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Peter M Maguire, MD

Allergy/Immunology · Palo Alto

NPI 1457360851

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
14
2 carriers
Office
1

Offices

1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Plans that list them

14 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Maguire’s office at (415) 600-1020 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

14 of 14 plans

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Sutter Advantage +More (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence G77607 · Current

Licensed to practise in California · since 1993 · expires 2026-12-31 · Loyola University of Chicago Stritch School of Medicine.

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

Original Medicare doctor bills

$258,961

Medicare paid this office $258,961 for 208 people.

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

Largest Original Medicare bills
Return visit (30+ min)112$14,356$110
Professional service for preparation and provision of 1 or more antigens48$11,663$14
Professional service for multiple injections of allergen71$7,314$12
New patient visit (45+ min)38$5,700$150
Long return visit (40+ min)26$5,189$173
See all 9 services
Every Original Medicare service billed
Return visit (30+ min)112$14,356$110
Professional service for preparation and provision of 1 or more antigens48$11,663$14
Professional service for multiple injections of allergen71$7,314$12
New patient visit (45+ min)38$5,700$150
Long return visit (40+ min)26$5,189$173
Injection of drug or substance under skin or into muscle15$2,541$14
New patient visit (60+ min)13$2,335$180
Test for allergy using allergenic extract20$2,196$4
Short return visit (20+ min)14$1,148$72

Who their Medicare patients are

208 Original Medicare patients in 2024. Average age 75 · Under 65 0% · 85 and older 12% · Women 64% · Health risk score 0.72. At or below the middle of the specialty; the typical allergy/ immunology clinician is at 1.

Conditions among them: High blood pressure 55% · Coronary heart disease 16% · Cancer 14% · Atrial fibrillation 13% · Depression 12% · Diabetes 9% · Chronic kidney disease 9% · COPD 6%.

The office billed $922,302, Medicare allowed $332,610 and paid $258,961; for 11,539 services of 23 kinds; $202,906 of it was for drugs given in the office and $56,056 for care.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
202420811,539750.72$922,302$258,961
20231847,122740.63$584,317$174,479
20221544,818740.66$437,706$141,795
20211865,633740.76$460,513$147,371
20201737,047740.71$541,404$165,868
20192567,435730.72$489,659$169,166
20182677,579730.76$490,335$166,270
20172616,778730.70$412,021$137,641
20162626,124730.66$391,766$117,316
20152574,029730.70$240,992$63,307
20142412,767720.67$210,103$45,367
20132492,666720.67$194,369$43,546

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.

See the services billed each year

2023: 9 services

Original Medicare services billed in 2023
Professional service for preparation and provision of 1 or more antigens58$15,691$15
Return visit (30+ min)81$11,115$112
Professional service for multiple injections of allergen70$7,907$11
New patient visit (45+ min)33$4,835$147
Long return visit (40+ min)25$4,441$159
Test for allergy using allergenic extract22$2,513$4
Injection of drug or substance under skin or into muscle13$1,823$14
New patient visit (30+ min)14$1,423$102
Short return visit (20+ min)16$1,324$74

2022: 9 services

Original Medicare services billed in 2022
Professional service for preparation and provision of 1 or more antigens47$11,552$16
Return visit (30+ min)79$10,965$123
Professional service for multiple injections of allergen63$6,724$12
New patient visit (45+ min)20$3,198$160
Long return visit (40+ min)15$2,694$168
New patient visit (30+ min)18$1,947$108
Short return visit (20+ min)18$1,527$80
Test for allergy using allergenic extract12$1,191$4
Injection of drug or substance under skin or into muscle13$936$14

2021: 5 services

Original Medicare services billed in 2021
Professional service for preparation and provision of 1 or more antigens58$17,709$16
Return visit (30+ min)80$10,478$113
Professional service for multiple injections of allergen70$6,261$10
Short return visit (20+ min)36$2,853$71
New patient visit (30+ min)23$2,090$91

