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Michael Greicius

Neurology · Stanford

NPI 1861443509

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
17
3 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

17 plans · 3 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Michael Greicius’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

17 of 17 plans

Plans whose provider directory lists this clinician
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 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
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A73822 · Current

Licensed to practise in California · since 2001 · expires 2029-01-31 · Columbia University College of Physicians and Surgeons.

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

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 it
    Overall 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.

Every scored measure at Stanford Health Care
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5.31 (4.24 to 6.37) · 8,661 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits14.1 (12.7 to 15.7) · 2,191 casesWorseJan 2024 – Dec 2024
Postoperative respiratory failure rateComplications and deaths4.08 (1.95 to 6.21) · 5,296 casesBetterJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.317BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.446BetterOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.241BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 3,348 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.06 (0.45 to 1.67) · 5,374 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.86 (0.72 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.09 (137.88 to 194.3) · 470 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.1 · 192 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.4 · 146 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.7 · 253 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.3 · 880 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 935 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.7 · 501 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.1 · 7,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.27) · 20,799 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.14 to 0.43) · 23,182 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.94 (0.2 to 1.68) · 5,694 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.36 (1.54 to 3.19) · 7,846 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.2 (3.76 to 6.64) · 5,603 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.38 (0.23 to 2.53) · 2,211 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.21 to 0.83) · 19,915 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 416 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.869No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.857No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.368No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16.2 · 247 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.5 · 1,021 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits47.8 · 258 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-1.6 · 990 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits20.8 · 976 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.5 · 959 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (4.4 to 6.2) · 2,191 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 425 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits9.6 · 158 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.6 · 183 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.7 (10.4 to 15.4) · 4,578 casesNo differentJan 2022 – Dec 2024

What patients said (6,810 patients answered, 25% of those asked)

Patient survey stars by topic at Stanford Health Care
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Stanford Health Care
Room was "always" clean75%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained63%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)79%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital83%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$7,433

Medicare paid this office $7,433 for 63 people. Most of that is long return visits and Botox.

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

Largest Original Medicare bills
Long return visit (40+ min)40$4,899$114
Return visit (30+ min)15$1,131$75

Who their Medicare patients are

63 Original Medicare patients in 2024. Average age 78 · Women 46% · Health risk score 1.17. At or below the middle of the specialty; the typical neurology clinician is at 1.61.

Conditions among them: Dementia 75% · High blood pressure 59% · Depression 25% · Coronary heart disease 22% · Cancer 17%.

The office billed $17,401, Medicare allowed $10,791 and paid $7,433; for 71 services of 5 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
20246371781.17$17,401$7,433
20238597781.21$16,606$8,973
2022108124771.22$22,478$10,146
2021133148791.19$29,770$13,819
2020120143781.30$37,547$8,802
2019126147781.23$13,961$9,857
2018135160771.13$18,746$11,933
2017119134771.16$21,557$9,035
2016156188781.21$37,636$12,443
2015181229771.08$52,375$16,236
2014161240771.35$57,506$17,223
2013176230771.08$55,980$15,147

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: 3 services

Original Medicare services billed in 2023
Return visit (30+ min)41$3,568$79
Long return visit (40+ min)19$2,069$109
New patient visit (45+ min)16$1,862$116

2022: 4 services

Original Medicare services billed in 2022
Return visit (30+ min)47$3,302$66
Long return visit (40+ min)22$2,358$98
New patient visit (45+ min)18$1,925$107
Short return visit (20+ min)17$839$49

2021: 5 services

Original Medicare services billed in 2021
Return visit (30+ min)49$4,128$78
Long return visit (40+ min)30$3,931$119
New patient visit (60+ min)15$2,276$152
New patient visit (45+ min)17$1,902$112
Short return visit (20+ min)28$1,412$50

2020: 3 services

Original Medicare services billed in 2020
New patient visit (45+ min)25$2,670$107
Return visit (30+ min)33$2,320$59
Short return visit (20+ min)43$1,725$39

2019: 4 services

Original Medicare services billed in 2019
Short return visit (20+ min)64$3,118$43
New patient visit (45+ min)28$2,887$103
Return visit (30+ min)23$1,582$66
Long return visit (40+ min)12$1,212$101

2018: 6 services

Original Medicare services billed in 2018
New patient visit (60+ min)26$3,506$135
New patient visit (45+ min)18$1,541$86
Return visit (30+ min)25$1,472$57
Long return visit (40+ min)14$1,397$100
Short return visit (20+ min)35$1,216$33
Short return visit (20+ min)15$691$46

2017: 4 services

Original Medicare services billed in 2017
New patient visit (60+ min)21$2,937$140
Short return visit (20+ min)66$2,690$37
New patient visit (45+ min)15$1,660$111
Return visit (30+ min)15$969$65

2016: 4 services

Original Medicare services billed in 2016
Short return visit (20+ min)85$3,796$38
New patient visit (60+ min)25$3,408$136
New patient visit (45+ min)26$2,615$101
Return visit (30+ min)22$1,441$66

2015: 4 services

Original Medicare services billed in 2015
New patient visit (60+ min)31$4,593$148
Short return visit (20+ min)83$3,968$39
New patient visit (45+ min)35$3,705$106
Return visit (30+ min)46$3,076$63

2014: 7 services

Original Medicare services billed in 2014
Short return visit (20+ min)68$2,993$36
Return visit (30+ min)43$2,819$66
Initial hospital care with moderate level of medical decision making at least 75 minutes13$2,338$180
New patient visit (60+ min)17$2,336$137
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes15$1,985$64
New patient visit (45+ min)13$1,488$114
Long return visit (40+ min)14$1,283$92

2013: 3 services

Original Medicare services billed in 2013
Short return visit (20+ min)109$4,870$36
New patient visit (60+ min)33$4,500$136
Long return visit (40+ min)19$1,788$94

Drugs they prescribed that Part D paid

$11,139

Pharmacies billed $11,139 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 227) in 2024. At or below the middle of the specialty; the typical neurology clinician is at 0%.

