Skip to main content
UniHealth

Doctor search

Melanie G Hayden

Neurosurgery · Stanford

NPI 1518125210

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
18
4 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

18 plans · 4 carriers

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

18 of 18 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
Anthem Full Dual Advantage Aligned (HMO D-SNP)Anthem Blue CrossListedOct 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 A105004 · Current

Licensed to practise in California · since 2008 · expires 2028-06-30 · University of California, San Diego 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

$185,311

Medicare paid this office $185,311 for 236 people.

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

Largest Original Medicare bills
Computer-assisted radiosurgery of simple growth of brain, first growth35$36,166$882
Computer-assisted radiosurgery of complex growth of brain, first growth14$16,353$1,168
Long return visit (40+ min)70$15,801$170
Computer-assisted radiosurgery of simple growth of brain, each additional growth28$15,664$178
Computer-assisted radiosurgery of growth of spine, first growth15$15,510$969
See all 15 services
Every Original Medicare service billed
Computer-assisted radiosurgery of simple growth of brain, first growth35$36,166$882
Computer-assisted radiosurgery of complex growth of brain, first growth14$16,353$1,168
Long return visit (40+ min)70$15,801$170
Computer-assisted radiosurgery of simple growth of brain, each additional growth28$15,664$178
Computer-assisted radiosurgery of growth of spine, first growth15$15,510$969
Return visit (30+ min)69$12,228$116
New patient visit (60+ min)35$7,319$209
Long return visit (40+ min)34$5,486$131
New patient visit (60+ min)25$4,081$163
Computer-assisted procedure inside brain13$2,682$192
Use of operating microscope11$2,121$177
Telephone medical discussion with physician, 21-30 minutes16$2,104$117
Return visit (30+ min)15$1,311$77
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes11$806$73
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes12$615$44

Who their Medicare patients are

236 Original Medicare patients in 2024. Average age 71 · Under 65 11% · 85 and older 7% · Women 58% · Also on Medicaid 29% · Health risk score 2.32. Sicker patients than 9 in 10 peers; the typical neurosurgery clinician is at 1.46.

Conditions among them: High blood pressure 72% · Cancer 54% · Diabetes 33% · Stroke 23% · Coronary heart disease 22% · Chronic kidney disease 21% · Depression 21% · Atrial fibrillation 19% · Heart failure 10% · COPD 10% · Dementia 9%.

The office billed $1,234,186, Medicare allowed $234,288 and paid $185,311; for 623 services of 31 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
2024236623712.32$1,234,186$185,311
2023247652721.96$1,266,604$176,670
2022224622721.98$1,153,498$160,235
2021217556712.12$1,032,793$152,273
2020162385712.04$601,423$85,247
2019148359711.73$796,605$115,962
2018122245701.98$452,587$69,037
2017106255712.04$503,098$79,301
201683204711.59$432,863$60,041
201567167731.48$405,772$61,794
20142957721.47$152,132$25,314

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: 9 services

Original Medicare services billed in 2023
Removal of skull bone for removal of growth of upper brain16$35,391$1,863
Computer-assisted radiosurgery of simple growth of brain, first growth29$29,666$899
Return visit (30+ min)157$23,152$85
Computer-assisted radiosurgery of simple growth of brain, each additional growth22$11,754$181
New patient visit (45+ min)64$7,562$118
Computer-assisted procedure inside brain19$4,159$198
Use of operating microscope19$3,836$183
Long return visit (40+ min)23$3,461$128
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes11$542$45

2022: 8 services

Original Medicare services billed in 2022
Computer-assisted radiosurgery of simple growth of brain, first growth35$38,941$906
Return visit (30+ min)141$20,364$87
Computer-assisted radiosurgery of simple growth of brain, each additional growth32$17,853$184
Long return visit (40+ min)45$7,261$130
New patient visit (45+ min)46$5,136$112
Computer-assisted procedure inside brain14$2,647$189
Use of operating microscope14$2,449$175
Telephone medical discussion with physician, 21-30 minutes12$1,181$91

