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David Lyons Kaufman, MD

Internal Medicine · Mountain View

NPI 1720013782

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Office
1

Offices

1 location

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Kaufman’s office at (650) 691-8633 to ask if they take your plan before you enroll.

California Medical Board record

Licence G89230 · Current

Licensed to practise in California · since 2012 · expires 2028-10-31 · New York Medical College.

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

Drugs they prescribed that Part D paid

$195,584

Pharmacies billed $195,584 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 683) in 2024. At or below the middle of the specialty; the typical internal medicine clinician is at 1%.

561 generic and fewer than 11 brand-name prescriptions · $195,584 in drug cost · 34 antibiotic prescriptions to 12 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
HizentraImmune globulin12$74,644$6,220
CromolynNone35$41,650$1,190
MaravirocNone61$23,129$379
CorlanorNone21$14,350$683
Tenofovir DisoproxilNone26$2,109$81
See all 19 drugs
Every Part D drug this clinician prescribed
HizentraImmune globulin12$74,644$6,220
CromolynNone35$41,650$1,190
MaravirocNone61$23,129$379
CorlanorNone21$14,350$683
Tenofovir DisoproxilNone26$2,109$81
ValacyclovirNone26$1,946$75
Fludrocortisone AcetateNone50$1,269$25
CelecoxibNone18$1,003$56
Sodium ChlorideNone41$970$24
SirolimusNone16$897$56
PyridostigmineNone12$765$64
HydrocortisoneNone32$685$21
MidodrineNone17$481$28
GuanfacineNone24$451$19
LevothyroxineNone23$390$17
FamotidineNone11$237$22
AzithromycinNone15$155$10
DexamethasoneNone15$91$6
MetforminNone18$60$3

Year by year

Part D prescribing by year
2024683400% (0)None$195,584
2023544330% (0)None$274,203
202262453NoneNone$390,823
202170257None11%$330,679
202071062NoneNone$340,734
201969861NoneNone$588,499
201867257NoneNone$572,939
2017513510% (0)20%$109,938
201646043None17%$61,360
2015344434% (15)None$84,087
201416946NoneNone$66,269
20131,739210None40%$370,166

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

See the drugs prescribed each year

2023: 19 drugs

Part D drugs prescribed in 2023
Cromolyn41$36,781$897
Imatinib Mesylate12$13,053$1,088
Maraviroc13$8,604$662
Carvedilol Er12$6,334$528
Liothyronine14$4,079$291
Celecoxib44$3,130$71
Valacyclovir25$1,880$75
Pyridostigmine18$1,755$97
Hydrocortisone21$1,297$62
Fludrocortisone Acetate27$1,289$48
Sodium Chloride25$769$31
Midodrine14$610$44
Famotidine13$393$30
Acetazolamide14$262$19
Guanfacine12$176$15
Dexamethasone18$124$7
Metformin21$117$6
Levothyroxine16$105$7
Nadolol11$73$7

2022: 21 drugs

Part D drugs prescribed in 2022
HizentraImmune globulin13$216,993$16,692
CromolynNone47$70,135$1,492
SelzentryNone14$24,562$1,754
ValganciclovirNone14$13,476$963
FamciclovirNone17$5,173$304
CelecoxibNone42$3,572$85
ValacyclovirNone24$3,131$130
LiothyronineNone16$2,696$169
MidodrineNone35$2,231$64
HydrocortisoneNone29$1,595$55
PyridostigmineNone24$1,397$58
Fludrocortisone AcetateNone38$1,170$31
AcetazolamideNone13$1,058$81
FluconazoleNone14$949$68
FamotidineNone11$456$41
PropranololNone25$399$16
LevothyroxineNone13$178$14
LorazepamNone11$175$16
CyproheptadineNone12$145$12
MetforminNone12$81$7
Fluticasone PropionateNone11$79$7

