Medicare does not list them as allowed to order and refer
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. Ahn’s office at (408) 241-2397 to ask if they take your plan before you enroll.
California Medical Board record
Licence C42795 · Cancelled
Licence status: Cancelled · since 1990 · University of Iowa College of Medicine.
License has been voluntarily canceled, or the license has been expired for at least five years and has not been renewed. No practice is permitted.
Matched on the licence number without its letter prefix; check the name before relying on it.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Drugs they prescribed that Part D paid
$1,938
Pharmacies billed $1,938 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
323 generic and fewer than 11 brand-name prescriptions · $1,938 in drug cost · 225 antibiotic prescriptions to 146 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
Amoxicillin
124
$1,069
$6
Chlorhexidine Gluconate
16
$263
$8
Amoxicillin-Clavulanate Potass
19
$238
$11
Ibuprofen
51
$216
$3
Clindamycin
11
$107
$6
Year by year
Part D prescribing by year
2024
324
158
—None
—None
$1,938
2023
326
139
—None
—None
$1,989
2022
260
107
—None
—None
$1,405
2021
213
118
—None
—None
$1,180
2020
216
104
—None
—None
$1,939
2019
277
129
—None
—None
$1,905
2018
271
130
—None
—None
$1,895
2017
214
108
5% (11)
—None
$1,554
2016
112
61
—None
—None
$691
2015
168
70
—None
—None
$1,351
2014
134
56
—None
0%
$1,110
2013
76
45
—None
—None
$741
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 5 drugs
Part D drugs prescribed in 2023
Amoxicillin
157
$899
$6
Ibuprofen
96
$341
$4
Clindamycin
16
$239
$15
Amoxicillin-Clavulanate Potass
11
$206
$19
Chlorhexidine Gluconate
24
$169
$7
2022: 3 drugs
Part D drugs prescribed in 2022
Amoxicillin
120
$646
$5
Ibuprofen
86
$321
$4
Chlorhexidine Gluconate
25
$145
$6
2021: 3 drugs
Part D drugs prescribed in 2021
Amoxicillin
111
$517
$5
Ibuprofen
54
$196
$4
Amoxicillin-Clavulanate Potass
14
$183
$13
2020: 4 drugs
Part D drugs prescribed in 2020
Amoxicillin
97
$512
$5
Amoxicillin-Clavulanate Potass
17
$340
$20
Ibuprofen
53
$209
$4
Chlorhexidine Gluconate
22
$180
$8
2019: 5 drugs
Part D drugs prescribed in 2019
Amoxicillin
129
$694
$5
Amoxicillin-Clavulanate Potass
13
$311
$24
Ibuprofen
62
$290
$5
Clindamycin
20
$277
$14
Chlorhexidine Gluconate
22
$164
$7
2018: 5 drugs
Part D drugs prescribed in 2018
Amoxicillin
131
$785
$6
Ibuprofen
63
$289
$5
Amoxicillin-Clavulanate Potass
16
$256
$16
Clindamycin
15
$166
$11
Chlorhexidine Gluconate
18
$133
$7
2017: 5 drugs
Part D drugs prescribed in 2017
Amoxicillin
100
$622
$6
Ibuprofen
49
$309
$6
Amoxicillin-Clavulanate Potass
11
$228
$21
Clindamycin
14
$172
$12
Ibu
13
$31
$2
2016: 2 drugs
Part D drugs prescribed in 2016
Amoxicillin
57
$330
$6
Ibuprofen
32
$129
$4
2015: 3 drugs
Part D drugs prescribed in 2015
Amoxicillin
62
$395
$6
Chlorhexidine Gluconate
37
$367
$10
Ibuprofen
40
$191
$5
2014: 3 drugs
Part D drugs prescribed in 2014
Chlorhexidine Gluconate
37
$394
$11
Amoxicillin
54
$384
$7
Ibuprofen
24
$120
$5
2013: 3 drugs
Part D drugs prescribed in 2013
Amoxicillin
31
$241
$8
Chlorhexidine Gluconate
14
$135
$10
Ibuprofen
15
$56
$4
Money from drug and device companies
$505 in 2025
Industry payments by year
2025
2
21
$37
$505
2024
2
18
$26
$523
2023
1
9
—None
$257
2022
1
10
—None
$292
2021
2
20
—None
$358
2020
2
2
—None
$38
2019
1
15
—None
$292
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.