
Pradaxa38$11,014$290
Stiolto Respimat16$10,492$656
Spiriva Respimat13$7,604$585
Alvesco19$4,507$237
Atorvastatin267$3,946$15
Amlodipine Besylate220$3,050$14
Levothyroxine114$2,200$19
Losartan150$2,121$14
Lisinopril151$2,004$13
Terazosin29$1,988$69
Fluticasone Propionate92$1,434$16
Atenolol115$1,358$12
Alendronate59$792$13
Donepezil12$763$64
Metoprolol67$727$11
Furosemide65$717$11
Hydrochlorothiazide65$708$11
Nystatin12$698$58
Albuterol Sulfate Hfa31$687$22
Glipizide49$677$14
Simvastatin52$669$13
Tamsulosin33$649$20
Colchicine11$649$59
Gabapentin28$618$22
Hydralazine24$602$25
Pantoprazole46$570$12
Metformin47$558$12
Allopurinol40$527$13
Acetaminophen-Codeine11$501$46
Lovastatin27$476$18
Trazodone49$470$10
Midodrine11$446$41
Citalopram Hbr25$423$17
Digoxin17$394$23
Fluocinonide15$394$26
Omeprazole35$374$11
Lisinopril-Hydrochlorothiazide28$369$13
Venlafaxine22$355$16
Paxlovid (Eua)21$350$17
Fenofibrate16$341$21
Famotidine30$339$11
Pravastatin17$305$18
Fluoxetine16$300$19
Cephalexin30$295$10
Diltiazem 24hr Er (Cd)11$259$24
Metformin Hcl Er30$259$9
Rosuvastatin20$246$12
Acyclovir13$226$17
Sertraline18$224$12
Doxycycline Monohydrate16$217$14
Triamcinolone Acetonide15$207$14
Pioglitazone11$190$17
Azithromycin12$180$15
Hydrocortisone12$140$12
Carvedilol11$128$12
Ibuprofen14$124$9
Amoxicillin12$118$10
Lorazepam12$118$10
Ciprofloxacin16$102$6
Oxycodone-Acetaminophen11$99$9
Zolpidem13$80$6

2022: 55 drugs

Part D drugs prescribed in 2022
Pradaxa34$16,721$492
Atorvastatin233$3,352$14
Alvesco23$3,339$145
Amlodipine Besylate203$3,003$15
Levothyroxine104$2,006$19
Terazosin36$1,919$53
Lisinopril141$1,827$13
Losartan122$1,692$14
Wixela Inhub11$1,621$147
Atenolol106$1,271$12
Hydralazine38$1,248$33
Gabapentin36$1,208$34
Isosorbide Dinitrate11$973$88
Fluticasone Propionate55$855$16
Metoprolol62$814$13
Furosemide56$777$14
Glipizide50$776$16
Hydrochlorothiazide70$716$10
Simvastatin60$709$12
Tamsulosin26$672$26
Alendronate59$661$11
Acetaminophen-Codeine13$630$48
Nortriptyline17$629$37
Fluocinonide13$624$48
Metformin48$591$12
Allopurinol31$519$17
Diclofenac17$505$30
Digoxin12$465$39
Albuterol Sulfate Hfa17$460$27
Famotidine31$388$13
Fenofibrate14$368$26
Donepezil11$354$32
Pantoprazole19$330$17
Omeprazole29$312$11
Paxlovid (Eua)17$289$17
Cephalexin29$289$10
Lisinopril-Hydrochlorothiazide19$268$14
Pravastatin11$265$24
Butalbital-Acetaminophen-Caffe11$259$24
Citalopram Hbr20$247$12
Metformin Hcl Er28$244$9
Trazodone22$236$11
Doxycycline Monohydrate16$234$15
Triamcinolone Acetonide21$204$10
Lovastatin15$175$12
Spironolactone13$168$13
Lorazepam16$164$10
Carvedilol14$163$12
Sertraline13$160$12
Fluoxetine12$153$13
Ibuprofen16$149$9
Rosuvastatin12$140$12
Clonazepam11$126$11
Prednisone15$125$8
Amoxicillin14$114$8

