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Adam L Harmon, MD

Cardiac Surgery · Belmont

NPI 1225069537

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
18
4 carriers
Office
1
Since medical school
41 years
Albany Medical College of Union University, 1985

Offices

1 location · Dignity Health Medical Foundation · 1,211 clinicians in this group

Looking this up.

Hospitals listed: Sequoia Hospital. 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 Dr. Harmon’s office at (650) 596-7000 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 Prime (HMO-POS)Anthem Blue Cross Partnership 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 G77973 · Current

Licensed to practise in California · since 1993 · expires 2027-11-30 · Albany Medical College of Union University.

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.

  • Sequoia HospitalRedwood City, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of CommonSpirit Health, which runs 145 hospitals in 19 statesPatients rate it 4 of 5 · 81% would definitely recommend it
    Overall rating: 5 of 5 starsBetter than the national rate — Death rate among surgical inpatients with serious treatable complications: 104.12 (51.8 to 156.44) · 56 cases, Jul 2022 – Jun 2024Better than the national rate — Clostridium Difficile (C.Diff): 0, Oct 2024 – Sep 2025
See every measure and the patient survey for Sequoia Hospital

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 1 better, 4 the same, 0 worse of 5 measures. Readmissions: 3 better, 6 the same, 0 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Sequoia Hospital
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths104.12 (51.8 to 156.44) · 56 casesBetterJul 2022 – Jun 2024
Clostridium Difficile (C.Diff)Infections0BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.95 (0 to 1.98) · 472 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.91 (0.58 to 1.24)No differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.8 · 68 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths12.5 · 72 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths9.1 · 258 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths15.5 · 171 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.3 · 81 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.2 · 1,231 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.23 (0.01 to 0.44) · 3,018 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.23 (0.03 to 0.44) · 3,164 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths2.59 (0.47 to 4.71) · 1,402 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.47 (0.04 to 2.9) · 926 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths1.68 (0.21 to 3.16) · 1,310 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths9.54 (4.42 to 14.67) · 978 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths4.98 (1.61 to 8.36) · 924 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.69 (0.19 to 3.19) · 192 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.57 (0 to 1.43) · 2,501 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.5 · 332 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.702No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.853No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.2 · 67 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.3 · 295 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits-27.1 · 76 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-22.3 · 304 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits-4.6 · 178 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits17.3 · 180 casesNoneJul 2023 – Jun 2025
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 305 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.9 · 41 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.7 · 29 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.1 (9.7 to 17.7) · 129 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.7 to 1.2) · 713 casesNo differentJan 2024 – Dec 2024

What patients said (631 patients answered, 27% of those asked)

Patient survey stars by topic at Sequoia Hospital
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness3
Recommend hospital5
Share of patients giving the best answer at Sequoia Hospital
Room was "always" clean78%
Nurses "always" communicated well80%
Doctors "always" communicated well82%
Staff "always" explained60%
Yes, staff "did" give patients this information88%
Yes, staff "did" give patients information about help after discharge86%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully81%
Doctors "always" treated them with courtesy and respect89%
Patients who gave a rating of "9" or "10" (high)77%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully77%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night55%
"YES", patients would definitely recommend the hospital81%
Staff "always" explained possible side effects44%
Yes, staff "did" give patients information about possible symptoms91%

Original Medicare doctor bills

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

Procedures Medicare counted

Procedure volume Medicare published
Coronary artery bypass graft (CABG)1-10None
Leg revascularization (restoring blood flow)1-10None

Procedures year by year

Procedures billed to Original Medicare by year
Procedure201820192020202120222023
Coronary artery bypass using artery graft, 1 graft2317192118–
Replacement of aortic valve on heart-lung machine3020121419–
Harvest of vein using an endoscope–28162815–
Radical reconstruction of mitral valve on heart-lung machine19161215––
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation15121516––
Replacement of mitral valve on heart-lung machine1921–16––

Times billed to Original Medicare each year. A blank year means fewer than 11 people had it, or none: Medicare does not publish smaller counts. Medicare Advantage patients are not included.

