We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Lewis’s office at (650) 321-4121 to ask if they take your plan before you enroll.
California Medical Board record
Licence A109167 · Current
Licensed to practise in California · since 2009 · expires 2027-08-31 · Loyola University of Chicago Stritch School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$48,516
Medicare paid this office $48,516 for 313 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Largest Original Medicare bills
Return visit (30+ min)
142
$16,473
$113
New patient visit (45+ min)
72
$10,061
$140
Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus
32
$4,473
$140
Short return visit (20+ min)
48
$3,951
$81
Long return visit (40+ min)
20
$3,404
$170
See all 10 services
Every Original Medicare service billed
Return visit (30+ min)
142
$16,473
$113
New patient visit (45+ min)
72
$10,061
$140
Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus
32
$4,473
$140
Short return visit (20+ min)
48
$3,951
$81
Long return visit (40+ min)
20
$3,404
$170
New patient visit (60+ min)
14
$2,820
$201
New patient visit (30+ min)
20
$1,922
$96
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen
29
$1,458
$50
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)
33
$551
$16
Automated urinalysis test
52
$119
$2
Procedures Medicare counted
Procedure volume Medicare published
Removal of tissue
1-10
—None
Who their Medicare patients are
313 Original Medicare patients in 2024. Average age 76 · Women 58% · Health risk score 0.86. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.
The office billed $170,029, Medicare allowed $63,534 and paid $48,516; for 603 services of 47 kinds; $177 of it was for drugs given in the office and $48,339 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
2024
313
603
76
0.86
$170,029
$48,516
2023
406
648
78
1.74
$431,411
$66,393
2022
496
709
78
1.77
$460,902
$80,853
2021
442
626
78
1.51
$406,200
$74,279
2020
339
502
76
2.11
$330,292
$55,062
2019
470
660
78
1.80
$422,404
$69,764
2018
489
691
78
2.12
$371,166
$84,393
2017
599
823
78
2.05
$426,863
$136,843
2016
531
685
79
1.96
$348,277
$80,262
2015
391
516
79
1.98
$245,218
$58,395
2014
629
812
78
1.97
$375,241
$90,480
2013
507
680
77
1.82
$303,786
$71,061
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: 11 services
Original Medicare services billed in 2023
Emergency department visit with high level of medical decision making
177
$29,751
$163
Critical care, first 30-74 minutes
44
$9,157
$208
Emergency department visit with moderate level of medical decision making
62
$6,517
$103
Return visit (30+ min)
45
$5,084
$113
New patient visit (45+ min)
24
$3,146
$131
Critical care, each additional 30 minutes
12
$2,023
$101
Long return visit (40+ min)
12
$1,920
$160
Short return visit (20+ min)
21
$1,464
$70
X-ray of chest, 1 view
44
$355
$8
Ultrasound of heart, follow-up
11
$249
$23
Automated urinalysis test
18
$40
$2
2022: 12 services
Original Medicare services billed in 2022
Emergency department visit with high level of medical decision making
229
$41,531
$180
Critical care, first 30-74 minutes
41
$9,824
$240
Emergency department visit with moderate level of medical decision making
59
$6,683
$113
Return visit (30+ min)
36
$4,204
$114
Long return visit (40+ min)
21
$3,697
$176
New patient visit (45+ min)
20
$2,742
$137
Critical care, each additional 30 minutes
12
$2,182
$121
Emergency department visit with low level of medical decision making
32
$1,961
$61
Short return visit (20+ min)
24
$1,381
$58
New patient visit (30+ min)
12
$983
$82
X-ray of chest, 1 view
44
$361
$8
Automated urinalysis test
15
$33
$2
2021: 10 services
Original Medicare services billed in 2021
Emergency department visit with high level of medical decision making
218
$40,696
$181
Critical care, first 30-74 minutes
41
$9,837
$240
Return visit (30+ min)
47
$5,102
$109
