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Siavosh Vossough, MD

Dermatology · Los Altos

NPI 1922192111

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
14
2 carriers
Office
1

Offices

1 location

Looking this up.

Plans that list them

14 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Vossough’s office at (650) 949-2771 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

14 of 14 plans

Plans whose provider directory lists this clinician
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 smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026

California Medical Board record

Licence A61091 · Current

Licensed to practise in California · since 1996 · expires 2028-01-31 · Albany Medical College of Union University.

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

Original Medicare doctor bills

$144,819

Medicare paid this office $144,819 for 414 people.

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

Largest Original Medicare bills
Short return visit (20+ min)312$46,082$80
Destruction of precancer skin growth, 1 growth240$23,149$60
Return visit (30+ min)105$15,421$116
Destruction of skin growth, 1-14 growths101$15,182$114
Destruction of precancer skin growth, 2-14 growths179$12,076$7
See all 9 services
Every Original Medicare service billed
Short return visit (20+ min)312$46,082$80
Destruction of precancer skin growth, 1 growth240$23,149$60
Return visit (30+ min)105$15,421$116
Destruction of skin growth, 1-14 growths101$15,182$114
Destruction of precancer skin growth, 2-14 growths179$12,076$7
Biopsy of related skin growth, first growth78$9,310$95
New patient visit (30+ min)82$7,257$89
Complicated repair of wound of trunk, 2.6-7.5 cm12$4,784$399
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm12$1,495$125

Procedures Medicare counted

Procedure volume Medicare published
Melanoma (skin cancer) excision19More than 74% of doctors who do this
Removal of skin lesions862More than 92% of doctors who do this
Removal or shaving of skin growth1-10None
Skin biopsy142More than 80% of doctors who do this

Who their Medicare patients are

414 Original Medicare patients in 2024. Average age 77 · Women 48% · Health risk score 0.86. At or below the middle of the specialty; the typical dermatology clinician is at 1.01.

Conditions among them: High blood pressure 59% · Coronary heart disease 24% · Cancer 17% · Diabetes 15% · Atrial fibrillation 15% · Chronic kidney disease 14% · Heart failure 9% · Depression 9% · COPD 7% · Stroke 6% · Dementia 4%.

The office billed $320,930, Medicare allowed $195,814 and paid $144,819; for 3,266 services of 38 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
20244143,266770.86$320,930$144,819
20233703,016770.84$278,974$121,185
20223662,960770.85$274,141$119,195
20213212,954770.87$247,422$121,838
20202952,545770.95$214,272$99,824
20193072,624770.93$235,677$105,739
20183082,223760.93$199,848$91,833
20173182,209760.91$216,883$98,399
20163212,576760.88$229,894$102,521
20152972,480750.85$222,761$100,025
20143002,319750.82$204,174$103,986
20132722,146750.87$180,426$93,996

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: 10 services

Original Medicare services billed in 2023
Short return visit (20+ min)278$37,086$77
Destruction of precancer skin growth, 1 growth225$20,296$57
Destruction of precancer skin growth, 2-14 growths188$11,722$7
Destruction of skin growth, 1-14 growths81$11,110$112
Return visit (30+ min)78$11,080$111
Biopsy of related skin growth, first growth70$7,520$95
New patient visit (30+ min)82$7,231$88
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm13$2,158$135
Biopsy of ear11$1,010$84
Biopsy of related skin growth, each additional growth13$760$48

2022: 10 services

Original Medicare services billed in 2022
Short return visit (20+ min)278$38,391$75
Destruction of precancer skin growth, 1 growth218$19,984$56
Destruction of skin growth, 1-14 growths87$11,828$109
Destruction of precancer skin growth, 2-14 growths178$11,024$7
Biopsy of related skin growth, first growth69$7,607$100
New patient visit (30+ min)81$6,746$83
Return visit (30+ min)53$6,718$97
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm13$2,014$144
New patient visit (45+ min)12$1,694$141
Punch biopsy, first skin growth11$1,542$128

2021: 8 services

Original Medicare services billed in 2021
Short return visit (20+ min)239$35,669$79
Destruction of precancer skin growth, 1 growth201$20,141$59
Return visit (30+ min)86$12,769$114
Destruction of precancer skin growth, 2-14 growths173$11,544$7
Destruction of skin growth, 1-14 growths71$10,089$112
Biopsy of related skin growth, first growth70$8,000$103
New patient visit (30+ min)71$6,232$88
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm13$2,185$146

2020: 8 services

Original Medicare services billed in 2020
Return visit (30+ min)218$28,418$89
Destruction of precancer skin growth, 1 growth188$18,132$59
Short return visit (20+ min)114$11,887$64
Destruction of precancer skin growth, 2-14 growths162$9,081$6
Destruction of skin growth, 1-14 growths55$7,571$102
Biopsy of related skin growth, first growth48$5,352$97
New patient visit (30+ min)48$3,346$70
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm12$1,530$128