2021: 24 drugs

Part D drugs prescribed in 2021
HizentraImmune globulin13$189,292$14,561
CromolynNone41$64,324$1,569
ValganciclovirNone18$18,139$1,008
FamciclovirNone20$6,536$327
ValacyclovirNone45$4,630$103
CelecoxibNone33$2,894$88
MidodrineNone34$2,344$69
AcetazolamideNone21$1,929$92
PyridostigmineNone26$1,503$58
LiothyronineNone17$1,175$69
HydrocortisoneNone19$1,091$57
FluconazoleNone17$991$58
PropranololNone41$893$22
Fludrocortisone AcetateNone30$748$25
FamotidineNone27$669$25
MontelukastNone17$462$27
Carbidopa-LevodopaNone14$352$25
HydroxyzineNone13$283$22
LevothyroxineNone16$276$17
LorazepamNone14$232$17
NaltrexoneNone12$217$18
Ondansetron OdtNone11$168$15
ClonidineNone13$66$5
MetforminNone17$53$3

2020: 23 drugs

Part D drugs prescribed in 2020
HizentraImmune globulin13$191,272$14,713
CromolynNone45$72,650$1,614
Imatinib MesylateNone17$14,684$864
FamciclovirNone22$11,214$510
ValacyclovirNone58$9,315$161
MidodrineNone37$2,610$71
FluconazoleNone16$1,685$105
HydrocortisoneNone40$1,371$34
CelecoxibNone39$1,365$35
PyridostigmineNone19$715$38
NaltrexoneNone15$647$43
FamotidineNone25$539$22
PropranololNone38$529$14
Fludrocortisone AcetateNone16$473$30
LevothyroxineNone21$352$17
ClonazepamNone18$323$18
HydroxyzineNone15$291$19
Carbidopa-LevodopaNone19$274$14
Ondansetron OdtNone11$203$18
MontelukastNone19$150$8
Potassium ChlorideNone13$124$10
Fluticasone PropionateNone13$93$7
LovastatinNone11$58$5

2019: 18 drugs

Part D drugs prescribed in 2019
CromolynNone59$78,712$1,334
Gamunex-CImmune globulin11$77,340$7,031
FamciclovirNone11$10,560$960
ValacyclovirNone45$7,783$173
CelecoxibNone31$1,538$50
LiothyronineNone18$1,347$75
FluconazoleNone20$1,177$59
HydrocortisoneNone33$966$29
PropranololNone40$685$17
ClonazepamNone31$654$21
MethylphenidateNone13$607$47
NaltrexoneNone11$435$40
SynthroidNone11$434$39
LevothyroxineNone19$422$22
MontelukastNone25$238$10
LovastatinNone26$176$7
Fluticasone PropionateNone13$93$7
AtenololNone13$69$5

2018: 24 drugs

Part D drugs prescribed in 2018
Gammagard LiquidImmune globulin18$239,888$13,327
Gamunex-CImmune globulin15$97,830$6,522
CuvitruImmune globulin13$38,630$2,972
CromolynNone39$32,809$841
XifaxanNone12$17,661$1,472
FamciclovirNone11$11,062$1,006
ValacyclovirNone43$5,408$126
CelecoxibNone30$1,706$57
HydrocortisoneNone48$1,532$32
LiothyronineNone29$1,101$38
Solu-CortefNone17$619$36
Bethanechol ChlorideNone11$574$52
NaltrexoneNone27$549$20
Fludrocortisone AcetateNone16$530$33
LevothyroxineNone28$526$19
PropranololNone16$229$14
RosuvastatinNone16$189$12
MontelukastNone15$166$11
DoxepinNone11$158$14
RanitidineNone12$136$11
ClonazepamNone15$110$7
LovastatinNone13$74$6
MetforminNone13$63$5
DexamethasoneNone13$58$4

2017: 18 drugs

Part D drugs prescribed in 2017
Cromolyn15$25,019$1,668
Ceftriaxone28$8,481$303
Famciclovir13$4,247$327
Sodium Chloride28$1,742$62
Celecoxib17$1,700$100
Valacyclovir19$1,620$85
Liothyronine26$1,430$55
Hydrocortisone43$1,249$29
Desmopressin Acetate12$804$67
Bethanechol Chloride14$733$52
Fludrocortisone Acetate32$517$16
Levothyroxine27$390$14
Naltrexone11$259$24
Clonazepam12$258$21
Propranolol18$230$13
Azithromycin13$190$15
Potassium Chloride13$140$11
Dexamethasone11$62$6

