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Lindsey Merrihew Haddock, MD

Geriatric Medicine · Stanford

NPI 1144616590

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
16
2 carriers
Office
1

Offices

1 location · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Hospitals listed: 059546 · 059765 · 557754 · Stanford Health Care. That is not proof they admit you there this week.

Plans that list them

16 plans · 2 carriers

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

16 of 16 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

California Medical Board record

Licence A156235 · Current

Licensed to practise in California · since 2018 · expires 2027-08-31 · 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

$51,761

Medicare paid this office $51,761 for 218 people.

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

Largest Original Medicare bills
Long return visit (40+ min)89$16,209$84
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit67$6,244$93
Long return visit (40+ min)24$4,867$119
Return visit (30+ min)45$4,021$66
Telephone medical discussion with physician, 21-30 minutes19$2,769$115
See all 13 services
Every Original Medicare service billed
Long return visit (40+ min)89$16,209$84
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit67$6,244$93
Long return visit (40+ min)24$4,867$119
Return visit (30+ min)45$4,021$66
Telephone medical discussion with physician, 21-30 minutes19$2,769$115
Return visit (30+ min)21$2,711$97
New patient visit (45+ min)22$2,523$115
New patient visit (60+ min)11$1,636$149
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit15$1,500$100
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's71$1,380$15
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes13$1,062$71
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or13$678$26
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's21$405$15

Who their Medicare patients are

218 Original Medicare patients in 2024. Average age 86 · 85 and older 59% · Women 62% · Also on Medicaid 18% · Health risk score 1.98. Above the middle of the specialty; the typical geriatric medicine clinician is at 1.84.

Conditions among them: High blood pressure 75% · Dementia 43% · Coronary heart disease 39% · Chronic kidney disease 39% · Atrial fibrillation 39% · Depression 33% · Heart failure 30% · Diabetes 29% · Cancer 22% · COPD 20% · Stroke 19%.

The office billed $231,565, Medicare allowed $71,867 and paid $51,761; for 687 services of 22 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
2024218687861.98$231,565$51,761
2023219628861.63$216,336$49,056
202252221782.53$141,392$23,147
2021110493812.19$312,183$54,102
20203076842.44$36,341$6,672
20193138832.90$18,137$3,154

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
Long return visit (40+ min)105$18,965$85
New patient visit (60+ min)56$9,360$167
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or60$4,326$28
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit41$3,224$79
Return visit (30+ min)33$2,792$75
Initial hospital care with moderate level of medical decision making at least 75 minutes15$2,385$159
New patient visit (45+ min)14$1,709$122
Telephone medical discussion with physician, 21-30 minutes13$1,340$89
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes19$1,212$45

2022: 5 services

Original Medicare services billed in 2022
Subsequent nursing facility care with high level of medical decision making, per day at least 45 minutes32$13,240$117
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes21$3,176$81
Initial nursing facility care with high level of medical decision making, per day 50 minutes or more12$1,792$149
Nursing facility discharge management, more than 30 minutes16$1,450$91
Extended inpatient or observation hospital service, first hour14$1,223$82

2021: 6 services

Original Medicare services billed in 2021
Subsequent nursing facility care with high level of medical decision making, per day at least 45 minutes61$25,418$123
Initial nursing facility care with high level of medical decision making, per day 50 minutes or more42$6,776$151
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes44$6,095$83
Residence visit for established patient with high level of medical decision making, per day at least 60 minutes15$4,037$150
Nursing facility discharge management, more than 30 minutes36$3,425$95
Extended inpatient or observation hospital service, first hour30$3,053$83

Drugs they prescribed that Part D paid

$278,666

Pharmacies billed $278,666 in 2024.

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

Opioids were 1% of their Part D prescriptions (18 of 2,375) in 2024. At or below the middle of the specialty; the typical geriatric medicine clinician is at 2%.

2,019 generic and fewer than 11 brand-name prescriptions · $278,666 in drug cost · 61 antibiotic prescriptions to 26 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
Eliquis98$69,937$714
Jardiance25$28,964$1,159
Xarelto17$20,536$1,208
Trelegy Ellipta13$7,566$582
Tradjenta47$7,019$149
See all 58 drugs
Every Part D drug this clinician prescribed
Eliquis98$69,937$714
Jardiance25$28,964$1,159
Xarelto17$20,536$1,208
Trelegy Ellipta13$7,566$582
Tradjenta47$7,019$149
Movantik12$6,729$561
Atorvastatin221$2,348$11
Quetiapine30$1,554$52
Colchicine11$1,427$130
Tamsulosin76$1,378$18
Synthroid13$1,376$106
Duloxetine21$1,369$65
Sertraline87$1,210$14
Mirtazapine24$1,137$47
Levothyroxine81$1,066$13
Metoprolol57$1,057$19
Amlodipine Besylate100$905$9
Estradiol23$806$35
Losartan68$797$12
Escitalopram46$771$17
Rosuvastatin43$751$17
Gabapentin35$633$18
Omeprazole45$603$13
Carbidopa-Levodopa19$534$28
Alendronate52$490$9
Triamcinolone Acetonide30$485$16
Diltiazem 24hr Er (Cd)13$463$36
Fluticasone Propionate35$445$13
Donepezil36$444$12
Pantoprazole36$409$11
Finasteride23$389$17
Albuterol Sulfate Hfa14$372$27
Pramipexole Dihydrochloride12$350$29
Amiodarone13$317$24
Prednisone18$311$17
Pregabalin16$311$19
Valsartan14$310$22
Carvedilol28$294$11
Ezetimibe12$272$23
Cephalexin33$260$8
Buspirone18$241$13
Bupropion Hcl Sr12$233$19
Montelukast20$230$11
Allopurinol26$225$9
Famotidine29$220$8
Simvastatin25$183$7
Pravastatin13$182$14
Furosemide38$182$5
Trazodone18$143$8
Spironolactone21$128$6
Metoprolol22$119$5
Hydrochlorothiazide21$110$5
Risperidone20$109$5
Nitrofurantoin Mono-Macro11$101$9
Clonazepam11$96$9
Latanoprost11$90$8
Bupropion12$71$6
Lisinopril24$60$3