2021: 50 drugs

Part D drugs prescribed in 2021
Pradaxa29$19,864$685
Atorvastatin210$2,891$14
Amlodipine Besylate200$2,690$13
Levothyroxine112$2,282$20
Alvesco17$2,229$131
Lisinopril147$1,970$13
Terazosin40$1,706$43
Atenolol152$1,597$11
Losartan113$1,556$14
Gabapentin25$1,037$41
Hydralazine18$938$52
Nortriptyline16$805$50
Simvastatin71$790$11
Furosemide58$779$13
Hydrochlorothiazide73$751$10
Metoprolol59$738$13
Glipizide48$733$15
Fluticasone Propionate47$715$15
Allopurinol35$690$20
Metformin49$626$13
Acetaminophen-Codeine13$590$45
Famotidine58$577$10
Alendronate52$541$10
Etodolac13$485$37
Omeprazole26$475$18
Albuterol Sulfate Hfa19$415$22
Tamsulosin19$384$20
Duloxetine11$366$33
Pantoprazole19$364$19
Fenofibrate11$331$30
Metronidazole11$320$29
Pravastatin12$310$26
Warfarin22$303$14
Butalbital-Acetaminophen-Caffe13$290$22
Metformin Hcl Er33$280$8
Cephalexin26$273$11
Sertraline11$238$22
Triamcinolone Acetonide18$234$13
Citalopram Hbr19$222$12
Lorazepam18$194$11
Trazodone21$189$9
Lovastatin16$187$12
Clonazepam14$178$13
Doxycycline Monohydrate11$162$15
Lisinopril-Hydrochlorothiazide12$155$13
Carvedilol13$133$10
Spironolactone12$127$11
Oxycodone20$117$6
Ciprofloxacin18$117$6
Oxycodone-Acetaminophen13$114$9

2020: 53 drugs

Part D drugs prescribed in 2020
Pradaxa20$13,485$674
Spiriva Respimat15$8,040$536
Advair Diskus20$4,168$208
Levothyroxine106$2,693$25
Atorvastatin158$2,391$15
Alvesco20$1,909$95
Amlodipine Besylate146$1,855$13
Synthroid13$1,786$137
Terazosin39$1,581$41
Lisinopril115$1,580$14
Losartan111$1,508$14
Atenolol117$1,148$10
Hydralazine14$813$58
Fluticasone Propionate44$779$18
Gabapentin16$771$48
Furosemide57$763$13
Simvastatin68$753$11
Allopurinol29$736$25
Hydrochlorothiazide53$581$11
Pantoprazole23$565$25
Ventolin Hfa11$530$48
Tamsulosin21$504$24
Acetaminophen-Codeine12$503$42
Isosorbide Mononitrate Er15$491$33
Etodolac11$476$43
Digoxin12$448$37
Glipizide37$447$12
Famotidine48$418$9
Metoprolol42$410$10
Alendronate38$395$10
Metformin31$390$13
Omeprazole18$377$21
Pravastatin12$358$30
Triamcinolone Acetonide25$292$12
Lovastatin22$289$13
Warfarin21$288$14
Clopidogrel11$274$25
Butalbital-Acetaminophen-Caffe12$268$22
Carvedilol16$257$16
Citalopram Hbr16$200$13
Sertraline11$199$18
Temazepam11$176$16
Hydrocodone-Acetaminophen14$163$12
Cephalexin17$161$9
Clonazepam13$157$12
Oxycodone-Acetaminophen14$153$11
Metformin Hcl Er18$152$8
Lorazepam14$152$11
Trazodone13$131$10
Amoxicillin14$129$9
Fluoxetine11$125$11
Ciprofloxacin14$90$6
Oxycodone11$75$7