Emergency department visit with moderate level of medical decision making
43
$4,966
$113
Short return visit (20+ min)
35
$2,748
$79
Long return visit (40+ min)
16
$2,458
$154
Critical care, each additional 30 minutes
13
$2,420
$121
Emergency department visit with low level of medical decision making
22
$1,391
$63
X-ray of chest, 1 view
51
$441
$8
Automated urinalysis test
13
$29
$2
2020: 7 services
Original Medicare services billed in 2020
Emergency department visit with high level of medical decision making
162
$26,013
$161
Critical care, first 30-74 minutes
65
$14,274
$216
Return visit (30+ min)
41
$3,720
$91
Emergency department visit with moderate level of medical decision making
33
$3,527
$107
Short return visit (20+ min)
13
$981
$70
X-ray of chest, 1 view
45
$389
$9
Automated urinalysis test
11
$25
$2
2019: 8 services
Original Medicare services billed in 2019
Emergency department visit with high level of medical decision making
267
$41,245
$151
Critical care, first 30-74 minutes
60
$11,875
$198
Emergency department visit with moderate level of medical decision making
52
$5,307
$102
Return visit (30+ min)
33
$3,085
$93
Short return visit (20+ min)
24
$1,482
$59
Emergency department visit with low level of medical decision making
23
$1,246
$54
X-ray of chest, 1 view
51
$429
$8
Ultrasound of heart, follow-up
11
$260
$24
2018: 6 services
Original Medicare services billed in 2018
Emergency department visit with high level of medical decision making
325
$56,588
$167
Critical care, first 30-74 minutes
47
$10,417
$222
Emergency department visit with moderate level of medical decision making
76
$8,810
$114
Emergency department visit with low level of medical decision making
31
$1,874
$59
X-ray of chest, 1 view
64
$610
$9
Ultrasound of heart, follow-up
17
$449
$26
2017: 8 services
Original Medicare services billed in 2017
Emergency department visit with high level of medical decision making
419
$93,435
$214
Critical care, first 30-74 minutes
61
$17,232
$282
Emergency department visit with moderate level of medical decision making
91
$13,196
$143
Emergent insertion of breathing tube into windpipe using an endoscope
11
$2,156
$180
Emergency department visit with low level of medical decision making
31
$2,139
$69
Insertion of non-tunneled central venous tube for infusion (5 years or older)
11
$1,706
$155
X-ray of chest, 1 view, front
81
$993
$12
Ultrasound of heart, follow-up
13
$443
$34
2016: 5 services
Original Medicare services billed in 2016
Emergency department visit with high level of medical decision making
377
$56,742
$146
Critical care, first 30-74 minutes
54
$10,437
$193
Emergency department visit with moderate level of medical decision making
77
$7,769
$100
Emergency department visit with low level of medical decision making
38
$1,899
$50
X-ray of chest, 1 view, front
61
$504
$8
2015: 5 services
Original Medicare services billed in 2015
Emergency department visit with high level of medical decision making
292
$43,887
$149
Emergency department visit with moderate level of medical decision making
51
$5,265
$101
Critical care, first 30-74 minutes
24
$4,611
$192
Emergency department visit with low level of medical decision making
20
$1,122
$53
X-ray of chest, 1 view, front
51
$422
$8
2014: 5 services
Original Medicare services billed in 2014
Emergency department visit with high level of medical decision making
414
$61,794
$146
Critical care, first 30-74 minutes
66
$13,081
$195
Emergency department visit with moderate level of medical decision making
95
$9,236
$96
Emergency department visit with low level of medical decision making
47
$2,247
$48
X-ray of chest, 1 view, front
85
$693
$8
2013: 6 services
Original Medicare services billed in 2013
Emergency department visit with high level of medical decision making
327
$48,313
$142
Emergency department visit with moderate level of medical decision making
98
$9,357
$94
