Simon Tan, CP
Clinical Psychologist · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 22
- 5 carriers
- Office
- 1
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Looking this up.
Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.
Plans that list them
22 plans · 5 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Simon Tan’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
22 of 22 plans
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Anthem Medicare Advantage (HMO-POS) | Anthem Blue Cross | Listed | Oct 3, 2026 |
| Anthem Prime (HMO-POS) | Anthem Blue Cross Partnership Plan | Listed | Oct 3, 2026 |
| Kaiser Permanente Dual Complete North P2 (HMO D-SNP) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Dual Complete North P23 (HMO D-SNP) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Sr Adv Basic Santa Clara (HMO) | Kaiser Permanente | Listed | Sep 1, 2026 |
| Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO) | Kaiser Permanente | Listed | Sep 1, 2026 |
| SCAN Balance (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Classic (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN MyChoice (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Strive (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
Hospitals they work in
1 hospital
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend itOverall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care
Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.31 (4.24 to 6.37) · 8,661 cases | Worse | Jul 2022 – Jun 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 14.1 (12.7 to 15.7) · 2,191 cases | Worse | Jan 2024 – Dec 2024 |
| Postoperative respiratory failure rateComplications and deaths | 4.08 (1.95 to 6.21) · 5,296 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.317 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.446 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.241 | Better | Oct 2024 – Sep 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.7 (0.6 to 0.9) · 3,348 cases | Better | Jan 2024 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.06 (0.45 to 1.67) · 5,374 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.86 (0.72 to 1) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 166.09 (137.88 to 194.3) · 470 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.1 · 192 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.4 · 146 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.7 · 253 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 6.3 · 880 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 935 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.7 · 501 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 7,730 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.13 (0 to 0.27) · 20,799 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.14 to 0.43) · 23,182 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 0.94 (0.2 to 1.68) · 5,694 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.36 (1.54 to 3.19) · 7,846 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.2 (3.76 to 6.64) · 5,603 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.38 (0.23 to 2.53) · 2,211 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.52 (0.21 to 0.83) · 19,915 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.6 · 416 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.869 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.857 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.368 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 16.2 · 247 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 1,021 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 47.8 · 258 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -1.6 · 990 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 20.8 · 976 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.5 · 959 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.2 (4.4 to 6.2) · 2,191 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 425 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.6 · 158 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.6 · 183 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.7 (10.4 to 15.4) · 4,578 cases | No different | Jan 2022 – Dec 2024 |
What patients said (6,810 patients answered, 25% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 63% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 79% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 79% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 53% |
| "YES", patients would definitely recommend the hospital | 83% |
| Staff "always" explained possible side effects | 50% |
| Yes, staff "did" give patients information about possible symptoms | 90% |
Original Medicare doctor bills
$83,394
Medicare paid this office $83,394 for 163 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 158 | $29,092 | $37 |
| Evaluation of neuropsychological test, each additional hour | 157 | $20,393 | $65 |
| Evaluation of neuropsychological test, first hour | 159 | $14,763 | $93 |
| Exam of neurobehavioral status, first hour | 160 | $11,404 | $70 |
| Administration of psychological or neuropsychological test by technician, first 30 minutes | 158 | $6,055 | $38 |
Who their Medicare patients are
163 Original Medicare patients in 2024. Average age 74 · Under 65 9% · 85 and older 9% · Women 49% · Also on Medicaid 20% · Health risk score 1.31. Above the middle of the specialty; the typical psychologist, clinical clinician is at 1.25.
Conditions among them: High blood pressure 68% · Depression 32% · Coronary heart disease 28% · Dementia 28% · Diabetes 26% · Chronic kidney disease 21% · Stroke 21% · Cancer 18% · Atrial fibrillation 14% · Heart failure 13% · COPD 10%.