2021: 8 services

Original Medicare services billed in 2021
Computer-assisted radiosurgery of simple growth of brain, first growth33$38,097$907
Return visit (30+ min)128$18,118$88
Computer-assisted radiosurgery of simple growth of brain, each additional growth24$13,551$188
Computer-assisted radiosurgery of growth of spine, first growth11$13,116$1,009
New patient visit (45+ min)64$8,089$126
Long return visit (40+ min)30$4,193$131
New patient visit (60+ min)14$2,536$181
Telephone medical discussion with physician, 21-30 minutes16$1,583$93

2020: 6 services

Original Medicare services billed in 2020
Computer-assisted radiosurgery of simple growth of brain, first growth16$19,054$907
Return visit (30+ min)86$8,915$72
Computer-assisted radiosurgery of simple growth of brain, each additional growth11$5,650$188
Short return visit (20+ min)41$2,027$43
New patient visit (30+ min)30$1,993$66
Return visit (30+ min)17$1,334$78

2019: 8 services

Original Medicare services billed in 2019
Computer-assisted radiosurgery of simple growth of brain, first growth33$34,672$889
Computer-assisted radiosurgery of simple growth of brain, each additional growth17$8,346$185
Computer-assisted procedure inside brain14$3,189$199
Short return visit (20+ min)54$3,009$43
New patient visit (30+ min)44$2,948$67
Use of operating microscope12$2,394$184
Return visit (30+ min)19$1,321$70
Short return visit (20+ min)17$971$44

2018: 6 services

Original Medicare services billed in 2018
Computer-assisted radiosurgery of simple growth of brain, first growth14$13,122$875
Short return visit (20+ min)32$1,670$41
New patient visit (30+ min)24$1,631$68
Return visit (30+ min)21$1,468$70
New patient visit (45+ min)11$1,268$115
Short return visit (20+ min)14$829$44

2017: 6 services

Original Medicare services billed in 2017
Computer-assisted radiosurgery of simple growth of brain, first growth15$16,483$868
Short return visit (20+ min)24$1,460$43
New patient visit (30+ min)21$1,426$68
Return visit (30+ min)21$1,411$61
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes12$1,077$90
Short return visit (20+ min)12$599$40

2016: 6 services

Original Medicare services billed in 2016
Computer-assisted radiosurgery of simple growth of brain, first growth11$12,193$871
Short return visit (20+ min)22$1,430$45
Return visit (30+ min)12$1,331$70
New patient visit (45+ min)11$1,269$115
New patient visit (30+ min)20$1,221$61
Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes11$981$89

2015: 4 services

Original Medicare services billed in 2015
New patient visit (45+ min)24$2,595$108
Return visit (30+ min)14$1,054$70
New patient visit (30+ min)13$884$68
Short return visit (20+ min)12$774$46

2014: 1 service

Original Medicare services billed in 2014
New patient visit (45+ min)11$1,272$116

Medicaid work

$1,287 in 2023

Medicaid paid $1,287 for 42 billed services this clinician did in 2023, up to 13 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 2023
Return visit (30+ min)42$1,287
Medicaid work by year
202342113$1,287
202113113$332
201914114$151
See the largest Medicaid services in earlier years

2021

Largest Medicaid services in 2021
Return visit (30+ min)13$332

2019

Largest Medicaid services in 2019
Short return visit (20+ min)14$151

Money from drug and device companies

$387 in 2025

Industry payments by year
202512None$387
201911None$109

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
MedtronicMazor X System$387
2 payments
  • Travel for Mazor X System · 2025-12-01 · $10
  • Travel for Mazor X System · 2025-12-01 · $377
See all 2 published payments
Every published payment
MedtronicTravel · 2025-12-01Mazor X System$10
MedtronicTravel · 2025-12-01Mazor X System$377
See earlier years (2019)

2019: $109

Payments by company in 2019
NX DevelopmentGleolan$109
1 payment
  • Meals for Gleolan · 2019-11-07 · $109

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
1518125210
Licence
CA A105004California A105004: Current · expires 2028-06-30
Trained
University of California, San Diego School of Medicine, 2007
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 207T00000X (207T00000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2008-05-29
NPI last updated
2024-04-26
NPI record certified
2024-04-26

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