Luigi Di Stefano, MD
Emergency Medicine · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Stefano’s office at (650) 723-9215 to ask if they take your plan before you enroll.
California Medical Board record
Licence A101791 · Current
Licensed to practise in California · since 2007 · expires 2027-06-30 · Washington University School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Original Medicare doctor bills
$40,648
Medicare paid this office $40,648 for 275 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with high level of medical decision making | 162 | $21,802 | $132 |
| Critical care, first 30-74 minutes | 91 | $14,862 | $162 |
| Emergency department visit with moderate level of medical decision making | 21 | $2,008 | $96 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 133 | $905 | $6 |
Who their Medicare patients are
275 Original Medicare patients in 2024. Average age 74 · Under 65 13% · 85 and older 21% · Women 54% · Also on Medicaid 64% · Health risk score 2.84. Sicker patients than 9 in 10 peers; the typical emergency medicine clinician is at 2.01.
Conditions among them: High blood pressure 75% · Diabetes 60% · Chronic kidney disease 46% · Coronary heart disease 45% · Heart failure 39% · Atrial fibrillation 32% · Depression 31% · Stroke 24% · Dementia 23% · COPD 20% · Cancer 16%.
The office billed $438,358, Medicare allowed $54,085 and paid $40,648; for 435 services of 11 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 | 275 | 435 | 74 | 2.84 | $438,358 | $40,648 |
| 2023 | 249 | 463 | 71 | 3.42 | $438,685 | $45,507 |
| 2022 | 269 | 498 | 73 | 2.92 | $423,602 | $49,507 |
| 2021 | 213 | 379 | 71 | 3.25 | $231,499 | $39,138 |
| 2020 | 250 | 464 | 69 | 3.16 | $266,335 | $41,114 |
| 2019 | 310 | 584 | 68 | 3.42 | $336,286 | $47,573 |
| 2018 | 346 | 624 | 71 | 3.44 | $348,358 | $54,719 |
| 2017 | 409 | 732 | 69 | 3.31 | $381,449 | $63,213 |
| 2016 | 213 | 326 | 66 | 2.62 | $294,737 | $30,732 |
| 2015 | 228 | 395 | 64 | 2.86 | $224,470 | $33,678 |
| 2014 | 189 | 347 | 63 | 2.95 | $160,035 | $29,524 |
| 2013 | 248 | 414 | 66 | 2.63 | $187,094 | $34,853 |
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
| Critical care, first 30-74 minutes | 101 | $20,417 | $193 |
| Emergency department visit with high level of medical decision making | 136 | $19,278 | $137 |
| Emergency department visit with moderate level of medical decision making | 13 | $1,624 | $96 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 12 | $1,548 | $129 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 163 | $1,176 | $7 |
2022: 4 services
| Emergency department visit with high level of medical decision making | 156 | $25,447 | $156 |
| Critical care, first 30-74 minutes | 85 | $18,348 | $213 |
| Emergency department visit with moderate level of medical decision making | 25 | $2,495 | $100 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 199 | $1,397 | $7 |
2021: 4 services
| Emergency department visit with high level of medical decision making | 137 | $22,842 | $161 |
| Critical care, first 30-74 minutes | 51 | $11,204 | $215 |
| Emergency department visit with moderate level of medical decision making | 17 | $1,740 | $102 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 145 | $986 | $7 |
2020: 4 services
| Emergency department visit with high level of medical decision making | 178 | $26,965 | $145 |
| Critical care, first 30-74 minutes | 46 | $9,731 | $207 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 184 | $1,350 | $7 |
| Emergency department visit with moderate level of medical decision making | 13 | $951 | $73 |
2019: 4 services
| Emergency department visit with high level of medical decision making | 230 | $33,198 | $134 |
| Critical care, first 30-74 minutes | 43 | $7,537 | $175 |
| Emergency department visit with moderate level of medical decision making | 27 | $2,546 | $91 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 207 | $1,645 | $7 |
2018: 4 services
| Emergency department visit with high level of medical decision making | 260 | $38,861 | $141 |
| Critical care, first 30-74 minutes | 46 | $8,456 | $184 |
| Emergency department visit with moderate level of medical decision making | 21 | $2,214 | $101 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 230 | $1,840 | $7 |
2017: 4 services
| Emergency department visit with high level of medical decision making | 303 | $44,059 | $137 |
| Critical care, first 30-74 minutes | 55 | $10,119 | $181 |
| Emergency department visit with moderate level of medical decision making | 38 | $3,636 | $91 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 256 | $1,994 | $7 |
2016: 5 services
| Emergency department visit with high level of medical decision making | 127 | $18,451 | $139 |
| Critical care, first 30-74 minutes | 34 | $6,236 | $183 |
| Emergency department visit with moderate level of medical decision making | 33 | $3,184 | $94 |
| Emergency department visit with low level of medical decision making | 21 | $1,025 | $49 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 77 | $548 | $7 |
2015: 6 services
| Emergency department visit with high level of medical decision making | 146 | $20,785 | $139 |
| Critical care, first 30-74 minutes | 36 | $6,725 | $187 |
| Emergency department visit with moderate level of medical decision making | 32 | $2,958 | $92 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 117 | $872 | $7 |
| Emergency department visit with low level of medical decision making | 15 | $675 | $45 |
| X-ray of chest, 1 view, front | 14 | $110 | $8 |
2014: 5 services
| Emergency department visit with high level of medical decision making | 127 | $18,530 | $141 |
| Critical care, first 30-74 minutes | 32 | $5,943 | $186 |
| Emergency department visit with moderate level of medical decision making | 25 | $2,418 | $97 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 91 | $685 | $7 |
| X-ray of chest, 1 view, front | 30 | $241 | $8 |
2013: 5 services
| Emergency department visit with high level of medical decision making | 166 | $22,420 | $130 |
| Critical care, first 30-74 minutes | 41 | $7,246 | $173 |
| Emergency department visit with moderate level of medical decision making | 30 | $2,580 | $83 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 116 | $791 | $7 |
| Emergency department visit with low level of medical decision making | 14 | $588 | $42 |
Medicaid work
$177,420 in 2024
Medicaid paid $177,420 for 3,738 billed services this clinician did in 2024, up to 206 people in a month for one service.
Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 949 | $69,564 |
| EMERGENCY DEPT VISIT MOD MDM | 1,447 | $63,353 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 202 | $21,162 |
| EMERGENCY DEPT VISIT LOW MDM | 440 | $13,403 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 518 | $4,734 |
| Service | 127 | $4,691 |
| COMPREHENSIVE METABOLIC PANEL | 27 | $285 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 28 | $227 |
| 2024 | 3,738 | 8 | 206 | $177,420 |
| 2023 | 6,993 | 18 | 233 | $328,701 |
| 2022 | 4,831 | 11 | 147 | $220,525 |
| 2021 | 3,996 | 14 | 87 | $168,930 |
| 2020 | 3,179 | 12 | 132 | $148,066 |
| 2019 | 3,921 | 14 | 137 | $181,596 |
| 2018 | 2,305 | 10 | 76 | $78,134 |
See the largest Medicaid services in earlier years
2023
| EMERGENCY DEPT VISIT MOD MDM | 2,147 | $119,232 |
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 1,290 | $111,610 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 353 | $44,297 |
| Service | 503 | $18,764 |
| EMERGENCY DEPT VISIT LOW MDM | 374 | $14,668 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 792 | $8,831 |
| COMPREHENSIVE METABOLIC PANEL | 266 | $3,159 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 290 | $2,516 |
| URINE PREGNANCY TEST | 179 | $2,008 |
| Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report | 66 | $1,242 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 217 | $764 |
| Service | 361 | $600 |
2022
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 755 | $66,055 |
| EMERGENCY DEPT VISIT MOD MDM | 935 | $50,187 |
| EMERGENCY DEPT VISIT LOW MDM | 1,245 | $46,443 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 255 | $33,826 |
| Service | 313 | $11,792 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 710 | $8,526 |
| COMPREHENSIVE METABOLIC PANEL | 136 | $1,579 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 143 | $1,225 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 90 | $310 |
| Service | 224 | $292 |
| URINE PREGNANCY TEST | 25 | $289 |
2021
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 676 | $55,129 |
| EMERGENCY DEPT VISIT MOD MDM | 722 | $38,220 |
| EMERGENCY DEPT VISIT LOW MDM | 626 | $22,043 |
| Unlisted special service, procedure or report | 85 | $21,438 |
| Service | 370 | $14,313 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 511 | $6,643 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 46 | $5,743 |
| COMPREHENSIVE METABOLIC PANEL | 191 | $1,601 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 212 | $1,345 |
| Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report | 57 | $1,200 |
| URINE PREGNANCY TEST | 59 | $559 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 124 | $315 |
2020
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 893 | $75,803 |
| EMERGENCY DEPT VISIT MOD MDM | 641 | $33,029 |
| EMERGENCY DEPT VISIT LOW MDM | 442 | $15,324 |
| Service | 267 | $10,216 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 540 | $7,039 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 37 | $4,477 |
| COMPREHENSIVE METABOLIC PANEL | 79 | $896 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 78 | $641 |
| URINE PREGNANCY TEST | 26 | $278 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 54 | $185 |
| Service | 108 | $96 |
| Infusion, normal saline solution , 1000 cc | 14 | $83 |
2019
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 886 | $68,077 |
| EMERGENCY DEPT VISIT MOD MDM | 1,027 | $51,721 |
| Unlisted special service, procedure or report | 71 | $19,720 |
| EMERGENCY DEPT VISIT LOW MDM | 631 | $19,623 |
| Service | 329 | $12,502 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 511 | $6,355 |
| Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes | 12 | $1,357 |
| Service | 13 | $818 |
| URINE PREGNANCY TEST | 45 | $563 |
| COMPREHENSIVE METABOLIC PANEL | 42 | $324 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 45 | $273 |
| Service | 241 | $170 |
2018
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 504 | $34,569 |
| EMERGENCY DEPT VISIT MOD MDM | 557 | $20,075 |
| Service | 331 | $12,157 |
| EMERGENCY DEPT VISIT LOW MDM | 306 | $7,429 |
| Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only | 289 | $2,558 |
| COMPREHENSIVE METABOLIC PANEL | 43 | $485 |
| Blood count; complete (CBC), automated (Hgb, Hct, RBC, WBC and platelet count) and automated differential WBC count | 56 | $468 |
| Urinalysis, by dip stick or tablet reagent for bilirubin, glucose, hemoglobin, ketones, leukocytes, nitrite, pH, protein, specific gravity, urobilinogen, any number of these constituents; automated, with microscopy | 41 | $136 |
| Service | 153 | $131 |
| URINE PREGNANCY TEST | 25 | $125 |
Drugs they prescribed that Part D paid
$1,497
Pharmacies billed $1,497 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 15% of their Part D prescriptions (22 of 151) in 2024. Above the middle of the specialty; the typical emergency medicine clinician is at 12%.
