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Joe Walker, MD

Psychiatry · Los Altos

NPI 1427070754

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
27
7 carriers
Offices
2

Offices

2 locations · United Psychiatry, Inc. · Imbcs Inc

Looking this up.

Plans that list them

27 plans · 7 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Walker’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

27 of 27 plans

Plans whose provider directory lists this clinician
Advantage Care (HMO)Align Senior CareListedOct 1, 2026
Premier Care (HMO I-SNP)Align Senior CareListedOct 1, 2026
Senior Care (HMO I-SNP)Align Senior CareListedOct 1, 2026
Alignment Health Advantage PPO (PPO)Alignment Health PlanListedOct 3, 2026
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Sutter Advantage +More (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
Anthem Full Dual Advantage Aligned (HMO D-SNP)Anthem Blue CrossListedOct 3, 2026
Anthem Medicare Advantage (HMO-POS)Anthem Blue CrossListedOct 3, 2026
Anthem Prime (HMO-POS)Anthem Blue Cross Partnership PlanListedOct 3, 2026
Astiva Health C-SNP WOW - NorCal (HMO C-SNP)Astiva HealthListedSep 27, 2026
Astiva Health Premier Plan - NorCal (HMO)Astiva HealthListedSep 27, 2026
Astiva Health Savings Plan - NorCal (HMO)Astiva HealthListedSep 27, 2026
Blue Shield Inspire (HMO)Blue Shield of CaliforniaListedAug 26, 2026
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.ListedSep 1, 2026

California Medical Board record

Licence G46287 · Current

Licensed to practise in California · since 1981 · expires 2027-06-30 · University of Tennessee College of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

$26,830

Medicare paid this office $26,830 for 32 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Short return visit (20+ min)28$11,899$82
Psychotherapy with evaluation and management visit, 30 minutes24$8,914$62

Who their Medicare patients are

32 Original Medicare patients in 2024. Average age 69 · Women 41% · Health risk score 0.96. At or below the middle of the specialty; the typical psychiatry clinician is at 1.35.

Conditions among them: Depression 72% · High blood pressure 53%.

The office billed $72,500, Medicare allowed $35,953 and paid $26,830; for 336 services of 6 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
202432336690.96$72,500$26,830
202328158670.94$31,200$16,332
202228178671.09$37,810$15,720
202135253670.99$44,714$21,394
202023176651.05$23,577$13,164
201939197631.33$29,550$16,915
201839117560.96$19,945$9,976
20171139591.33$6,200$4,510

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: 2 services

Original Medicare services billed in 2023
Return visit (30+ min)20$7,630$112
Short return visit (20+ min)22$4,641$84

2022: 3 services

Original Medicare services billed in 2022
Return visit (30+ min)20$6,115$120
Short return visit (20+ min)27$5,005$77
Psychotherapy with evaluation and management visit, 30 minutes18$3,215$61

2021: 3 services

Original Medicare services billed in 2021
Short return visit (20+ min)32$8,100$83
Psychotherapy with evaluation and management visit, 30 minutes29$5,979$63
Return visit (30+ min)12$4,152$122

2020: 2 services

Original Medicare services billed in 2020
Psychotherapy with evaluation and management visit, 30 minutes20$4,759$57
Return visit (30+ min)19$4,118$76

2019: 4 services

Original Medicare services billed in 2019
Return visit (30+ min)24$7,506$97
Psychotherapy with evaluation and management visit, 30 minutes24$4,543$60
New patient visit (60+ min)22$3,835$174
Short return visit (20+ min)11$525$33

2018: 4 services

Original Medicare services billed in 2018
New patient visit (60+ min)27$3,993$148
Short return visit (20+ min)15$2,628$69
Return visit (30+ min)14$1,932$74
Psychotherapy with evaluation and management visit, 30 minutes13$1,137$49

Drugs they prescribed that Part D paid

$33,936

Pharmacies billed $33,936 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 506) in 2024. At or below the middle of the specialty; the typical psychiatry clinician is at 0%.

473 generic and 33 brand-name prescriptions · $33,936 in drug cost · 43 antipsychotic prescriptions to people over 65.

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
Aripiprazole37$2,519$68
Dextroamphetamine Sulfate14$1,401$100
Mirtazapine14$1,036$74
Bupropion Xl38$976$26
Dextroamphetamine-Amphetamine53$838$16
See all 17 drugs
Every Part D drug this clinician prescribed
Aripiprazole37$2,519$68
Dextroamphetamine Sulfate14$1,401$100
Mirtazapine14$1,036$74
Bupropion Xl38$976$26
Dextroamphetamine-Amphetamine53$838$16
Venlafaxine Hcl Er26$731$28
Quetiapine11$625$57
Trazodone25$462$18
Escitalopram11$313$28
Risperidone11$254$23
Sertraline24$239$10
Dextroamphetamine-Amphet Er12$221$18
Clonazepam33$209$6
Temazepam12$124$10
Lorazepam25$108$4
Citalopram Hbr16$108$7
Zolpidem11$62$6