The office billed $492,892, Medicare allowed $107,448 and paid $83,394; for 1,602 services of 9 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
| 2024 | 163 | 1,602 | 74 | 1.31 | $492,892 | $83,394 |
| 2023 | 160 | 1,628 | 75 | 1.29 | $404,201 | $86,342 |
| 2022 | 158 | 859 | 75 | 1.49 | $246,059 | $54,465 |
| 2021 | 174 | 673 | 74 | 1.34 | $232,127 | $51,318 |
| 2020 | 114 | 436 | 73 | 1.32 | $157,807 | $34,266 |
| 2019 | 155 | 646 | 74 | 1.40 | $206,914 | $48,557 |
| 2018 | 152 | 653 | 73 | 1.40 | $148,429 | $43,376 |
| 2017 | 155 | 683 | 74 | 1.29 | $155,656 | $45,374 |
| 2016 | 147 | 665 | 72 | 1.29 | $203,328 | $48,053 |
| 2015 | 90 | 319 | 74 | 1.37 | $114,723 | $23,051 |
| 2014 | 26 | 138 | 71 | 1.06 | $45,091 | $8,864 |
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: 5 services
| Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 155 | $31,888 | $39 |
| Evaluation of neuropsychological test, each additional hour | 157 | $20,773 | $66 |
| Evaluation of neuropsychological test, first hour | 157 | $15,057 | $95 |
| Exam of neurobehavioral status, first hour | 158 | $11,666 | $73 |
| Administration of psychological or neuropsychological test by technician, first 30 minutes | 155 | $6,034 | $38 |
2022: 5 services
| Evaluation of neuropsychological test, each additional hour | 155 | $19,670 | $63 |
| Evaluation of neuropsychological test, first hour | 155 | $14,095 | $91 |
| Exam of neurobehavioral status, first hour | 154 | $11,434 | $74 |
| Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 34 | $7,082 | $38 |
| Administration of psychological or neuropsychological test by technician, first 30 minutes | 34 | $1,320 | $38 |
2021: 3 services
| Evaluation of neuropsychological test, each additional hour | 170 | $23,349 | $72 |
| Evaluation of neuropsychological test, first hour | 170 | $15,497 | $91 |
| Exam of neurobehavioral status, first hour | 162 | $11,670 | $72 |
2020: 3 services
| Evaluation of neuropsychological test, each additional hour | 110 | $15,346 | $74 |
| Evaluation of neuropsychological test, first hour | 113 | $10,818 | $93 |
| Exam of neurobehavioral status, first hour | 104 | $7,730 | $73 |
2019: 3 services
| Evaluation of neuropsychological test, each additional hour | 149 | $21,016 | $72 |
| Evaluation of neuropsychological test, first hour | 149 | $13,939 | $91 |
| Exam of neurobehavioral status, first hour | 153 | $11,379 | $71 |
2018: 4 services
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 118 | $26,473 | $67 |
| Exam of neurobehavioral status, first hour | 119 | $7,468 | $63 |
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 33 | $6,801 | $69 |
| Exam of neurobehavioral status, first hour | 33 | $2,501 | $76 |
2017: 2 services
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 152 | $34,628 | $68 |
| Exam of neurobehavioral status, first hour | 148 | $9,943 | $67 |
2016: 4 services
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 80 | $22,953 | $74 |
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 69 | $14,001 | $68 |
| Exam of neurobehavioral status, first hour | 79 | $6,090 | $77 |
| Exam of neurobehavioral status, first hour | 64 | $4,888 | $76 |
2015: 2 services
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 81 | $10,443 | $68 |
| Exam of neurobehavioral status, first hour | 82 | $6,289 | $77 |
2014: 2 services
| Neuropsychological testing, interpretation, and report by psychologist or physician per hour | 22 | $3,853 | $69 |
| Exam of neurobehavioral status, first hour | 21 | $1,627 | $77 |
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
- 1902932536
- Licence
- CA PSY20181
- Group
- Stanford Health Care
- Video visits
- Lists video visits
- Gender
- Male
More record details
- Sole proprietor
- No
- Medicaid ID
- CA PSY201810
- Taxonomy
- Federal specialty code 103G00000X (103G00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2007-02-26
- NPI last updated
- 2023-11-07
- NPI record certified
- 2023-11-07
This is when the NPI record was last certified, not a medical board exam.