Year by year

Original Medicare by year
20235283761.94$85,396$14,496
202274162751.31$212,385$39,943
202194247741.51$283,512$47,808
202068153741.62$149,167$29,152
2019101231741.33$344,578$68,464
2018102236741.28$346,623$66,350
2017125308751.08$413,499$74,851
2016117258751.28$343,818$64,888
201560133751.83$196,994$46,125
201466144751.27$169,998$41,314
201397212751.47$306,839$80,769

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: 1 service

Original Medicare services billed in 2023
Removal of blood clot and portion of chest, neck, or brain artery20$3,290$150

2022: 3 services

Original Medicare services billed in 2022
Replacement of aortic valve on heart-lung machine19$5,657$298
Coronary artery bypass using artery graft, 1 graft18$4,378$243
Harvest of vein using an endoscope15$56$4

2021: 10 services

Original Medicare services billed in 2021
Coronary artery bypass using artery graft, 1 graft21$7,085$337
Coronary artery bypass using artery graft, 2 grafts17$6,170$363
Replacement of mitral valve on heart-lung machine16$5,627$352
Radical reconstruction of mitral valve on heart-lung machine15$5,064$338
Replacement of aortic valve on heart-lung machine14$3,136$224
Coronary artery bypass using vein or artery graft, 2 grafts16$1,152$72
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation16$1,144$72
Harvest of arm artery segment for heart byplass procedure12$785$65
Coronary artery bypass using vein or artery graft, 1 graft12$306$26
Harvest of vein using an endoscope28$82$3

2020: 6 services

Original Medicare services billed in 2020
Coronary artery bypass using artery graft, 1 graft19$4,613$243
Radical reconstruction of mitral valve on heart-lung machine12$3,766$314
Replacement of aortic valve on heart-lung machine12$3,202$267
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation15$1,093$73
Coronary artery bypass using vein or artery graft, 2 grafts12$988$82
Harvest of vein using an endoscope16$48$3

2019: 8 services

Original Medicare services billed in 2019
Coronary artery bypass using artery graft, 2 grafts16$10,622$664
Replacement of mitral valve on heart-lung machine21$9,370$446
Coronary artery bypass using artery graft, 1 graft17$6,883$405
Replacement of aortic valve on heart-lung machine20$6,497$325
Radical reconstruction of mitral valve on heart-lung machine16$5,223$326
Coronary artery bypass using vein or artery graft, 2 grafts15$2,310$154
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation11$859$72
Harvest of vein using an endoscope28$120$4

2018: 7 services

Original Medicare services billed in 2018
Replacement of aortic valve on heart-lung machine30$6,784$226
Coronary artery bypass using artery graft, 1 graft23$6,302$274
Replacement of mitral valve on heart-lung machine19$6,274$330
Radical reconstruction of mitral valve on heart-lung machine19$6,141$323
Replacement of aortic valve with aorta enlargement13$5,903$454
Coronary artery bypass using vein or artery graft, 2 grafts13$1,586$122
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation15$1,057$70

2017: 9 services

Original Medicare services billed in 2017
Replacement of mitral valve on heart-lung machine29$9,898$330
Replacement of aortic valve on heart-lung machine41$9,277$226
Replacement of aortic valve with aorta enlargement11$7,732$644
Coronary artery bypass using artery graft, 2 grafts13$6,489$499
Coronary artery bypass using artery graft, 1 graft29$6,309$218
Placement of graft to aorta on heart-lung machine14$6,003$429
Extensive destruction and reconstruction of right upper heart chamber on heart-lung machine19$2,197$116
Coronary artery bypass using vein or artery graft, 2 grafts17$1,495$88
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation20$1,458$69