2016: 14 drugs

Part D drugs prescribed in 2016
Valacyclovir36$4,662$129
Famciclovir15$2,004$134
Hydrocortisone49$1,842$38
Ceftriaxone19$1,784$94
Rifampin12$1,232$103
Sodium Chloride17$817$48
Desmopressin Acetate11$739$67
Liothyronine17$562$33
Levothyroxine27$410$15
Fludrocortisone Acetate19$367$19
Clonazepam24$195$8
Montelukast12$192$16
Propranolol18$175$10
Potassium Chloride12$120$10

2015: 6 drugs

Part D drugs prescribed in 2015
Valacyclovir44$5,096$116
Celecoxib11$1,582$144
Hydrocortisone12$407$34
Levothyroxine15$223$15
Tramadol13$93$7
Clonazepam17$75$4

2014: 2 drugs

Part D drugs prescribed in 2014
Reyataz11$13,434$1,221
Bicillin L-A11$6,645$604

2013: 47 drugs

Part D drugs prescribed in 2013
Truvada41$51,080$1,246
Prezista34$45,832$1,348
Atripla19$36,805$1,937
Reyataz27$30,622$1,134
Isentress18$19,377$1,077
Norvir44$17,339$394
Viread14$12,036$860
Advair Diskus32$10,501$328
Crestor31$8,125$262
Bicillin L-A11$5,609$510
Nexium18$4,964$276
Lovaza14$2,821$201
Atorvastatin70$2,401$34
Dexilant13$2,080$160
Diovan11$1,769$161
Synthroid38$1,761$46
Clopidogrel23$1,386$60
Valacyclovir21$1,306$62
Levothyroxine80$1,071$13
Omeprazole25$965$39
Montelukast17$905$53
Losartan42$900$21
Chlorthalidone38$858$23
Tamsulosin24$844$35
Acyclovir29$664$23
Metoprolol19$628$33
Metformin33$584$18
Simvastatin49$518$11
Gabapentin31$487$16
Fluoxetine14$435$31
Enalapril Maleate51$433$8
Fluticasone Propionate20$424$21
Warfarin19$417$22
Amlodipine Besylate33$368$11
Atenolol37$310$8
Prochlorperazine Maleate12$280$23
Lisinopril19$248$13
Hydrochlorothiazide36$240$7
Ramipril18$240$13
Finasteride13$229$18
Levoxyl11$218$20
Ranitidine15$217$14
Zolpidem34$201$6
Ibuprofen12$192$16
Furosemide30$190$6
Metoprolol16$122$8
Citalopram Hbr11$65$6

Money from drug and device companies

$70 in 2025

Industry payments by year
202511None$70
202411None$143
201912None$43

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

A payment is not proof that care is biased.

Payments by company
60 Degrees PharmaceuticalsNone$70
1 payment
  • Meals · 2025-10-10 · $70
See the published payment
Every published payment
60 Degrees PharmaceuticalsMeals · 2025-10-10None$70
See earlier years (2024, 2019)

2024: $143

Payments by company in 2024
PfizerXtandi$143
1 payment
  • Meals for Xtandi · 2024-11-11 · $143

2019: $43

Payments by company in 2019
Astellas Pharma USMyrbetriq$43
2 payments
  • Meals for Myrbetriq · 2019-09-30 · $21
  • Meals for Myrbetriq · 2019-02-26 · $22

Professional record

NPI
1720013782
Licence
CA G89230, NY 135662California G89230: Current · expires 2028-10-31
More record details
Sole proprietor
No
Medicaid ID
NY 01018184
Taxonomy
Internal medicine (207R00000X)
Mailing address
2500 Hospital Dr, Building 2, Mountain View, CA, 94040
NPI first listed
2006-07-11
NPI last updated
2013-08-01

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