A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Annamalai’s office at (408) 972-7000 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
Licensed to practise in California · since 1999 · expires 2027-01-31 · Bharathidasan University, Thanjavur Medical College.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
School, training and certification
What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.
Specialty certification
American Board of Obstetrics and Gynecology - Obstetrics and Gynecology
Medicaid work
$260 in 2024
Medicaid paid $260 for 66 billed services this clinician did in 2024, up to 22 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 2024
Short return visit
36
$260
TOBACCO NON-USER
30
$0
Medicaid work by year
2024
66
2
22
$260
2023
77
1
16
$57
2022
53
1
14
$0
2020
15
1
12
$0
2019
13
1
13
$39
2018
13
1
12
$39
See the largest Medicaid services in earlier years
2023
Largest Medicaid services in 2023
Short return visit
77
$57
2022
Largest Medicaid services in 2022
Short return visit
53
$0
2020
Largest Medicaid services in 2020
Short return visit
15
$0
2019
Largest Medicaid services in 2019
Short return visit
13
$39
2018
Largest Medicaid services in 2018
Short return visit
13
$39
Drugs they prescribed that Part D paid
$5,965
Pharmacies billed $5,965 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 177) in 2024. At or below the middle of the specialty; the typical obstetrics & gynecology clinician is at 0%.
169 generic and fewer than 11 brand-name prescriptions · $5,965 in drug cost · 28 antibiotic prescriptions to 16 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
Estradiol
45
$1,483
$33
Trospium Chloride
27
$798
$30
Nystatin-Triamcinolone
16
$725
$45
Clobetasol Propionate
11
$246
$22
Year by year
Part D prescribing by year
2024
177
66
0% (0)
—None
$5,965
2023
176
73
0% (0)
11%
$10,401
2022
145
64
—None
15%
$11,660
2021
137
65
0% (0)
15%
$15,685
2020
145
66
0% (0)
18%
$18,258
2019
152
68
—None
14%
$18,273
2018
145
66
—None
16%
$13,353
2017
153
56
—None
27%
$17,875
2016
127
54
—None
31%
$15,405
2015
131
50
—None
28%
$13,724
2014
129
49
—None
32%
$23,747
2013
148
57
—None
37%
$18,846
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 4 drugs
Part D drugs prescribed in 2023
Estradiol
44
$1,566
$36
Nystatin-Triamcinolone
20
$962
$48
Trospium Chloride
16
$524
$33
Clobetasol Propionate
11
$262
$24
2022: 2 drugs
Part D drugs prescribed in 2022
Estradiol
51
$1,845
$36
Nystatin-Triamcinolone
13
$346
$27
2021: 1 drug
Part D drugs prescribed in 2021
Estradiol
45
$1,728
$38
2020: 2 drugs
Part D drugs prescribed in 2020
Estring
11
$5,889
$535
Estradiol
41
$1,655
$40
2019: 3 drugs
Part D drugs prescribed in 2019
Estrace
11
$3,198
$291
Estradiol
40
$1,923
$48
Nystatin-Triamcinolone
14
$819
$58
2018: 4 drugs
Part D drugs prescribed in 2018
Estrace
16
$2,112
$132
Trospium Chloride
14
$1,008
$72
Nystatin-Triamcinolone
13
$648
$50
Estradiol
19
$438
$23
2017: 3 drugs
Part D drugs prescribed in 2017
Premarin
14
$6,073
$434
Estradiol
19
$499
$26
Oxybutynin Chloride Er
12
$277
$23
2016: 2 drugs
Part D drugs prescribed in 2016
Premarin
19
$8,006
$421
Estradiol
19
$588
$31
2015: 2 drugs
Part D drugs prescribed in 2015
Premarin
14
$4,578
$327
Estradiol
24
$692
$29
2014: 5 drugs
Part D drugs prescribed in 2014
Viread
11
$9,813
$892
Premarin
15
$4,414
$294
Lamivudine
12
$1,951
$163
Oxybutynin Chloride Er
12
$991
$83
Estradiol
21
$405
$19
2013: 5 drugs
Part D drugs prescribed in 2013
Premarin
16
$3,879
$242
Lamivudine
12
$1,954
$163
Nystatin-Triamcinolone
12
$1,058
$88
Estradiol
27
$537
$20
Medroxyprogesterone Acetate
12
$201
$17
Professional record
NPI
1497831903
Licence
CA A69842California A69842: Current · expires 2027-01-31
More record details
Sole proprietor
No
Medicaid ID
CA 00A698420
Taxonomy
Federal specialty code 207V00000X (207V00000X)
Mailing address
1800 Harrison St Fl 7, Oakland, CA, 94612
NPI first listed
2006-10-27
NPI last updated
2021-12-06
This is when the NPI record was last certified, not a medical board exam.
This office lists an electronic records connection.