Colin Patrick Dunn, MD
General Surgery · Los Gatos
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 20
- 4 carriers
- Office
- 1
Offices
1 location
Looking this up.
Hospitals listed: Ahmc Seton Medical Center · Good Samaritan Hospital. That is not proof they admit you there this week.
Plans that list them
20 plans · 4 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Dunn’s office at (669) 240-0616 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
20 of 20 plans
| Alignment Health Advantage PPO (PPO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Astiva Health C-SNP WOW - NorCal (HMO C-SNP) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Premier Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Savings Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Blue Shield Inspire (HMO) | Blue Shield of California | Listed | Aug 26, 2026 |
| Imperial Courage Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Dynamic Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Senior Value (HMO C-SNP) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
California Medical Board record
Licence A186661 · Current
Licensed to practise in California · since 2023 · expires 2027-05-31 · Albert Einstein College of Medicine of Yeshiva University.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Hospitals they work in
2 hospitals
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Ahmc Seton Medical CenterDaly City, CAAcute Care Hospital · Proprietary · Has an emergency departmentPatients rate it 3 of 5 · 59% would definitely recommend itOverall rating: 1 of 5 starsNo measure marked better or worse than the national rate
- Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend itOverall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025
See every measure and the patient survey for Ahmc Seton Medical Center
Behind the star rating — Deaths: 0 better, 6 the same, 0 worse of 6 measures. Safety: 1 better, 2 the same, 0 worse of 3 measures. Readmissions: 0 better, 5 the same, 2 worse of 7 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.98 (0 to 2.04) · 229 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.91 (0.49 to 1.34) | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 7.9 · 34 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 13.4 · 60 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 12.5 · 103 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 18.9 · 159 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 13.9 · 36 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 4.4 · 739 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.19 (0 to 0.41) · 1,636 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.3 (0.09 to 0.51) · 1,681 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.47 (1.02 to 5.93) · 355 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.64 (0 to 3.36) · 44 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.77 (1.1 to 4.43) · 361 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 8.62 (0 to 18.38) · 43 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.98 (1.71 to 10.25) · 43 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.72 (0.21 to 3.24) · 73 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.3 (0 to 1.23) · 1,387 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.5 · 30 cases | None | Apr 2023 – Mar 2025 |
| Clostridium Difficile (C.Diff)Infections | 0 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.9 · 77 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 190 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 22.4 · 53 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 26.4 · 110 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 63.8 · 154 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 17.9 · 258 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.4 · 53 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13 (9.6 to 17.6) · 48 cases | No different | Jan 2022 – Dec 2024 |
What patients said (257 patients answered, 20% of those asked)
| Cleanliness | 2 |
| Nurse communication | 3 |
| Doctor communication | 4 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 2 |
| Quietness | 2 |
| Recommend hospital | 3 |
| Room was "always" clean | 59% |
| Nurses "always" communicated well | 77% |
| Doctors "always" communicated well | 80% |
| Staff "always" explained | 56% |
| Yes, staff "did" give patients this information | 83% |
| Yes, staff "did" give patients information about help after discharge | 81% |
| Doctors "always" explained things so they could understand | 78% |
| Doctors "always" listened carefully | 77% |
| Doctors "always" treated them with courtesy and respect | 85% |
| Patients who gave a rating of "9" or "10" (high) | 59% |
| Staff "always" explained new medications | 68% |
| Nurses "always" explained things so they could understand | 70% |
| Nurses "always" listened carefully | 75% |
| Nurses "always" treated them with courtesy and respect | 86% |
| "Always" quiet at night | 44% |
| "YES", patients would definitely recommend the hospital | 59% |
| Staff "always" explained possible side effects | 44% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
See every measure and the patient survey for Good Samaritan Hospital
Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 1 better, 6 the same, 1 worse of 8 measures. Readmissions: 0 better, 5 the same, 4 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Clostridium Difficile (C.Diff)Infections | 0.337 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.75 (0 to 1.67) · 1,340 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.84 (0.54 to 1.14) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 143.59 (98.7 to 188.49) · 98 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.7 · 45 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 7.1 · 100 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12.7 · 270 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 11.3 · 573 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 15.6 · 820 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.5 · 482 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.3 · 3,711 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.12 (0 to 0.3) · 8,866 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.2 (0.01 to 0.38) · 9,051 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 2.65 (0.74 to 4.56) · 1,929 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.8 (0.21 to 3.39) · 670 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.33 (0.88 to 3.78) · 1,836 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 6.73 (0 to 13.46) · 669 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 7.58 (3.96 to 11.19) · 654 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.59 (0.13 to 3.04) · 496 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.27 (0 to 0.87) · 7,373 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.1 · 152 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 1.08 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.542 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.484 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.565 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15.8 · 327 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 24.2 · 703 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 61.1 · 289 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 36.3 · 665 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 25.4 · 856 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19 · 978 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.3 · 144 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 12.3 · 46 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 21.2 · 135 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.8 (10.1 to 18.6) · 129 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1.2 (0.9 to 1.5) · 531 cases | No different | Jan 2024 – Dec 2024 |
What patients said (704 patients answered, 24% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 2 |
| Quietness | 1 |
| Recommend hospital | 3 |
| Room was "always" clean | 66% |
| Nurses "always" communicated well | 75% |
| Doctors "always" communicated well | 71% |
| Staff "always" explained | 54% |
| Yes, staff "did" give patients this information | 83% |
| Yes, staff "did" give patients information about help after discharge | 81% |
| Doctors "always" explained things so they could understand | 66% |
| Doctors "always" listened carefully | 69% |
| Doctors "always" treated them with courtesy and respect | 78% |
| Patients who gave a rating of "9" or "10" (high) | 63% |
| Staff "always" explained new medications | 68% |
| Nurses "always" explained things so they could understand | 69% |
| Nurses "always" listened carefully | 73% |
| Nurses "always" treated them with courtesy and respect | 82% |
| "Always" quiet at night | 38% |
| "YES", patients would definitely recommend the hospital | 67% |
| Staff "always" explained possible side effects | 40% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$24,540
Medicare paid this office $24,540 for 39 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 14 | $2,399 | $71 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 12 | $1,397 | $116 |
Procedures Medicare counted
| Colonoscopy | 1-10 | None |
| Hernia repair - groin (open) | 1-10 | None |
| Hernia repair (minimally invasive) | 11 | More than 73% of doctors who do this |
| Removal of tissue | 1-10 | None |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 71 | More than 70% of doctors who do this |
Who their Medicare patients are
39 Original Medicare patients in 2024. Average age 76 · Women 62% · Health risk score 1.46. At or below the middle of the specialty; the typical general surgery clinician is at 1.69.