2020: 8 services

Original Medicare services billed in 2020
Professional service for preparation and provision of 1 or more antigens67$16,706$15
Return visit (30+ min)71$7,660$97
Professional service for multiple injections of allergen87$6,707$9
Short return visit (20+ min)32$2,309$68
Telephone medical discussion with physician, 21-30 minutes21$1,997$95
New patient visit (45+ min)17$1,864$110
Test for allergy using allergenic extract14$1,448$4
New patient visit (30+ min)15$1,078$72

2019: 8 services

Original Medicare services billed in 2019
Professional service for preparation and provision of 1 or more antigens83$19,866$14
Return visit (30+ min)100$10,576$91
Professional service for multiple injections of allergen101$10,058$10
New patient visit (45+ min)51$7,514$147
Short return visit (20+ min)47$3,293$67
New patient visit (30+ min)26$2,067$80
Test for allergy using allergenic extract19$1,845$4
Injection of drug or substance under skin or into muscle11$1,264$16

2018: 10 services

Original Medicare services billed in 2018
Professional service for preparation and provision of 1 or more antigens90$18,527$13
Professional service for multiple injections of allergen117$11,421$9
Return visit (30+ min)100$10,213$88
New patient visit (45+ min)48$6,798$142
New patient visit (30+ min)41$3,695$90
Short return visit (20+ min)40$2,771$63
Test for allergy using combination of methods with drug or biological12$2,462$21
Test for allergy using allergenic extract22$2,111$4
Test for allergy using ingested items, initial 2 hours15$1,747$116
Test for allergy using ingested items, each additional hour13$1,028$79

2017: 8 services

Original Medicare services billed in 2017
Professional service for preparation and provision of 1 or more antigens83$17,139$12
Return visit (30+ min)100$10,730$87
Professional service for multiple injections of allergen122$10,522$9
New patient visit (45+ min)37$5,044$136
Test for allergy using allergenic extract22$3,942$7
Short return visit (20+ min)52$3,389$59
New patient visit (30+ min)26$2,187$84
New patient visit (15+ min)12$690$58

2016: 8 services

Original Medicare services billed in 2016
Professional service for preparation and provision of 1 or more antigens85$16,186$12
Professional service for multiple injections of allergen120$10,742$9
Return visit (30+ min)99$10,311$87
Test for allergy using allergenic extract22$4,517$7
New patient visit (30+ min)45$4,118$92
Short return visit (20+ min)48$3,515$63
New patient visit (45+ min)13$1,598$123
New patient visit (15+ min)17$1,201$71

2015: 9 services

Original Medicare services billed in 2015
Professional service for preparation and provision of 1 or more antigens94$17,906$12
Return visit (30+ min)97$11,276$94
Professional service for multiple injections of allergen105$9,355$9
Test for allergy using allergenic extract38$6,641$6
Short return visit (20+ min)53$4,203$69
New patient visit (30+ min)37$3,579$97
New patient visit (45+ min)19$2,790$147
New patient visit (15+ min)24$1,663$69
Professional service for single injection of allergen12$434$9

2014: 7 services

Original Medicare services billed in 2014
Professional service for preparation and provision of 1 or more antigens92$10,345$11
Professional service for multiple injections of allergen108$10,220$9
Return visit (30+ min)102$9,999$87
New patient visit (30+ min)44$4,107$93
Test for allergy using allergenic extract11$2,172$6
Short return visit (20+ min)28$1,765$61
New patient visit (15+ min)13$909$70

2013: 8 services

Original Medicare services billed in 2013
Professional service for preparation and provision of 1 or more antigens106$9,826$12
Professional service for multiple injections of allergen121$8,895$10
Return visit (30+ min)78$7,167$81
New patient visit (30+ min)37$3,338$90
Short return visit (20+ min)38$2,676$64
Test for allergy using allergenic extract16$2,092$6
New patient visit (15+ min)11$625$57
Professional service for single injection of allergen12$550$9

Drugs they prescribed that Part D paid

$57,994

Pharmacies billed $57,994 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 512) in 2024. At or below the middle of the specialty; the typical allergy/ immunology clinician is at 0%.