2019: 9 services

Original Medicare services billed in 2019
Return visit (30+ min)215$27,375$87
Destruction of precancer skin growth, 1 growth191$16,874$55
Short return visit (20+ min)135$12,985$60
Destruction of skin growth, 1-14 growths86$10,906$103
Destruction of precancer skin growth, 2-14 growths159$7,599$5
Biopsy of related skin growth, first growth62$6,665$91
New patient visit (30+ min)55$5,143$94
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm14$2,069$129
Biopsy of related skin growth, each additional growth12$856$53

2018: 9 services

Original Medicare services billed in 2018
Return visit (30+ min)191$24,880$89
Destruction of precancer skin growth, 1 growth179$15,594$55
Short return visit (20+ min)144$14,304$62
Destruction of skin growth, 1-14 growths85$9,671$103
Biopsy of single growth of skin and/or tissue61$6,695$94
Destruction of precancer skin growth, 2-14 growths146$5,541$5
New patient visit (30+ min)43$3,938$92
New patient visit (15+ min)25$1,340$54
Biopsy of each additional growth of skin and/or tissue11$477$30

2017: 9 services

Original Medicare services billed in 2017
Return visit (30+ min)195$24,897$85
Destruction of precancer skin growth, 1 growth190$15,713$54
Short return visit (20+ min)163$15,134$62
Destruction of skin growth, 1-14 growths75$9,989$105
Biopsy of single growth of skin and/or tissue67$7,220$91
Destruction of precancer skin growth, 2-14 growths154$5,803$5
New patient visit (30+ min)45$3,777$84
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm11$1,331$121
New patient visit (15+ min)18$958$53

2016: 9 services

Original Medicare services billed in 2016
Return visit (30+ min)183$23,309$83
Destruction of precancer skin growth, 1 growth208$18,345$53
Short return visit (20+ min)174$16,146$60
Biopsy of single growth of skin and/or tissue95$9,547$88
Destruction of skin growth, 1-14 growths69$9,233$103
Destruction of precancer skin growth, 2-14 growths176$6,949$5
New patient visit (30+ min)56$4,731$84
New patient visit (15+ min)22$1,237$56
Biopsy of each additional growth of skin and/or tissue12$448$30

2015: 10 services

Original Medicare services billed in 2015
Return visit (30+ min)155$19,066$85
Short return visit (20+ min)183$17,566$60
Destruction of precancer skin growth, 1 growth183$15,439$53
Biopsy of single growth of skin and/or tissue91$10,318$93
Destruction of skin growth, 1-14 growths77$10,156$106
Destruction of precancer skin growth, 2-14 growths154$6,937$5
New patient visit (30+ min)50$4,423$88
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm14$1,751$117
New patient visit (15+ min)23$1,272$55
Biopsy of each additional growth of skin and/or tissue15$506$30

2014: 9 services

Original Medicare services billed in 2014
Short return visit (20+ min)188$20,013$63
Return visit (30+ min)146$18,216$86
Destruction of precancer skin growth, 1 growth155$16,768$65
Destruction of skin growth, 1-14 growths84$11,822$105
Destruction of precancer skin growth, 2-14 growths136$11,649$10
Biopsy of single growth of skin and/or tissue81$8,081$91
New patient visit (30+ min)65$5,359$82
New patient visit (15+ min)14$839$60
Biopsy of each additional growth of skin and/or tissue15$481$30

2013: 8 services

Original Medicare services billed in 2013
Destruction of precancer skin growth, 1 growth149$19,749$71
Short return visit (20+ min)173$18,730$62
Return visit (30+ min)128$17,530$92
Destruction of skin growth, 1-14 growths64$9,843$111
Biopsy of single growth of skin and/or tissue66$7,082$96
Destruction of precancer skin growth, 2-14 growths131$6,964$6
New patient visit (30+ min)60$5,312$89
New patient visit (15+ min)16$1,062$66

Drugs they prescribed that Part D paid

$65,073

Pharmacies billed $65,073 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 288) in 2024. At or below the middle of the specialty; the typical dermatology clinician is at 0%.

269 generic and 19 brand-name prescriptions · $65,073 in drug cost · 11 antibiotic prescriptions.

