A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Paula Adriana Arriaga’s office at (415) 452-1200 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
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Who their Medicare patients are
45 Original Medicare patients in 2024. Average age 68 · Under 65 27% · Women 36% · Also on Medicaid 38% · Health risk score 1.13. At or below the middle of the specialty; the typical physician assistant clinician is at 1.31.
Conditions among them: High blood pressure 40%.
The office billed $28,695, Medicare allowed $6,737 and paid $4,928; for 82 services of 29 kinds.
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
45
82
68
1.13
$28,695
$4,928
2023
59
81
69
1.09
$33,402
$6,306
2022
44
58
71
1.01
$20,004
$5,088
2021
58
68
68
0.95
$26,026
$5,741
2020
68
94
70
1.00
$25,281
$5,856
2019
92
192
71
1.10
$42,422
$9,554
2018
204
300
72
1.14
$70,979
$19,198
2017
168
299
69
1.15
$63,851
$18,658
2016
342
457
66
1.58
$133,266
$28,673
2015
392
522
62
1.76
$162,784
$30,301
2014
162
219
61
1.17
$61,345
$13,101
2013
172
210
58
1.25
$57,120
$10,826
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: 1 service
Original Medicare services billed in 2023
New patient visit (45+ min)
16
$1,996
$125
2022: 1 service
Original Medicare services billed in 2022
New patient visit (45+ min)
11
$1,566
$142
2021: 2 services
Original Medicare services billed in 2021
New patient visit (30+ min)
12
$1,307
$109
Short return visit
12
$705
$59
2020: 1 service
Original Medicare services billed in 2020
New patient visit (30+ min)
36
$3,344
$93
2019: 3 services
Original Medicare services billed in 2019
New patient visit (45+ min)
23
$2,267
$99
New patient visit (30+ min)
25
$1,995
$80
Emergency department visit with low level of medical decision making
12
$548
$46
2018: 4 services
Original Medicare services billed in 2018
New patient visit (45+ min)
83
$8,959
$108
Return visit (30+ min)
65
$4,721
$72
Emergency department visit with low level of medical decision making
25
$1,172
$47
X-ray of chest, 2 views
13
$224
$17
2017: 4 services
Original Medicare services billed in 2017
New patient visit (45+ min)
63
$7,443
$118
Return visit (30+ min)
47
$4,167
$80
Emergency department visit with low level of medical decision making
25
$1,066
$41
X-ray of chest, 2 views, front and side
11
$270
$23
2016: 6 services
Original Medicare services billed in 2016
Emergency department visit with low level of medical decision making
147
$6,616
$42
Emergency department visit with moderate level of medical decision making
65
$5,301
$80
New patient visit (45+ min)
41
$4,854
$118
Emergency department visit with high level of medical decision making
32
$3,921
$123
Return visit (30+ min)
23
$1,995
$87
New patient visit (30+ min)
22
$1,824
$83
2015: 4 services
Original Medicare services billed in 2015
Emergency department visit with low level of medical decision making
228
$10,605
$40
Emergency department visit with moderate level of medical decision making
96
$8,282
$81
Emergency department visit with high level of medical decision making
61
$7,337
$120
New patient visit (45+ min)
12
$1,460
$122
2014: 4 services
Original Medicare services billed in 2014
Emergency department visit with low level of medical decision making
79
$3,653
$43
Emergency department visit with moderate level of medical decision making
35
$2,910
$83
Emergency department visit with high level of medical decision making
20
$2,518
$126
New patient visit (30+ min)
20
$1,724
$86
2013: 4 services
Original Medicare services billed in 2013
Emergency department visit with low level of medical decision making
112
$5,082
$42
Emergency department visit with moderate level of medical decision making
29
$2,392
$82
Emergency department visit with high level of medical decision making
17
$1,902
$106
Emergency department visit with straightforward medical decision making
11
$291
$26
Drugs they prescribed that Part D paid
$789
Pharmacies billed $789 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 57) in 2024. At or below the middle of the specialty; the typical physician assistant clinician is at 1%.
50 generic and fewer than 11 brand-name prescriptions · $789 in drug cost · 25 antibiotic prescriptions to 23 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.
Year by year
Part D prescribing by year
2024
57
43
0% (0)
—None
$789
2023
49
35
—None
—None
$1,253
2022
31
23
—None
—None
$395
2021
12
12
0% (0)
0%
$146
2020
53
43
—None
—None
$826
2019
124
95
12% (15)
—None
$2,196
2018
253
175
5% (12)
14%
$5,734
2017
230
142
10% (22)
11%
$5,087
2016
241
150
22% (53)
9%
$4,879
2015
290
169
23% (68)
—None
$3,804
2014
90
62
26% (23)
—None
$894
2013
129
89
32% (41)
—None
$1,667
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2018: 8 drugs
Part D drugs prescribed in 2018
Proair Hfa
11
$682
$62
Azithromycin
37
$250
$7
Nitrofurantoin Mono-Macro
11
$223
$20
Methylprednisolone
14
$170
$12
Cephalexin
16
$117
$7
Doxycycline Hyclate
12
$80
$7
Amoxicillin
16
$70
$4
Prednisone
11
$44
$4
2017: 3 drugs
Part D drugs prescribed in 2017
Azithromycin
28
$155
$6
Amoxicillin
13
$59
$5
Prednisone
13
$50
$4
2016: 6 drugs
Part D drugs prescribed in 2016
Hydrocodone-Acetaminophen
26
$127
$5
Ibuprofen
28
$104
$4
Acetaminophen-Codeine
20
$95
$5
Azithromycin
16
$83
$5
Cephalexin
12
$67
$6
Prednisone
13
$40
$3
2015: 6 drugs
Part D drugs prescribed in 2015
Cephalexin
26
$183
$7
Hydrocodone-Acetaminophen
33
$166
$5
Ibuprofen
25
$86
$3
Oxycodone-Acetaminophen
13
$86
$7
Sulfamethoxazole-Trimethoprim
16
$72
$5
Acetaminophen-Codeine
13
$43
$3
2014: 1 drug
Part D drugs prescribed in 2014
Hydrocodone-Acetaminophen
13
$96
$7
2013: 2 drugs
Part D drugs prescribed in 2013
Hydrocodone-Acetaminophen
26
$177
$7
Cephalexin
15
$162
$11
Money from drug and device companies
$653 in 2025
Industry payments by year
2025
5
5
—None
$653
2024
2
2
—None
$264
2023
2
2
—None
$150
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.