392 generic and 120 brand-name prescriptions · $57,994 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
Qvar Redihaler11$8,224$748
Arnuity Ellipta27$7,287$270
Ipratropium74$2,367$32
Montelukast128$1,644$13
Epinephrine12$1,491$124
See all 10 drugs
Every Part D drug this clinician prescribed
Qvar Redihaler11$8,224$748
Arnuity Ellipta27$7,287$270
Ipratropium74$2,367$32
Montelukast128$1,644$13
Epinephrine12$1,491$124
Fluticasone-Salmeterol13$1,486$114
Albuterol Sulfate Hfa34$1,342$39
Azelastine33$1,241$38
Levocetirizine Dihydrochloride46$712$15
Fluticasone Propionate20$512$26

Year by year

Part D prescribing by year
20245121310% (0)23%$57,994
2023564122NoneNone$97,716
20224971270% (0)None$100,479
20214781160% (0)38%$95,088
20205211210% (0)38%$102,147
20195661390% (0)35%$93,717
20186121550% (0)39%$106,925
20176671470% (0)42%$105,875
20167751720% (0)43%$100,447
20156311420% (0)46%$84,451
20146561450% (0)44%$79,768
20136561340% (0)53%$80,573

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

See the drugs prescribed each year

2023: 10 drugs

Part D drugs prescribed in 2023
Symbicort15$14,840$989
Flovent Hfa32$11,569$362
Advair Hfa14$11,362$812
Ipratropium82$3,500$43
Montelukast149$3,266$22
Albuterol Sulfate Hfa37$1,628$44
Azelastine34$1,419$42
Levocetirizine Dihydrochloride39$814$21
Fluticasone Propionate31$790$25
Triamcinolone Acetonide13$33$3

2022: 11 drugs

Part D drugs prescribed in 2022
Advair Hfa24$21,813$909
Symbicort13$9,461$728
Flovent Hfa24$7,514$313
Pulmicort Flexhaler11$6,958$633
Montelukast117$3,696$32
Ipratropium35$1,963$56
Azelastine28$1,272$45
Albuterol Sulfate Hfa28$1,098$39
Levocetirizine Dihydrochloride37$1,004$27
Fluticasone Propionate27$673$25
Triamcinolone Acetonide12$63$5

2021: 13 drugs

Part D drugs prescribed in 2021
Advair Hfa17$19,568$1,151
Flovent Hfa27$7,546$279
Combivent Respimat13$7,118$548
Pulmicort Flexhaler15$6,097$406
Fluticasone-Salmeterol12$3,333$278
Ipratropium34$1,868$55
Montelukast109$1,798$16
Azelastine47$1,708$36
Levalbuterol Tartrate Hfa17$1,367$80
Albuterol Sulfate Hfa22$1,231$56
Fluticasone Propionate30$740$25
Olopatadine17$575$34
Levocetirizine Dihydrochloride21$331$16

2020: 11 drugs

Part D drugs prescribed in 2020
Advair Hfa22$19,401$882
Pulmicort Flexhaler17$8,278$487
Qvar Redihaler14$8,207$586
Flovent Hfa21$6,674$318
Ipratropium63$3,115$49
Montelukast118$1,904$16
Azelastine43$1,430$33
Albuterol Sulfate Hfa15$852$57
Fluticasone Propionate25$753$30
Ventolin Hfa12$686$57
Levocetirizine Dihydrochloride26$401$15

2019: 12 drugs

Part D drugs prescribed in 2019
Advair Hfa30$23,632$788
Symbicort22$11,183$508
Pulmicort Flexhaler20$7,424$371
Qvar Redihaler18$7,125$396
Flovent Hfa15$4,514$301
Ipratropium54$2,596$48
Montelukast141$2,237$16
Azelastine35$1,756$50
Ventolin Hfa15$971$65
Fluticasone Propionate42$917$22
Levocetirizine Dihydrochloride36$414$12
Azithromycin14$87$6

