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Kelsey Elizabeth Hirotsu, MD

Dermatology · Stanford

NPI 1780115741

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
9
1 carrier
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

9 plans · 1 carrier

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

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

California Medical Board record

Licence A156863 · Current

Licensed to practise in California · since 2018 · expires 2028-07-31 · Stanford University School of Medicine.

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

$376,945

Medicare paid this office $376,945 for 498 people.

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

Largest Original Medicare bills
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks278$85,999$224
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks170$60,200$168
Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less44$36,167$786
Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less41$25,750$613
Short return visit (20+ min)175$16,034$58
See all 32 services
Every Original Medicare service billed
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks278$85,999$224
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks170$60,200$168
Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less44$36,167$786
Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less41$25,750$613
Short return visit (20+ min)175$16,034$58
Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks49$13,764$241
Repair of wound by transferring skin, 30.1-60.0 sq cm17$13,421$789
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.1-30.0 sq cm17$11,615$683
Full thickness skin graft to forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 20.0 sq cm or less14$10,948$684
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm65$10,304$147
Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks31$8,489$157
Return visit (30+ min)70$7,520$95
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.0 sq cm or less13$7,348$565
Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.1-30.0 sq cm11$6,740$613
New patient visit (45+ min)49$5,457$111
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm55$5,369$93
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm37$3,279$75
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm25$3,249$125
Destruction of precancer skin growth, 1 growth43$2,586$43
Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm26$2,487$89
Biopsy of related skin growth, first growth49$2,218$33
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.5 cm or less20$1,883$90
Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm13$1,661$119
New patient visit (30+ min)25$1,624$65
Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm16$1,348$79
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm14$1,346$90
Biopsy of related skin growth, each additional growth20$1,097$21
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 5.1-7.5 cm11$1,003$91
Application of chemical to stop tissue regrowth in wound16$992$35
Special stained specimen slides to examine tissue, initial procedure19$958$31
Injection into skin growth, 1-7 growths21$809$25
Destruction of precancer skin growth, 2-14 growths23$575$4

Procedures Medicare counted

Procedure volume Medicare published
Melanoma (skin cancer) excision117More than 94% of doctors who do this
Removal of nail tissue1-10None
Removal of skin cancer574More than 66% of doctors who do this
Removal of skin lesions137More than 77% of doctors who do this
Removal or shaving of skin growth1-10None
Skin biopsy68More than 72% of doctors who do this

Who their Medicare patients are

498 Original Medicare patients in 2024. Average age 76 · Under 65 4% · 85 and older 17% · Women 48% · Also on Medicaid 16% · Health risk score 1.41. Sicker patients than 9 in 10 peers; the typical dermatology clinician is at 1.01.

Conditions among them: High blood pressure 66% · Coronary heart disease 26% · Chronic kidney disease 26% · Atrial fibrillation 23% · Diabetes 20% · Cancer 20% · Heart failure 15% · Depression 12% · COPD 11% · Stroke 9% · Dementia 7%.

The office billed $3,027,568, Medicare allowed $484,760 and paid $376,945; for 2,359 services of 91 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
20244982,359761.41$3,027,568$376,945
20233511,264761.42$1,589,166$220,282
2022262649761.34$722,724$114,452
202192122761.52$60,185$15,322

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: 28 services

Original Medicare services billed in 2023
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks179$51,100$223
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks95$27,069$170
Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less23$18,120$788
Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less19$12,124$577
Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks34$9,667$230
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.1-30.0 sq cm13$8,875$683
Repair of wound by transferring skin, 30.1-60.0 sq cm11$8,537$776
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm52$8,240$147
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.0 sq cm or less14$7,581$505
Short return visit (20+ min)62$4,321$59
Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks18$4,256$158
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm39$3,806$95
Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm17$2,834$167
New patient visit (45+ min)24$2,748$114
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm32$2,558$80
Return visit (30+ min)24$2,289$88
Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm19$2,235$118
New patient visit (30+ min)30$2,110$70
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm16$1,804$100
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm11$1,401$127
Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm16$1,359$85
Destruction of precancer skin growth, 1 growth26$1,320$41
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.5 cm or less12$1,238$103
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 5.1-7.5 cm12$1,194$100
Biopsy of related skin growth, first growth26$1,123$42
Destruction of skin growth, 1-14 growths12$1,090$84
Destruction of precancer skin growth, 2-14 growths15$449$5
Short return visit15$343$23

2022: 15 services

Original Medicare services billed in 2022
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks75$19,829$220
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks40$9,587$168
Return visit (30+ min)74$6,086$79
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm32$5,117$155
Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm17$4,330$255
Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks15$4,259$224
New patient visit (45+ min)18$2,033$113
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm20$1,896$95
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm14$1,810$129
Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm14$1,537$110
Short return visit (20+ min)20$1,389$69
Biopsy of related skin growth, first growth21$1,279$61
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm13$1,273$98
New patient visit (30+ min)14$1,225$88
Short return visit12$587$39

2021: 2 services

Original Medicare services billed in 2021
Return visit (30+ min)59$6,845$112
New patient visit (45+ min)13$1,876$144

Medicaid work

$10,762 in 2024

Medicaid paid $10,762 for 50 billed services this clinician did in 2024, up to 14 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.