2019: 48 drugs

Part D drugs prescribed in 2019
Pradaxa20$12,279$614
Advair Diskus13$5,744$442
Atorvastatin153$3,352$22
Levothyroxine109$3,054$28
Synthroid14$1,938$138
Humulin R12$1,818$152
Colchicine12$1,568$131
Lisinopril105$1,398$13
Terazosin35$1,373$39
Amlodipine Besylate116$1,349$12
Qvar11$1,172$107
Losartan88$1,159$13
Alvesco11$1,109$101
Atenolol90$1,108$12
Ventolin Hfa19$1,002$53
Fluticasone Propionate53$951$18
Gabapentin15$910$61
Simvastatin79$905$11
Allopurinol24$747$31
Furosemide51$719$14
Triamcinolone Acetonide33$713$22
Hydralazine11$604$55
Tamsulosin20$563$28
Pantoprazole15$521$35
Glipizide36$516$14
Famotidine37$495$13
Isosorbide Mononitrate Er15$484$32
Warfarin37$472$13
Hydrochlorothiazide38$440$12
Metformin35$429$12
Digoxin11$424$39
Metoprolol38$419$11
Omeprazole16$418$26
Alendronate35$363$10
Cephalexin35$308$9
Carvedilol21$287$14
Metformin Hcl Er30$282$9
Lovastatin21$281$13
Temazepam17$271$16
Oxycodone-Acetaminophen16$233$15
Sertraline12$212$18
Hydrocodone-Acetaminophen19$212$11
Amoxicillin23$198$9
Lisinopril-Hydrochlorothiazide16$187$12
Alprazolam19$166$9
Trazodone15$163$11
Lorazepam13$138$11
Latanoprost11$110$10

2018: 49 drugs

Part D drugs prescribed in 2018
Advair Diskus18$8,745$486
Pradaxa21$7,161$341
Spiriva Respimat13$6,103$469
Atorvastatin151$3,768$25
Humulin N14$3,669$262
Qvar31$3,478$112
Levothyroxine110$3,090$28
Losartan79$1,429$18
Lisinopril108$1,296$12
Synthroid11$1,242$113
Atenolol94$1,174$12
Simvastatin92$1,050$11
Gabapentin22$1,047$48
Terazosin35$1,020$29
Butalbital-Acetaminophen-Caffe12$951$79
Fluticasone Propionate45$907$20
Allopurinol29$890$31
Amlodipine Besylate105$827$8
Furosemide49$819$17
Colchicine11$766$70
Ventolin Hfa17$753$44
Glipizide45$736$16
Hydralazine13$703$54
Omeprazole21$657$31
Pantoprazole14$553$39
Metronidazole12$515$43
Famotidine25$476$19
Tamsulosin16$470$29
Metoprolol43$445$10
Metformin Hcl Er31$426$14
Hydrochlorothiazide36$415$12
Lovastatin33$402$12
Metformin34$390$11
Trazodone33$363$11
Temazepam21$347$17
Warfarin24$337$14
Hydrocodone-Acetaminophen30$285$10
Alendronate22$276$13
Carvedilol24$245$10
Lisinopril-Hydrochlorothiazide20$243$12
Nortriptyline14$233$17
Triamcinolone Acetonide13$229$18
Fluoxetine15$202$13
Cephalexin17$177$10
Lorazepam12$160$13
Amoxicillin16$158$10
Alprazolam13$137$11
Clonazepam12$117$10
Azithromycin13$107$8