Conditions among them: High blood pressure 75% · Diabetes 41% · Heart failure 41% · Atrial fibrillation 33% · Coronary heart disease 28% · Cancer 28% · Depression 28%.
The office billed $93,251, Medicare allowed $30,800 and paid $24,540; for 126 services of 42 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 | 39 | 126 | 76 | 1.46 | $93,251 | $24,540 |
| 2023 | 31 | 33 | 69 | 1.57 | $15,343 | $3,554 |
| 2022 | 14 | 18 | 64 | 1.05 | $8,658 | $2,206 |
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
| Return visit (30+ min) | 17 | $1,480 | $87 |
Drugs they prescribed that Part D paid
$832
Pharmacies billed $832 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 23% of their Part D prescriptions (15 of 65) in 2024. At or below the middle of the specialty; the typical general surgery clinician is at 34%.
64 generic and fewer than 11 brand-name prescriptions · $832 in drug cost.
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.
| Ondansetron Odt | 17 | $173 | $10 |
| Oxycodone | 13 | $82 | $6 |
Year by year
| 2024 | 65 | 25 | 23% (15) | None | $832 |
| 2023 | 264 | 85 | 18% (48) | 6% | $9,663 |
| 2022 | 115 | 44 | 23% (26) | None | $4,899 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 6 drugs
| Ondansetron Odt | 52 | $1,337 | $26 |
| Sucralfate | 32 | $1,095 | $34 |
| Famotidine | 31 | $469 | $15 |
| Pantoprazole | 12 | $397 | $33 |
| Omeprazole | 12 | $327 | $27 |
| Oxycodone | 38 | $130 | $3 |
2022: 3 drugs
| Ondansetron Odt | 18 | $576 | $32 |
| Famotidine | 14 | $517 | $37 |
| Oxycodone | 25 | $40 | $2 |
Money from drug and device companies
$5,544 in 2025
| 2025 | 1 | 5 | None | $5,544 |
| 2024 | 2 | 2 | None | $160 |
| 2023 | 2 | 3 | None | $68 |
| 2022 | 4 | 4 | None | $1,285 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Intuitive Surgical | Davinci Xi | $5,544 | 5 payments
|
See all 5 published payments
| Intuitive Surgical | Education · 2025-08-11 | Davinci Xi | $1,500 |
| Intuitive Surgical | Education · 2025-07-02 | Davinci Xi | $1,500 |
| Intuitive Surgical | Meals · 2025-05-14 | Da Vinci Surgical System | $28 |
| Intuitive Surgical | Meals · 2025-05-13 | Da Vinci Surgical System | $16 |
| Intuitive Surgical | Education · 2025-05-13 | Davinci Xi | $2,500 |
See earlier years (2024, 2023, 2022)
2024: $160
| Ethicon US | Linx Reflux Management System | $126 | 1 payment
|
| TELA Bio | Ovitex 2s | $34 | 1 payment
|
2023: $68
| Genzyme | Dupixent | $49 | 2 payments
|
| Pinnacle Biologics | Photofrin | $19 | 1 payment
|
2022: $1,285
| CGG Medical | None | $1,200 | 1 payment
|
| Apollo Endosurgery US | Overstitch Endoscopic Suturing System | $36 | 1 payment
|
| Medtronic | Smartpill | $28 | 1 payment
|
| Boston Scientific | Resolution Clip | $21 | 1 payment
|
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 93.8 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1568817450
- Licence
- CA A186661, PA MD477569California A186661: Current · expires 2027-05-31
- Trained
- Albert Einstein College of Medicine of Yeshiva University, 2016
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Surgery (208600000X)
- Mailing address
- 1484 Pollard Rd # 3028, Los Gatos, CA, 95032
- NPI first listed
- 2016-04-27
- NPI last updated
- 2024-05-05
- NPI record certified
- 2024-05-05
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 1860 El Camino Real Ste 101, Burlingame, CA, 94010