2016: 7 services

Original Medicare services billed in 2016
Replacement of aortic valve on heart-lung machine42$10,773$257
Replacement of mitral valve on heart-lung machine22$7,315$332
Radical reconstruction of mitral valve on heart-lung machine21$6,715$320
Coronary artery bypass using artery graft, 1 graft21$6,574$313
Replacement of aortic valve with aorta enlargement11$5,058$460
Extensive destruction and reconstruction of right upper heart chamber on heart-lung machine18$2,138$119
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation20$1,425$71

2015: 2 services

Original Medicare services billed in 2015
Coronary artery bypass using artery graft, 1 graft14$9,267$662
Replacement of aortic valve on heart-lung machine19$8,124$428

2014: 1 service

Original Medicare services billed in 2014
Replacement of aortic valve on heart-lung machine20$7,194$360

2013: 5 services

Original Medicare services billed in 2013
Replacement of aortic valve on heart-lung machine34$18,205$535
Coronary artery bypass using artery graft, 1 graft22$11,358$516
Replacement of mitral valve on heart-lung machine15$9,529$635
Coronary artery bypass or valve procedure reoperation more than 1 month after original operation15$1,432$95
Coronary artery bypass using vein or artery graft, 2 grafts12$1,243$104

Drugs they prescribed that Part D paid

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

Opioids were 46% of their 37 Part D prescriptions in 2022. Too few prescriptions to judge: with under about 50 a year, a handful of patients can swing this share.

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

Year by year

Part D prescribing by year
2022371746% (17)None$976
2021521929% (15)None$2,321
20201611None0%$70
20192813NoneNone$166
201811NoneNone0%$89
20173814NoneNone$371
2016471932% (15)None$438
2015661626% (17)None$1,644
20143012NoneNone$1,207
2013662221% (14)None$1,482

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

See the drugs prescribed each year

2022: 1 drug

Part D drugs prescribed in 2022
Tramadol15$139$9

2021: 1 drug

Part D drugs prescribed in 2021
Tramadol14$44$3

2016: 1 drug

Part D drugs prescribed in 2016
Tramadol13$75$6

2015: 2 drugs

Part D drugs prescribed in 2015
Tramadol15$102$7
Metoprolol12$53$4

2013: 2 drugs

Part D drugs prescribed in 2013
Simvastatin13$105$8
Tramadol13$96$7

Money from drug and device companies

$875 in 2025

Industry payments by year
202536None$875
202411None$16
202311None$23
202223None$76
202134None$159
202035None$108
2019425None$4,661

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
Getinge USA SalesVasoview Hemopro 2$656
3 payments
  • Travel for Vasoview Hemopro 2 · 2025-10-08 · $529
  • Meals for Vasoview Hemopro 2 · 2025-09-29 · $22
  • Meals for Vasoview Hemopro 2 · 2025-09-28 · $105
AtriCureSynergy Ablation System$171
2 payments
  • Meals for Synergy Ablation System · 2025-12-18 · $29
  • Meals for Synergy Ablation System · 2025-10-30 · $142
Edwards LifesciencesKonect Resilia$49
1 payment
  • Meals for Konect Resilia · 2025-09-05 · $49
See all 6 published payments
Every published payment
AtriCureMeals · 2025-12-18Synergy Ablation System$29
AtriCureMeals · 2025-10-30Synergy Ablation System$142
Getinge USA SalesTravel · 2025-10-08Vasoview Hemopro 2$529
Getinge USA SalesMeals · 2025-09-29Vasoview Hemopro 2$22
Getinge USA SalesMeals · 2025-09-28Vasoview Hemopro 2$105
Edwards LifesciencesMeals · 2025-09-05Konect Resilia$49
See earlier years (2024, 2023, 2022, 2021, 2020, 2019)

2024: $16

Payments by company in 2024
Ethicon USEchelon Flex$16
1 payment
  • Meals for Echelon Flex · 2024-06-03 · $16

2023: $23

Payments by company in 2023
Ethicon USProlene$23
1 payment
  • Meals for Prolene · 2023-05-11 · $23