2017: 42 drugs

Part D drugs prescribed in 2017
Spiriva Respimat33$12,584$381
Pradaxa15$4,998$333
Atorvastatin156$4,486$29
Dulera11$3,411$310
Levothyroxine95$2,913$31
Losartan90$2,423$27
Qvar15$1,893$126
Humulin N12$1,615$135
Atenolol122$1,546$13
Lisinopril112$1,356$12
Gabapentin23$1,277$56
Simvastatin96$1,271$13
Colchicine15$1,101$73
Amlodipine Besylate107$868$8
Allopurinol23$858$37
Tamsulosin20$848$42
Nifedipine Er13$824$63
Omeprazole23$799$35
Glipizide53$788$15
Fluticasone Propionate26$573$22
Ventolin Hfa14$567$40
Terazosin36$560$16
Furosemide35$526$15
Metoprolol48$525$11
Lovastatin40$511$13
Pantoprazole12$464$39
Famotidine19$453$24
Hydrochlorothiazide40$441$11
Metformin35$399$11
Hydrocodone-Acetaminophen17$396$23
Warfarin31$390$13
Insulin16$384$24
Alendronate25$355$14
Ipratropium14$352$25
Metformin Hcl Er25$330$13
Triamcinolone Acetonide12$290$24
Paroxetine12$229$19
Cephalexin20$197$10
Nortriptyline11$195$18
Lisinopril-Hydrochlorothiazide16$187$12
Amoxicillin18$171$9
Trazodone12$124$10

2016: 53 drugs

Part D drugs prescribed in 2016
Spiriva Respimat48$13,733$286
Humulin N37$5,823$157
Dulera18$5,051$281
Atorvastatin155$4,721$30
Levothyroxine94$3,344$36
Losartan94$3,185$34
Qvar21$2,544$121
Gabapentin34$2,510$74
Simvastatin108$2,042$19
Amlodipine Besylate123$1,718$14
Atenolol124$1,589$13
Nifedipine Er14$1,486$106
Etodolac12$1,363$114
Lisinopril114$1,333$12
Hydrocodone-Acetaminophen35$1,195$34
Omeprazole32$1,090$34
Tamsulosin14$1,062$76
Pravastatin19$989$52
Glipizide62$949$15
Fluticasone Propionate49$932$19
Oxycodone13$835$64
Allopurinol17$742$44
Famotidine25$740$30
Insulin26$655$25
Hydralazine17$650$38
Furosemide52$646$12
Warfarin47$611$13
Proair Hfa16$582$36
Terazosin36$533$15
Metoprolol49$511$10
Metformin42$480$11
Triamcinolone Acetonide20$450$22
Hydrochlorothiazide37$421$11
Metformin Hcl Er27$388$14
Lovastatin30$375$12
Nortriptyline19$371$20
Alendronate23$343$15
Pantoprazole11$302$27
Tramadol35$286$8
Oxycodone-Acetaminophen14$247$18
Acetaminophen-Codeine13$214$16
Lisinopril-Hydrochlorothiazide17$202$12
Paroxetine11$183$17
Hydrocortisone11$179$16
Azithromycin17$168$10
Carvedilol14$162$12
Trazodone15$154$10
Amoxicillin17$153$9
Clonidine12$133$11
Meloxicam17$124$7
Lorazepam12$123$10
Ciprofloxacin12$119$10
Cephalexin11$102$9

2015: 55 drugs

Part D drugs prescribed in 2015
Spiriva34$16,040$472
Dulera15$5,408$361
Humulin N42$3,997$95
Gabapentin27$3,873$143
Atorvastatin125$3,687$29
Levothyroxine77$2,779$36
Losartan93$2,744$30
Amlodipine Besylate105$2,641$25
Hydrocodone-Acetaminophen68$2,365$35
Simvastatin125$2,301$18
Oxycodone24$2,100$87
Nifedipine Er17$1,876$110
Qvar19$1,767$93
Etodolac13$1,602$123
Fluticasone Propionate60$1,517$25
Morphine Sulfate Er16$1,430$89
Atenolol113$1,390$12
Pravastatin20$1,366$68
Lisinopril110$1,328$12
Omeprazole33$1,201$36
Tamsulosin16$1,195$75
Finasteride11$1,142$104
Proair Hfa26$876$34
Fenofibrate14$849$61
Glipizide52$761$15
Insulin27$730$27
Allopurinol13$648$50
Metformin58$614$11
Clopidogrel15$605$40
Furosemide45$554$12
Metoprolol50$552$11
Hydrochlorothiazide45$495$11
Famotidine20$493$25
Tramadol67$470$7
Pantoprazole18$453$25
Nortriptyline26$453$17
Lovastatin35$434$12
Warfarin29$426$15
Alendronate27$402$15
Terazosin29$396$14
Hydralazine11$372$34
Metformin Hcl Er19$354$19
Cyclobenzaprine13$296$23
Lisinopril-Hydrochlorothiazide25$292$12
Azithromycin18$206$11
Carvedilol15$190$13
Hydrocortisone13$185$14
Baclofen21$184$9
Acetaminophen-Codeine14$177$13
Ciprofloxacin16$166$10
Cephalexin14$162$12
Amoxicillin11$124$11
Lorazepam14$113$8
Diazepam12$100$8
Trazodone11$88$8