Year by year

Part D prescribing by year
2024506400% (0)7%$33,936
2023374490% (0)6%$24,769
202237241None4%$25,400
2021318410% (0)6%$34,509
2020298420% (0)6%$66,802
2019413450% (0)14%$86,348
2018379450% (0)10%$65,980
2017199200% (0)None$32,967
2016135None0% (0)None$57,440
2015197None0% (0)19%$62,595
2014187120% (0)20%$55,425
2013215110% (0)19%$53,405

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

See the drugs prescribed each year

2023: 14 drugs

Part D drugs prescribed in 2023
Quetiapine13$2,921$225
Bupropion Xl35$2,414$69
Dextroamphetamine Sulfate12$2,344$195
Aripiprazole11$2,068$188
Dextroamphetamine-Amphetamine39$1,523$39
Trazodone27$849$31
Risperidone12$477$40
Sertraline20$437$22
Dextroamphetamine-Amphet Er11$391$36
Temazepam12$249$21
Duloxetine14$196$14
Clonazepam19$144$8
Lorazepam17$136$8
Gabapentin20$99$5

2022: 11 drugs

Part D drugs prescribed in 2022
Aripiprazole21$10,487$499
Bupropion Xl31$2,591$84
Dextroamphetamine-Amphetamine44$1,630$37
Doxepin16$1,159$72
Escitalopram13$416$32
Dextroamphetamine-Amphet Er12$326$27
Venlafaxine Hcl Er13$313$24
Trazodone17$264$16
Sertraline25$226$9
Lorazepam19$108$6
Clonazepam16$93$6

2021: 14 drugs

Part D drugs prescribed in 2021
Rexulti12$15,804$1,317
Aripiprazole20$4,368$218
Bupropion Xl29$1,430$49
Dextroamphetamine Sulfate11$1,279$116
Doxepin12$949$79
Dextroamphetamine-Amphet Er12$929$77
Dextroamphetamine-Amphetamine18$898$50
Quetiapine13$365$28
Escitalopram12$312$26
Fluoxetine19$275$14
Clonazepam26$169$6
Lorazepam12$54$5
Temazepam11$29$3
Zolpidem14$24$2

2020: 11 drugs

Part D drugs prescribed in 2020
Aripiprazole27$7,210$267
Bupropion Xl28$1,373$49
Quetiapine11$491$45
Trazodone16$405$25
Venlafaxine Hcl Er15$304$20
Fluoxetine18$291$16
Mirtazapine11$288$26
Clonazepam20$112$6
Zolpidem18$87$5
Lorazepam21$69$3
Temazepam11$29$3

2019: 12 drugs

Part D drugs prescribed in 2019
Rexulti23$37,025$1,610
Aripiprazole51$11,258$221
Dextroamphetamine-Amphet Er12$3,221$268
Bupropion Xl47$2,005$43
Quetiapine29$1,092$38
Dextroamphetamine-Amphetamine12$411$34
Lorazepam30$258$9
Sertraline20$200$10
Escitalopram11$200$18
Citalopram Hbr11$173$16
Clonazepam14$53$4
Temazepam12$33$3

2018: 12 drugs

Part D drugs prescribed in 2018
Aripiprazole31$23,079$744
Bupropion Xl19$931$49
Mirtazapine39$645$17
Trazodone19$629$33
Fluoxetine27$575$21
Quetiapine22$540$25
Dextroamphetamine-Amphetamine12$431$36
Zolpidem12$198$17
Escitalopram15$180$12
Clonazepam21$138$7
Lorazepam19$109$6
Sertraline11$76$7

2017: 8 drugs

Part D drugs prescribed in 2017
Aripiprazole38$23,782$626
Quetiapine11$370$34
Trazodone13$222$17
Zolpidem11$213$19
Fluoxetine14$212$15
Lorazepam22$156$7
Escitalopram13$145$11
Citalopram Hbr11$106$10

2016: 6 drugs

Part D drugs prescribed in 2016
Aripiprazole29$41,491$1,431
Zolpidem13$491$38
Lorazepam20$280$14
Citalopram Hbr16$240$15
Mirtazapine12$212$18
Escitalopram12$188$16

2015: 6 drugs

Part D drugs prescribed in 2015
Abilify25$41,136$1,645
Aripiprazole19$16,556$871
Lorazepam34$440$13
Zolpidem27$437$16
Citalopram Hbr29$296$10
Escitalopram17$187$11

2014: 8 drugs

Part D drugs prescribed in 2014
Abilify26$50,646$1,948
Bupropion Xl15$829$55
Olanzapine11$740$67
Lorazepam35$500$14
Escitalopram14$254$18
Zolpidem27$235$9
Citalopram Hbr15$222$15
Fluoxetine13$38$3

2013: 9 drugs

Part D drugs prescribed in 2013
Abilify27$43,809$1,623
Olanzapine12$3,903$325
Mirtazapine19$1,289$68
Bupropion Xl16$1,204$75
Lorazepam31$406$13
Bupropion Hcl Sr12$372$31
Citalopram Hbr26$293$11
Zolpidem24$181$8
Fluoxetine11$33$3

Professional record

NPI
1427070754
Licence
CA G46287California G46287: Current · expires 2027-06-30
Group
United Psychiatry, Inc. · Imbcs Inc
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Psychiatry (2084P0800X)
Mailing address
Po Box 254947, Sacramento, CA, 95865
NPI first listed
2006-07-24
NPI last updated
2007-07-08

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