227 generic and 0 brand-name prescriptions · $11,139 in drug cost · 38 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
Rivastigmine20$5,250$262
Quetiapine38$2,986$79
Donepezil70$1,325$19
Carbidopa-Levodopa12$412$34
Trazodone31$343$11
See all 8 drugs
Every Part D drug this clinician prescribed
Rivastigmine20$5,250$262
Quetiapine38$2,986$79
Donepezil70$1,325$19
Carbidopa-Levodopa12$412$34
Trazodone31$343$11
Sertraline25$289$12
Phenytoin12$179$15
Levetiracetam13$108$8

Year by year

Part D prescribing by year
2024227460% (0)0%$11,139
2023203460% (0)None$9,818
2022363650% (0)None$8,961
2021427860% (0)None$13,118
2020325680% (0)None$14,371
2019306610% (0)None$12,037
2018319540% (0)4%$15,244
2017370660% (0)7%$27,548
2016409580% (0)7%$25,791
2015395620% (0)8%$20,001
2014381560% (0)7%$11,487
2013401550% (0)12%$16,928

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

See the drugs prescribed each year

2023: 6 drugs

Part D drugs prescribed in 2023
Rivastigmine14$5,068$362
Donepezil86$1,408$16
Quetiapine20$1,025$51
Sertraline32$621$19
Trazodone26$605$23
Phenytoin11$434$39

2022: 4 drugs

Part D drugs prescribed in 2022
Donepezil175$3,153$18
Quetiapine41$2,860$70
Trazodone45$694$15
Sertraline57$655$11

2021: 6 drugs

Part D drugs prescribed in 2021
Rivastigmine12$4,441$370
Donepezil198$3,050$15
Quetiapine71$2,074$29
Trazodone51$479$9
Sertraline45$404$9
Mirtazapine11$322$29

2020: 6 drugs

Part D drugs prescribed in 2020
Donepezil182$2,191$12
Quetiapine19$551$29
Levetiracetam16$407$25
Sertraline28$245$9
Trazodone33$200$6
Venlafaxine Hcl Er13$79$6

2019: 6 drugs

Part D drugs prescribed in 2019
Rivastigmine15$6,043$403
Donepezil170$2,429$14
Carbidopa-Levodopa20$1,020$51
Quetiapine11$394$36
Sertraline17$242$14
Trazodone19$133$7

2018: 6 drugs

Part D drugs prescribed in 2018
Rivastigmine11$3,560$324
Donepezil146$2,185$15
Carbidopa-Levodopa15$1,008$67
Quetiapine61$859$14
Sertraline20$273$14
Trazodone15$206$14

2017: 8 drugs

Part D drugs prescribed in 2017
Donepezil170$2,439$14
Divalproex Sodium Er18$2,054$114
Carbidopa-Levodopa19$652$34
Quetiapine24$421$18
Sertraline22$326$15
Trazodone35$268$8
Fluoxetine17$186$11
Lorazepam14$173$12

2016: 10 drugs

Part D drugs prescribed in 2016
Rivastigmine13$8,712$670
Exelon13$7,302$562
Donepezil187$2,130$11
Quetiapine32$1,764$55
Divalproex Sodium Er20$1,294$65
Carbidopa-Levodopa22$513$23
Trazodone38$337$9
Levetiracetam18$245$14
Sertraline27$243$9
Lorazepam16$240$15

2015: 8 drugs

Part D drugs prescribed in 2015
Exelon26$13,092$504
Donepezil183$1,705$9
Quetiapine42$549$13
Sertraline33$341$10
Trazodone48$321$7
Lorazepam16$258$16
Levetiracetam14$224$16
Carbidopa-Levodopa14$220$16

2014: 8 drugs

Part D drugs prescribed in 2014
Exelon12$5,152$429
Donepezil176$2,064$12
Quetiapine39$1,236$32
Venlafaxine Hcl Er43$1,117$26
Levetiracetam21$324$15
Trazodone41$228$6
Sertraline24$153$6
Lorazepam12$96$8

2013: 8 drugs

Part D drugs prescribed in 2013
Exelon14$6,311$451
Donepezil188$3,252$17
Quetiapine50$2,010$40
Levetiracetam35$789$23
Venlafaxine Hcl Er25$288$12
Atorvastatin13$209$16
Sertraline28$188$7
Trazodone24$111$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
1861443509
Licence
CA A73822California A73822: Current · expires 2029-01-31
Trained
Columbia University College of Physicians and Surgeons, 1996
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Neurology (2084N0400X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2006-05-15
NPI last updated
2023-11-10
NPI record certified
2023-11-10

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