2014: 55 drugs

Part D drugs prescribed in 2014
Spiriva38$15,245$401
Humulin N36$3,555$99
Gabapentin32$3,461$108
Atorvastatin85$2,587$30
Losartan73$2,180$30
Amlodipine Besylate96$2,164$23
Morphine Sulfate Er18$1,991$111
Humalog15$1,917$128
Oxycodone21$1,854$88
Simvastatin102$1,817$18
Hydrocodone-Acetaminophen82$1,773$22
Qvar22$1,772$81
Etodolac15$1,606$107
Lidocaine17$1,605$94
Fluticasone Propionate47$1,467$31
Pravastatin13$1,422$109
Atenolol104$1,289$12
Levothyroxine57$1,230$22
Omeprazole31$1,174$38
Fenofibrate13$1,052$81
Lisinopril82$986$12
Proair Hfa27$945$35
Dilt-Xr11$927$84
Bupropion Xl11$790$72
Glipizide50$722$14
Hydralazine23$674$29
Tamsulosin13$650$50
Metformin47$543$12
Hydrochlorothiazide49$527$11
Nabumetone20$504$25
Tramadol68$500$7
Insulin23$469$20
Hydromorphone17$462$27
Metoprolol38$433$11
Furosemide37$432$12
Allopurinol12$430$36
Alendronate24$358$15
Warfarin25$348$14
Lovastatin24$313$13
Pantoprazole18$286$16
Cyclobenzaprine19$283$15
Famotidine11$258$23
Hydroxyzine11$230$21
Azithromycin20$217$11
Lisinopril-Hydrochlorothiazide18$217$12
Nortriptyline13$199$15
Terazosin16$193$12
Cephalexin17$178$10
Fluoxetine11$175$16
Hydrocortisone12$170$14
Carvedilol12$166$14
Lorazepam13$127$10
Amoxicillin11$125$11
Ciprofloxacin12$99$8
Diazepam12$96$8

2013: 25 drugs

Part D drugs prescribed in 2013
Spiriva26$8,161$314
Humulin N12$2,585$215
Zostavax11$1,958$178
Hydrocodone-Acetaminophen58$1,217$21
Atorvastatin33$1,169$35
Losartan36$1,065$30
Amlodipine Besylate46$1,007$22
Gabapentin12$923$77
Fluticasone Propionate26$744$29
Omeprazole22$617$28
Simvastatin30$588$20
Proair Hfa15$509$34
Atenolol32$363$11
Levothyroxine16$357$22
Triamcinolone Acetonide12$353$29
Glipizide25$351$14
Metformin23$288$13
Lisinopril25$260$10
Furosemide21$257$12
Alendronate15$239$16
Tramadol26$219$8
Hydrochlorothiazide17$195$11
Metoprolol12$143$12
Azithromycin11$117$11
Ciprofloxacin12$87$7

Professional record

NPI
1013144724
Trained
University of California, San Francisco School of Medicine, 2009 · 17 years ago
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Student in a training program (390200000X)
Mailing address
1001 Potrero Ave # 1m3, San Francisco, CA, 94110
NPI first listed
2009-06-20
NPI last updated
2021-12-20

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

This office lists an electronic records connection.