Largest Medicaid services in 2024
Mohs micrographic technique, including removal of all gross tumor, surgical excision of tissue specimens, mapping, color coding of specimens, microscopic examination of specimens by the surgeon, and histopathologic preparation including routine stain(s) (eg, hematoxylin and eosin, toluidine blue), head, neck, hands, feet, genitalia, or any location with surgery directly involving muscle, cartilage, bone, tendon, major nerves, or vessels; each additional stage after the first stage, up to 5 tissue blocks (List separately in addition to code for primary procedure)12$6,430
Mohs micrographic technique, including removal of all gross tumor, surgical excision of tissue specimens, mapping, color coding of specimens, microscopic examination of specimens by the surgeon, and histopathologic preparation including routine stain(s) (eg, hematoxylin and eosin, toluidine blue), head, neck, hands, feet, genitalia, or any location with surgery directly involving muscle, cartilage, bone, tendon, major nerves, or vessels; first stage, up to 5 tissue blocks38$4,331
Medicaid work by year
202450214$10,762

Drugs they prescribed that Part D paid

$42,498

Pharmacies billed $42,498 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 11% of their Part D prescriptions (38 of 350) in 2024. A higher opioid share than 9 in 10 peers; the typical dermatology clinician is at 0%.

342 generic and fewer than 11 brand-name prescriptions · $42,498 in drug cost · 204 antibiotic prescriptions to 168 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.

Largest Part D drug costs
Cephalexin169$866$5
Fluorouracil13$736$57
Triamcinolone Acetonide18$224$12
Doxycycline Monohydrate22$215$10
Acetaminophen-Codeine31$95$3
See all 6 drugs
Every Part D drug this clinician prescribed
Cephalexin169$866$5
Fluorouracil13$736$57
Triamcinolone Acetonide18$224$12
Doxycycline Monohydrate22$215$10
Acetaminophen-Codeine31$95$3
Hydrocortisone12$28$2

Year by year

Part D prescribing by year
202435021111% (38)None$42,498
202318512416% (29)0%$2,511
20222682298% (21)0%$2,996
2021168129NoneNone$17,735
202013557NoneNone$17,296
20194123NoneNone$2,464

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

See the drugs prescribed each year

2023: 4 drugs

Part D drugs prescribed in 2023
Cephalexin91$778$9
Triamcinolone Acetonide11$122$11
Acetaminophen-Codeine27$90$3
Clindamycin12$77$6

2022: 3 drugs

Part D drugs prescribed in 2022
Doxycycline Hyclate156$1,354$9
Cephalexin58$422$7
Acetaminophen-Codeine18$85$5

2021: 2 drugs

Part D drugs prescribed in 2021
Doxycycline Hyclate93$1,131$12
Triamcinolone Acetonide14$227$16

2020: 3 drugs

Part D drugs prescribed in 2020
Fluocinonide12$641$53
Ketoconazole16$330$21
Triamcinolone Acetonide18$249$14

Money from drug and device companies

$46 in 2021

Industry payments by year
202111None$46
201911None$115

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
AbbVieHumira$46
1 payment
  • Meals for Humira · 2021-01-21 · $46
See the published payment
Every published payment
AbbVieMeals · 2021-01-21Humira$46
See earlier years (2019)

2019: $115

Payments by company in 2019
PfizerEucrisa$115
1 payment
  • Meals for Eucrisa · 2019-04-30 · $115

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
1780115741
Licence
CA A156863California A156863: Current · expires 2028-07-31
Trained
Stanford University School of Medicine, 2017
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207ND0101X (207ND0101X); Federal specialty code 207N00000X (207N00000X)
Mailing address
450 Broadway St # B, Redwood City, CA, 94063
NPI first listed
2017-03-22
NPI last updated
2024-04-16
NPI record certified
2024-04-16

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

Extra NPI addresses: 450 Broadway St Fl B4, Redwood City, CA, 94063