2018: 13 drugs

Part D drugs prescribed in 2018
Advair Hfa32$24,878$777
Pulmicort Flexhaler36$11,243$312
Symbicort14$5,961$426
Flovent Hfa14$3,420$244
Olopatadine20$2,803$140
Montelukast143$2,664$19
Azelastine36$2,319$64
Ipratropium42$2,045$49
Levalbuterol Tartrate Hfa12$1,319$110
Ventolin Hfa20$1,203$60
Fluticasone Propionate41$794$19
Levocetirizine Dihydrochloride44$392$9
Triamcinolone Acetonide13$102$8

2017: 18 drugs

Part D drugs prescribed in 2017
Advair Hfa46$26,407$574
Pulmicort Flexhaler40$10,402$260
Flovent Hfa21$7,440$354
Qvar25$7,436$297
Advair Diskus12$4,099$342
Symbicort13$3,909$301
Mometasone Furoate22$3,344$152
Azelastine51$2,887$57
Montelukast140$2,186$16
Olopatadine19$1,716$90
Ipratropium42$1,647$39
Ventolin Hfa21$1,631$78
Proair Hfa15$1,073$72
Zafirlukast12$1,053$88
Fluticasone Propionate34$607$18
Levocetirizine Dihydrochloride18$321$18
Triamcinolone Acetonide13$104$8
Azithromycin11$53$5

2016: 24 drugs

Part D drugs prescribed in 2016
Advair Hfa36$19,303$536
Flovent Hfa26$7,807$300
Qvar28$7,283$260
Epipen 2-Pak12$7,072$589
Pulmicort Flexhaler28$6,615$236
Pataday24$5,687$237
Advair Diskus12$4,820$402
Asmanex15$3,208$214
Nasonex11$2,605$237
Singulair12$2,565$214
Montelukast138$2,529$18
Azelastine52$2,442$47
Proair Hfa33$1,889$57
Ipratropium55$1,449$26
Zafirlukast12$1,228$102
Ventolin Hfa18$1,024$57
Mometasone Furoate14$952$68
Fluticasone Propionate39$635$16
Levocetirizine Dihydrochloride21$630$30
Triamcinolone Acetonide21$412$20
Hydroxyzine12$359$30
Methylprednisolone17$293$17
Azithromycin23$144$6
Prednisone13$34$3

2015: 17 drugs

Part D drugs prescribed in 2015
Advair Hfa38$19,127$503
Qvar33$8,701$264
Nasonex25$5,998$240
Flovent Hfa19$5,573$293
Epipen 2-Pak11$5,064$460
Advair Diskus15$4,355$290
Pataday15$3,675$245
Proair Hfa40$2,488$62
Montelukast152$2,416$16
Asmanex12$2,338$195
Azelastine39$2,309$59
Zafirlukast14$1,611$115
Ipratropium31$808$26
Fluticasone Propionate39$594$15
Levocetirizine Dihydrochloride15$506$34
Doxepin12$436$36
Azithromycin20$160$8

2014: 16 drugs

Part D drugs prescribed in 2014
Advair Hfa28$12,462$445
Qvar47$10,570$225
Nasonex33$8,314$252
Montelukast151$5,284$35
Asmanex25$5,021$201
Flovent Hfa13$3,869$298
Advair Diskus14$3,796$271
Azelastine39$3,584$92
Pataday12$2,483$207
Proair Hfa49$2,398$49
Triamcinolone Acetonide16$1,522$95
Zafirlukast14$1,377$98
Fluticasone Propionate61$1,312$22
Levocetirizine Dihydrochloride11$942$86
Ipratropium28$757$27
Azithromycin14$105$7

2013: 16 drugs

Part D drugs prescribed in 2013
Qvar52$10,509$202
Advair Hfa23$10,436$454
Montelukast108$7,949$74
Nasonex39$7,723$198
Flovent Hfa33$7,710$234
Asmanex20$3,812$191
Triamcinolone Acetonide35$3,665$105
Singulair14$2,668$191
Proair Hfa49$2,385$49
Azelastine31$2,105$68
Fluticasone Propionate74$1,945$26
Pulmicort Flexhaler11$1,807$164
Zafirlukast18$1,661$92
Rhinocort Aqua11$1,483$135
Ipratropium28$925$33
Azithromycin13$123$9