142 generic and fewer than 11 brand-name prescriptions · $1,497 in drug cost · 72 antibiotic prescriptions to 70 people.
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.
| Cefdinir | 17 | $182 | $11 |
| Doxycycline Hyclate | 16 | $94 | $6 |
| Cephalexin | 14 | $55 | $4 |
| Hydrocodone-Acetaminophen | 16 | $51 | $3 |
Year by year
| 2024 | 151 | 121 | 15% (22) | None | $1,497 |
| 2023 | 203 | 132 | 16% (33) | None | $3,542 |
| 2022 | 219 | 150 | 16% (35) | None | $3,412 |
| 2021 | 148 | 101 | 18% (27) | 8% | $1,990 |
| 2020 | 106 | 79 | 18% (19) | None | $1,421 |
| 2019 | 112 | 84 | 30% (33) | 10% | $1,624 |
| 2018 | 100 | 77 | 16% (16) | None | $2,467 |
| 2017 | 145 | 107 | 23% (34) | None | $1,721 |
| 2016 | 75 | 54 | 36% (27) | None | $1,407 |
| 2015 | 96 | 60 | 39% (37) | None | $1,304 |
| 2014 | 103 | 66 | 31% (32) | None | $1,765 |
| 2013 | 131 | 86 | 34% (44) | None | $1,806 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 7 drugs
| Cefdinir | 16 | $207 | $13 |
| Nitrofurantoin Mono-Macro | 14 | $190 | $14 |
| Pantoprazole | 11 | $110 | $10 |
| Doxycycline Hyclate | 11 | $106 | $10 |
| Cephalexin | 13 | $73 | $6 |
| Hydrocodone-Acetaminophen | 22 | $70 | $3 |
| Meclizine | 14 | $58 | $4 |
2022: 6 drugs
| Nitrofurantoin Mono-Macro | 18 | $252 | $14 |
| Cephalexin | 20 | $135 | $7 |
| Azithromycin | 11 | $61 | $6 |
| Tramadol | 27 | $39 | $1 |
| Ibuprofen | 11 | $37 | $3 |
| Prednisone | 12 | $19 | $2 |
2021: 2 drugs
| Cephalexin | 24 | $128 | $5 |
| Tramadol | 22 | $30 | $1 |
2020: 2 drugs
| Cephalexin | 22 | $121 | $5 |
| Tramadol | 17 | $20 | $1 |
2019: 3 drugs
| Nitrofurantoin Mono-Macro | 15 | $229 | $15 |
| Cephalexin | 15 | $104 | $7 |
| Tramadol | 28 | $57 | $2 |
2018: 1 drug
| Cephalexin | 12 | $52 | $4 |
2017: 2 drugs
| Cephalexin | 27 | $155 | $6 |
| Hydrocodone-Acetaminophen | 13 | $42 | $3 |
2016: 1 drug
| Hydrocodone-Acetaminophen | 16 | $69 | $4 |
2015: 1 drug
| Hydrocodone-Acetaminophen | 36 | $166 | $5 |
2014: 1 drug
| Hydrocodone-Acetaminophen | 32 | $173 | $5 |
2013: 1 drug
| Hydrocodone-Acetaminophen | 41 | $230 | $6 |
Professional record
- NPI
- 1942332515
- Licence
- CA A101791California A101791: Current · expires 2027-06-30
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207P00000X (207P00000X); Student in a training program (390200000X)
- Mailing address
- 701 Welch Rd, Bldg C, Palo Alto, CA, 94304
- NPI first listed
- 2007-03-09
- NPI last updated
- 2009-09-22
This is when the NPI record was last certified, not a medical board exam.