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Barbara R Sommer, MD

Psychiatry · Palo Alto

NPI 1881729093

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
4
1 carrier
Office
1

Offices

1 location

Plans that list them

4 plans · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Sommer’s office at (650) 723-8567 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
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026

California Medical Board record

Licence G54905 · Current

Licensed to practise in California · since 1985 · expires 2028-08-31 · New York 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 Psychiatry and Neurology - Psychiatry

Drugs they prescribed that Part D paid

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their 89 Part D prescriptions in 2023.

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

Year by year

Part D prescribing by year
202389None0% (0)27%$12,598
2022165250% (0)16%$22,479
2021193None0% (0)33%$59,666
2020255230% (0)22%$32,738
2019423470% (0)9%$28,260
2018390510% (0)5%$12,565
2017445620% (0)6%$18,727
2016166390% (0)None$8,739
2015550610% (0)12%$47,847
2014818820% (0)15%$77,682
20131,109900% (0)16%$77,363

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
Fetzima24$11,139$464
Escitalopram11$209$19
Mirtazapine19$179$9
Gabapentin12$52$4

2022: 6 drugs

Part D drugs prescribed in 2022
Fetzima20$8,841$442
Gabapentin13$640$49
Mirtazapine30$598$20
Duloxetine16$561$35
Escitalopram18$341$19
Venlafaxine Hcl Er19$326$17

2021: 7 drugs

Part D drugs prescribed in 2021
NuplazidParkinson's psychosis12$44,381$3,698
FetzimaNone24$10,104$421
RivastigmineNone18$2,313$129
GabapentinNone16$274$17
Venlafaxine Hcl ErNone20$245$12
EscitalopramNone23$231$10
MirtazapineNone15$137$9

2020: 10 drugs

Part D drugs prescribed in 2020
Fetzima26$10,426$401
Rivastigmine11$1,694$154
Gabapentin36$932$26
Quetiapine25$646$26
Trazodone14$513$37
Mirtazapine27$352$13
Venlafaxine Hcl Er25$270$11
Escitalopram12$190$16
Lithium Carbonate14$152$11
Duloxetine11$143$13

2019: 13 drugs

Part D drugs prescribed in 2019
Fetzima20$7,232$362
Venlafaxine Hcl Er55$1,158$21
Mirtazapine28$1,090$39
Gabapentin37$984$27
Quetiapine29$625$22
Duloxetine29$513$18
Trazodone25$431$17
Clozapine16$379$24
Risperidone11$159$14
Sertraline13$156$12
Olanzapine28$148$5
Lithium Carbonate17$113$7
Escitalopram17$101$6

2018: 12 drugs

Part D drugs prescribed in 2018
Mirtazapine64$2,324$36
Duloxetine27$867$32
Bupropion Xl29$829$29
Quetiapine29$776$27
Venlafaxine Hcl Er40$673$17
Gabapentin22$432$20
Sertraline26$233$9
Trazodone16$204$13
Lithium Carbonate27$177$7
Escitalopram19$137$7
Olanzapine14$132$9
Divalproex14$124$9

2017: 12 drugs

Part D drugs prescribed in 2017
Mirtazapine80$3,722$47
Bupropion Xl23$955$42
Duloxetine17$736$43
Venlafaxine Hcl Er33$469$14
Quetiapine23$456$20
Gabapentin26$371$14
Escitalopram22$313$14
Sertraline51$313$6
Fluoxetine11$231$21
Divalproex26$206$8
Lithium Carbonate21$123$6
Donepezil15$107$7

2016: 6 drugs

Part D drugs prescribed in 2016
Mirtazapine11$348$32
Quetiapine15$217$14
Venlafaxine Hcl Er24$173$7
Divalproex14$111$8
Sertraline24$107$4
Citalopram Hbr11$40$4

2015: 15 drugs

Part D drugs prescribed in 2015
Lyrica15$5,945$396
Quetiapine57$4,972$87
Clomipramine18$4,905$272
Duloxetine37$3,604$97
Eszopiclone12$1,016$85
Venlafaxine Hcl Er41$863$21
Bupropion Xl27$845$31
Mirtazapine44$503$11
Lamotrigine48$429$9
Sertraline19$294$15
Fluoxetine24$215$9
Bupropion Hcl Sr11$215$20
Citalopram Hbr29$157$5
Escitalopram12$142$12
Divalproex12$90$7

2014: 22 drugs

Part D drugs prescribed in 2014
Abilify19$14,803$779
Latuda18$11,886$660
Duloxetine40$8,702$218
Namenda26$6,654$256
Divalproex Sodium Er13$3,555$273
Quetiapine67$2,477$37
Venlafaxine Hcl Er60$2,362$39
Bupropion Xl40$1,527$38
Mirtazapine85$1,210$14
Escitalopram25$674$27
Risperidone29$595$21
Donepezil31$408$13
Lamotrigine39$379$10
Sertraline38$367$10
Gabapentin23$343$15
Clozapine20$249$12
Fluoxetine24$248$10
Divalproex15$239$16
Citalopram Hbr27$180$7
Clonazepam19$148$8
Zolpidem12$124$10
Nortriptyline11$56$5

2013: 29 drugs

Part D drugs prescribed in 2013
Abilify36$21,858$607
Cymbalta33$10,237$310
Namenda36$8,382$233
Olanzapine32$4,238$132
Tranylcypromine Sulfate12$3,177$265
Quetiapine107$3,109$29
Divalproex Sodium Er16$2,485$155
Mirtazapine115$2,051$18
Bupropion Xl56$1,991$36
Escitalopram37$1,819$49
Venlafaxine Hcl Er71$1,415$20
Risperidone35$833$24
Lamotrigine53$831$16
Clozapine43$616$14
Sertraline54$559$10
Donepezil34$511$15
Bupropion Hcl Sr19$505$27
Divalproex21$424$20
Lithium Carbonate28$366$13
Gabapentin19$232$12
Lorazepam32$201$6
Zolpidem28$196$7
Citalopram Hbr26$179$7
Buspirone12$162$14
Trazodone20$121$6
Temazepam14$110$8
Clonazepam18$107$6
Alprazolam11$97$9
Nortriptyline13$68$5

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
76.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1881729093
Licence
CA G54905California G54905: Current · expires 2028-08-31
More record details
Sole proprietor
No
Taxonomy
Psychiatry (2084P0800X)
Mailing address
401 Quarry Rd, Room 2338, Palo Alto, CA, 94304
NPI first listed
2007-02-21
NPI last updated
2007-07-08

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