Critical care, first 30-74 minutes
36
$6,880
$191
Emergency department visit with low level of medical decision making
49
$2,458
$50
X-ray of chest, 1 view, front
61
$486
$8
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
27
$197
$7
Medicaid work
$13,869 in 2023
Medicaid paid $13,869 for 365 billed services this clinician did in 2023, up to 35 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 2023
EMERGENCY DEPARTMENT VISIT HIGH MDM
168
$7,007
EMERGENCY DEPT VISIT MOD MDM
197
$6,862
Medicaid work by year
2023
365
2
35
$13,869
2022
279
3
30
$8,382
2021
207
3
20
$8,304
2020
108
3
22
$4,245
2019
237
3
22
$8,948
2018
550
3
29
$21,118
See the largest Medicaid services in earlier years
2022
Largest Medicaid services in 2022
EMERGENCY DEPARTMENT VISIT HIGH MDM
94
$3,856
EMERGENCY DEPT VISIT LOW MDM
117
$2,322
EMERGENCY DEPT VISIT MOD MDM
68
$2,203
2021
Largest Medicaid services in 2021
EMERGENCY DEPARTMENT VISIT HIGH MDM
153
$6,434
EMERGENCY DEPT VISIT LOW MDM
40
$1,213
EMERGENCY DEPT VISIT MOD MDM
14
$657
2020
Largest Medicaid services in 2020
EMERGENCY DEPARTMENT VISIT HIGH MDM
62
$2,877
EMERGENCY DEPT VISIT LOW MDM
30
$851
EMERGENCY DEPT VISIT MOD MDM
16
$517
2019
Largest Medicaid services in 2019
EMERGENCY DEPARTMENT VISIT HIGH MDM
84
$5,118
EMERGENCY DEPT VISIT LOW MDM
124
$2,940
EMERGENCY DEPT VISIT MOD MDM
29
$890
2018
Largest Medicaid services in 2018
EMERGENCY DEPARTMENT VISIT HIGH MDM
192
$11,137
EMERGENCY DEPT VISIT MOD MDM
136
$4,995
EMERGENCY DEPT VISIT LOW MDM
222
$4,985
Drugs they prescribed that Part D paid
$7,541
Pharmacies billed $7,541 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 4% of their Part D prescriptions (11 of 256) in 2024. At or below the middle of the specialty; the typical emergency medicine clinician is at 12%.
226 generic and fewer than 11 brand-name prescriptions · $7,541 in drug cost · 118 antibiotic prescriptions to 105 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
Cefpodoxime Proxetil
21
$824
$39
Albuterol Sulfate Hfa
18
$395
$21
Amoxicillin-Clavulanate Potass
26
$188
$7
Azithromycin
38
$134
$4
Prednisone
18
$40
$2
Year by year
Part D prescribing by year
2024
256
191
4% (11)
—None
$7,541
2023
174
130
9% (16)
—None
$2,666
2022
163
118
10% (17)
—None
$1,677
2021
138
105
—None
—None
$1,710
2020
118
72
10% (12)
—None
$1,466
2019
112
81
15% (17)
—None
$2,501
2018
136
92
16% (22)
—None
$1,645
2017
131
108
18% (24)
8%
$2,485
2016
104
81
19% (20)
—None
$1,675
2015
87
58
17% (15)
14%
$1,328
2014
108
83
26% (28)
—None
$1,885
2013
115
86
24% (28)
—None
$1,216
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 2 drugs
Part D drugs prescribed in 2023
Cephalexin
29
$293
$10
Prednisone
15
$58
$4
2022: 4 drugs
Part D drugs prescribed in 2022
Cephalexin
25
$208
$8
Amoxicillin-Clavulanate Potass
13
$100
$8
Azithromycin
12
$76
$6
Prednisone
14
$47
$3
2021: 1 drug
Part D drugs prescribed in 2021
Cephalexin
30
$168
$6
2020: 2 drugs
Part D drugs prescribed in 2020
Cephalexin
16
$118
$7
Ondansetron Odt
13
$101
$8
2019: 2 drugs
Part D drugs prescribed in 2019
Divalproex
11
$644
$59
Cephalexin
19
$138
$7
2018: 2 drugs
Part D drugs prescribed in 2018
Cephalexin
28
$227
$8
Hydrocodone-Acetaminophen
13
$63
$5
2017: 2 drugs
Part D drugs prescribed in 2017
Cephalexin
20
$261
$13
Hydrocodone-Acetaminophen
11
$53
$5
2016: 2 drugs
Part D drugs prescribed in 2016
Cephalexin
15
$97
$6
Hydrocodone-Acetaminophen
13
$82
$6
2015: 1 drug
Part D drugs prescribed in 2015
Hydrocodone-Acetaminophen
12
$57
$5
2014: 2 drugs
Part D drugs prescribed in 2014
Hydrocodone-Acetaminophen
21
$154
$7
Sulfamethoxazole-Trimethoprim
13
$101
$8
2013: 2 drugs
Part D drugs prescribed in 2013
Cephalexin
14
$148
$11
Hydrocodone-Acetaminophen
22
$128
$6
Professional record
NPI
1154572345
Licence
CA A109167California A109167: Current · expires 2027-08-31
Trained
Loyola University of Chicago, Stritch School of Medicine, 2008