2022: $76

Payments by company in 2022
AtriCureSynergy Ablation System$65
2 payments
  • Meals for Synergy Ablation System · 2022-08-21 · $35
  • Meals for Synergy Ablation System · 2022-02-08 · $30
MedtronicBiomedicus$12
1 payment
  • Meals for Biomedicus · 2022-01-27 · $12

2021: $159

Payments by company in 2021
Medtronic3f$90
1 payment
  • Meals for 3f · 2021-11-12 · $90
Abbott LaboratoriesEpic Stented Tissue Valve$42
2 payments
  • Meals for Epic Stented Tissue Valve · 2021-02-19 · $15
  • Meals for Epic Stented Tissue Valve · 2021-02-19 · $26
Edwards LifesciencesEdwards Sapien 3 Ultra Transcatheter Heart Valve$28
1 payment
  • Meals for Edwards Sapien 3 Ultra Transcatheter Heart Valve · 2021-07-13 · $28

2020: $108

Payments by company in 2020
Abbott LaboratoriesTrifecta Tissue Heart Valve$68
3 payments
  • Meals for Epic Stented Tissue Valve · 2020-01-13 · $19
  • Meals for Trifecta Tissue Heart Valve · 2020-01-13 · $16
  • Meals for Trifecta Tissue Heart Valve · 2020-01-13 · $33
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)Lifevest$21
1 payment
  • Meals for Lifevest · 2020-02-19 · $21
Medtronic VascularClaria Mri$19
1 payment
  • Meals for Claria Mri · 2020-10-01 · $19

2019: $4,661

Payments by company in 2019
Medtronic VascularMosaic$4,069
17 payments
  • Grant for 3f · 2019-09-17 · $1,123
  • Travel for Corevalve Evolut · 2019-08-26 · $156
  • Meals for Corevalve Evolut · 2019-08-26 · $23
  • Travel for Corevalve Evolut · 2019-08-26 · $437
  • Meals for Corevalve Evolut · 2019-08-25 · $116
  • Meals for Mosaic · 2019-01-15 · $88
  • Meals for Mosaic · 2019-01-15 · $28
  • Meals for Mosaic · 2019-01-15 · $10
  • Meals for Simulus · 2019-01-14 · $51
  • Meals for Hancock · 2019-01-14 · $25
  • Travel for Mosaic · 2019-01-14 · $466
  • Travel for Mosaic · 2019-01-14 · $782
  • Meals for Mosaic · 2019-01-14 · $182
  • Meals for Mosaic · 2019-01-14 · $88
  • Meals for Mosaic · 2019-01-14 · $37
  • Meals for Mosaic · 2019-01-14 · $15
  • Travel for Mosaic · 2019-01-14 · $442
Abbott LaboratoriesMitraclip System$441
6 payments
  • Meals for Trifecta Tissue Heart Valve · 2019-12-14 · $33
  • Meals for Epic Stented Tissue Valve · 2019-12-13 · $19
  • Meals for Mitraclip System · 2019-12-09 · $149
  • Meals for Trifecta Tissue Heart Valve · 2019-10-17 · $16
  • Meals for Epic Stented Tissue Valve · 2019-09-11 · $91
  • Meals for Trifecta Gt Tissue Heart Valve · 2019-09-11 · $133
Edwards LifesciencesNone$134
1 payment
  • Meals · 2019-04-25 · $134
Baxter HealthcarePreveleak$17
1 payment
  • Meals for Preveleak · 2019-09-26 · $17

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
96.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1225069537
Licence
CA G77973California G77973: Current · expires 2027-11-30
Trained
Albany Medical College of Union University, 1985 · 41 years ago
Gender
Male
More record details
Sole proprietor
No
Medicaid ID
CA 00A618120
Taxonomy
Thoracic surgery (208G00000X)
Mailing address
3400 Data Dr, Rancho Cordova, CA, 95670
NPI first listed
2006-07-05
NPI last updated
2014-08-04

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