Year by year

Part D prescribing by year
20242,3751891% (18)None$278,666
20231,565161None21%$184,675
20221,101651% (14)23%$75,375
2021839923% (22)17%$60,332
20206817NoneNone$4,667
201992180% (0)37%$12,595
2018363560% (0)22%$42,840
2017437570% (0)None$34,976
2016371920% (0)None$27,734
201580320% (0)14%$5,885

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

See the drugs prescribed each year

2023: 34 drugs

Part D drugs prescribed in 2023
Eliquis107$67,784$633
Jardiance35$18,453$527
Tradjenta54$13,879$257
Xarelto14$13,555$968
Sertraline63$2,123$34
Memantine Hcl Er36$1,933$54
Atorvastatin104$1,499$14
Metoprolol29$920$32
Mirtazapine19$911$48
Tamsulosin40$757$19
Amlodipine Besylate54$741$14
Levothyroxine40$718$18
Albuterol Sulfate Hfa12$715$60
Losartan28$674$24
Omeprazole29$608$21
Carbidopa-Levodopa41$541$13
Rosuvastatin20$486$24
Valsartan15$476$32
Duloxetine11$466$42
Gabapentin24$399$17
Donepezil24$392$16
Glimepiride36$365$10
Allopurinol46$342$7
Metoprolol67$309$5
Escitalopram16$272$17
Simvastatin43$259$6
Fluticasone Propionate12$238$20
Colchicine11$234$21
Furosemide33$211$6
Cephalexin14$198$14
Pantoprazole12$187$16
Alendronate15$163$11
Spironolactone16$131$8
Metformin Hcl Er18$113$6

2022: 23 drugs

Part D drugs prescribed in 2022
Eliquis88$16,264$185
Tradjenta55$13,254$241
Jardiance40$12,768$319
Alphagan P13$3,187$245
Memantine Hcl Er34$1,668$49
Divalproex Sodium Er13$894$69
Atorvastatin83$821$10
Tamsulosin52$719$14
Quetiapine12$597$50
Losartan48$368$8
Glimepiride41$357$9
Carbidopa-Levodopa36$346$10
Clopidogrel13$299$23
Metoprolol64$264$4
Allopurinol44$252$6
Amlodipine Besylate28$225$8
Metformin Hcl Er44$183$4
Simvastatin41$167$4
Levothyroxine15$153$10
Sertraline35$144$4
Mirtazapine12$106$9
Omeprazole17$70$4
Escitalopram12$58$5

2021: 25 drugs

Part D drugs prescribed in 2021
Jardiance19$9,899$521
Eliquis36$9,074$252
Tradjenta12$2,114$176
Atorvastatin55$638$12
Levothyroxine32$379$12
Mirtazapine16$355$22
Tamsulosin20$275$14
Gabapentin23$248$11
Olanzapine12$201$17
Metoprolol12$199$17
Losartan20$187$9
Oxycodone14$184$13
Dutasteride11$164$15
Latanoprost12$162$13
Furosemide13$132$10
Amlodipine Besylate21$94$4
Glimepiride11$90$8
Metoprolol18$88$5
Clopidogrel14$85$6
Allopurinol13$70$5
Alendronate11$66$6
Metformin Hcl Er14$55$4
Lisinopril11$54$5
Simvastatin13$52$4
Sertraline13$47$4

2019: 1 drug

Part D drugs prescribed in 2019
Amlodipine Besylate11$47$4

2018: 8 drugs

Part D drugs prescribed in 2018
Spiriva16$10,078$630
Levetiracetam12$391$33
Gabapentin12$230$19
Atorvastatin21$190$9
Fluticasone Propionate19$145$8
Montelukast11$100$9
Amlodipine Besylate27$79$3
Clopidogrel14$45$3

2017: 10 drugs

Part D drugs prescribed in 2017
Potassium Chloride14$1,109$79
Ventolin Hfa13$682$52
Atorvastatin32$546$17
Gabapentin25$536$21
Omeprazole24$517$22
Levothyroxine11$271$25
Levetiracetam15$238$16
Lisinopril21$91$4
Fluticasone Propionate12$83$7
Amlodipine Besylate21$45$2

2016: 7 drugs

Part D drugs prescribed in 2016
Proair Hfa30$1,754$58
Atorvastatin36$560$16
Metoprolol11$211$19
Gabapentin21$189$9
Omeprazole22$166$8
Ranitidine17$110$6
Lisinopril19$60$3

Professional record

NPI
1144616590
Licence
CA A156235California A156235: Current · expires 2027-08-31
Trained
Stanford University School of Medicine, 2015
Video visits
Lists video visits
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Internal medicine (207R00000X); Federal specialty code 207RG0300X (207RG0300X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2015-04-13
NPI last updated
2024-04-18
NPI record certified
2024-04-18

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