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
Otezla12$57,992$4,833
Clobetasol Propionate23$1,399$61
Ketoconazole50$855$17
Valacyclovir22$595$27
Triamcinolone Acetonide51$406$8
See all 7 drugs
Every Part D drug this clinician prescribed
Otezla12$57,992$4,833
Clobetasol Propionate23$1,399$61
Ketoconazole50$855$17
Valacyclovir22$595$27
Triamcinolone Acetonide51$406$8
Fluocinonide12$341$28
Hydrocortisone36$166$5

Year by year

Part D prescribing by year
20242881360% (0)7%$65,073
20232161060% (0)8%$71,199
20222201170% (0)7%$56,461
20212171140% (0)8%$46,556
2020148720% (0)16%$47,379
2019180840% (0)9%$48,233
2018154860% (0)14%$44,219
2017195930% (0)11%$36,804
2016142790% (0)9%$8,887
2015157780% (0)17%$14,380
2014203940% (0)22%$17,285
2013236850% (0)16%$17,348

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
Otezla13$63,718$4,901
Ketoconazole50$1,074$21
Clobetasol Propionate11$477$43
Triamcinolone Acetonide32$282$9
Hydrocortisone28$149$5

2022: 5 drugs

Part D drugs prescribed in 2022
Otezla11$50,586$4,599
Ketoconazole47$912$19
Clobetasol Propionate14$334$24
Triamcinolone Acetonide49$300$6
Hydrocortisone29$168$6

2021: 3 drugs

Part D drugs prescribed in 2021
Ketoconazole48$1,210$25
Triamcinolone Acetonide35$338$10
Hydrocortisone41$191$5

2020: 4 drugs

Part D drugs prescribed in 2020
Otezla11$41,484$3,771
Ketoconazole23$823$36
Triamcinolone Acetonide21$178$8
Hydrocortisone25$119$5

2019: 6 drugs

Part D drugs prescribed in 2019
Otezla12$42,815$3,568
Ketoconazole22$725$33
Clobetasol Propionate13$706$54
Fluocinonide11$617$56
Triamcinolone Acetonide40$299$7
Hydrocortisone23$93$4

2018: 5 drugs

Part D drugs prescribed in 2018
Otezla12$38,647$3,221
Metronidazole12$1,311$109
Ketoconazole11$605$55
Triamcinolone Acetonide37$370$10
Hydrocortisone21$121$6

2017: 7 drugs

Part D drugs prescribed in 2017
Metronidazole13$2,037$157
Clobetasol Propionate15$1,306$87
Ketoconazole19$743$39
Triamcinolone Acetonide31$317$10
Mupirocin14$131$9
Hydrocortisone21$120$6
Cephalexin11$60$5

2016: 5 drugs

Part D drugs prescribed in 2016
Clobetasol Propionate11$1,896$172
Fluticasone Propionate16$472$29
Triamcinolone Acetonide14$201$14
Hydrocortisone14$144$10
Cephalexin11$99$9

2015: 5 drugs

Part D drugs prescribed in 2015
Clobetasol Propionate24$4,730$197
Econazole Nitrate12$2,549$212
Desonide21$2,128$101
Fluticasone Propionate17$512$30
Ketoconazole14$145$10

2014: 5 drugs

Part D drugs prescribed in 2014
Desonide26$5,094$196
Econazole Nitrate30$1,864$62
Clobetasol Propionate12$1,087$91
Fluocinonide19$979$52
Fluticasone Propionate17$652$38

2013: 6 drugs

Part D drugs prescribed in 2013
Desonide36$3,429$95
Fluticasone Propionate31$1,220$39
Econazole Nitrate37$1,118$30
Fluocinonide18$1,018$57
Clobetasol Propionate13$529$41
Valacyclovir11$236$21

Checkups this office reported

6 measures · 2023

Medicare asked this office to report how often certain checkups happened in 2023. This is not a grade for the doctor. A specialist’s patients may not need every screening.

Medicare’s overall office score
85.1 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Checkup rates this office reported to Medicare
Medications listed in the chartVisits where the current medication list was documented98%That's most of the people this applied to.2,506
Melanoma: Continuity of Care - Recall SystemAs Medicare defines this measure100%33
Patient-Centered Surgical Risk Assessment and CommunicationAs Medicare defines this measure98%40
Patients can see their records onlinePatients who were given electronic access to their health information98%That's most of the people this applied to.649
Prescriptions sent electronicallyPrescriptions sent to the pharmacy by computer instead of paper100%That's most of the people this applied to.364
Risky medications in older adultsOlder patients given a medication that is risky at their age0%That's few of the people this applied to. Better on this measure.480

What the office says it does

Boxes the office ticked on its Medicare worksheet for 2023. Nobody checks these.

  • Agreed to federal review of their records system
  • Did a security review of patient data
  • Exchanges records both ways with other health systems
  • Implementation of medication management practice improvements
  • Implementation of Use of Specialist Reports Back to Referring Clinician or Group to Close Referral Loop
  • ONC-ACB Surveillance Attestation
  • Exempt from electronic case reporting
  • Exempt from immunization registry reporting
  • Exempt from query of the prescription drug monitoring program (pdmp)

Professional record

NPI
1922192111
Licence
CA A61091California A61091: Current · expires 2028-01-31
Trained
Albany Medical College of Union University, 1995
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 207N00000X (207N00000X)
Mailing address
851 Fremont Ave, Suite 112, Los Altos, CA, 94024
NPI first listed
2006-10-03
NPI last updated
2008-05-27

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