Money from drug and device companies

$366 in 2025

Industry payments by year
2025813None$366
202423None$58
202312None$31
202134None$83
202034None$87
201911None$16

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
ARS Pharmaceuticals OperationsNeffy$99
4 payments
  • Meals for Neffy · 2025-11-05 · $16
  • Meals for Neffy · 2025-09-11 · $25
  • Meals for Neffy · 2025-08-14 · $29
  • Meals for Neffy · 2025-06-27 · $29
GenzymeDupixent$85
3 payments
  • Meals for Dupixent · 2025-06-05 · $22
  • Meals · 2025-05-07 · $35
  • Meals for Dupixent · 2025-03-19 · $28
Regeneron Healthcare SolutionsDupixent$36
1 payment
  • Meals for Dupixent · 2025-11-13 · $36
Genentech USAXolair$35
1 payment
  • Meals for Xolair · 2025-11-10 · $35
GlaxoSmithKlineNucala$34
1 payment
  • Meals for Nucala · 2025-04-23 · $34
Novartis PharmaceuticalsXolair$32
1 payment
  • Meals for Xolair · 2025-09-25 · $32
See all 13 published payments
Every published payment
Regeneron Healthcare SolutionsMeals · 2025-11-13Dupixent$36
Genentech USAMeals · 2025-11-10Xolair$35
ARS Pharmaceuticals OperationsMeals · 2025-11-05Neffy$16
Lilly USAMeals · 2025-10-29Ebglyss$29
Novartis PharmaceuticalsMeals · 2025-09-25Xolair$32
ARS Pharmaceuticals OperationsMeals · 2025-09-11Neffy$25
ARS Pharmaceuticals OperationsMeals · 2025-08-14Neffy$29
ARS Pharmaceuticals OperationsMeals · 2025-06-27Neffy$29
PfizerMeals · 2025-06-25Cibinqo$16
GenzymeMeals · 2025-06-05Dupixent$22
GenzymeMeals · 2025-05-07None$35
GlaxoSmithKlineMeals · 2025-04-23Nucala$34
GenzymeMeals · 2025-03-19Dupixent$28
See earlier years (2024, 2023, 2021, 2020, 2019)

2024: $58

Payments by company in 2024
PfizerEucrisa$31
2 payments
  • Meals for Eucrisa · 2024-12-13 · $14
  • Meals for Eucrisa · 2024-10-16 · $17
Genentech USAXolair$26
1 payment
  • Meals for Xolair · 2024-10-30 · $26

2023: $31

Payments by company in 2023
PfizerCibinqo$31
2 payments
  • Education for Cibinqo · 2023-05-05 · $15
  • Education for Cibinqo · 2023-04-14 · $15

2021: $83

Payments by company in 2021
GlaxoSmithKlineNucala$42
2 payments
  • Meals for Nucala · 2021-08-25 · $26
  • Meals for Nucala · 2021-05-12 · $16
PfizerEucrisa$21
1 payment
  • Meals for Eucrisa · 2021-04-14 · $21
AstraZeneca Pharmaceuticals LPBreztri$20
1 payment
  • Meals for Breztri · 2021-03-10 · $20

2020: $87

Payments by company in 2020
GlaxoSmithKlineNucala$52
2 payments
  • Meals for Nucala · 2020-03-10 · $28
  • Meals for Nucala · 2020-02-04 · $24
Genentech USAXolair$18
1 payment
  • Meals for Xolair · 2020-03-25 · $18
PfizerEucrisa$16
1 payment
  • Meals for Eucrisa · 2020-03-04 · $16

2019: $16

Payments by company in 2019
GlaxoSmithKlineNucala$16
1 payment
  • Meals for Nucala · 2019-12-10 · $16

Professional record

NPI
1457360851
Licence
CA G77607California G77607: Current · expires 2026-12-31
Trained
Loyola University of Chicago, Stritch School of Medicine, 1991
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207KA0200X (207KA0200X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2006-08-05
NPI last updated
2020-03-04
NPI record certified
2020-03-04

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