Martin Bronk, MD
General Surgery · Menlo Park
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 9
- 1 carrier
- Offices
- 2
Offices
2 locations · University Healthcare Alliance · 334 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. Bronk’s office at (650) 498-6500 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| 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 |
California Medical Board record
Licence G42455 · Current
Licensed to practise in California · since 1980 · expires 2027-10-31 · 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 itOverall 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.
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.31 (4.24 to 6.37) · 8,661 cases | Worse | Jul 2022 – Jun 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 14.1 (12.7 to 15.7) · 2,191 cases | Worse | Jan 2024 – Dec 2024 |
| Postoperative respiratory failure rateComplications and deaths | 4.08 (1.95 to 6.21) · 5,296 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.317 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.446 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.241 | Better | Oct 2024 – Sep 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.7 (0.6 to 0.9) · 3,348 cases | Better | Jan 2024 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.06 (0.45 to 1.67) · 5,374 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.86 (0.72 to 1) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 166.09 (137.88 to 194.3) · 470 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.1 · 192 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.4 · 146 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.7 · 253 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 6.3 · 880 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 935 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.7 · 501 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 7,730 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.13 (0 to 0.27) · 20,799 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.14 to 0.43) · 23,182 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 0.94 (0.2 to 1.68) · 5,694 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.36 (1.54 to 3.19) · 7,846 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.2 (3.76 to 6.64) · 5,603 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.38 (0.23 to 2.53) · 2,211 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.52 (0.21 to 0.83) · 19,915 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.6 · 416 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.869 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.857 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.368 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 16.2 · 247 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 1,021 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 47.8 · 258 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -1.6 · 990 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 20.8 · 976 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.5 · 959 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.2 (4.4 to 6.2) · 2,191 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 425 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.6 · 158 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.6 · 183 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.7 (10.4 to 15.4) · 4,578 cases | No different | Jan 2022 – Dec 2024 |
What patients said (6,810 patients answered, 25% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 63% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 79% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 79% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 53% |
| "YES", patients would definitely recommend the hospital | 83% |
| Staff "always" explained possible side effects | 50% |
| Yes, staff "did" give patients information about possible symptoms | 90% |
Original Medicare doctor bills
$39,243
Medicare paid this office $39,243 for 188 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Repair of groin hernia (5 years or older) | 16 | $7,389 | $462 |
| Short return visit | 78 | $5,436 | $49 |
| Short return visit (20+ min) | 51 | $4,099 | $71 |
| New patient visit (30+ min) | 42 | $3,553 | $85 |
| New patient visit (15+ min) | 35 | $2,242 | $64 |
See all 7 services
| Repair of groin hernia (5 years or older) | 16 | $7,389 | $462 |
| Short return visit | 78 | $5,436 | $49 |
| Short return visit (20+ min) | 51 | $4,099 | $71 |
| New patient visit (30+ min) | 42 | $3,553 | $85 |
| New patient visit (15+ min) | 35 | $2,242 | $64 |
| Return visit (30+ min) | 13 | $1,584 | $113 |
| New patient visit (45+ min) | 11 | $1,571 | $143 |
Procedures Medicare counted
| Hernia repair - groin (open) | 26 | More than 98% of doctors who do this |
| Mastectomy | 1-10 | None |
| Melanoma (skin cancer) excision | 1-10 | None |
| Removal of tissue | 1-10 | None |
| Skin biopsy | 1-10 | None |
Who their Medicare patients are
188 Original Medicare patients in 2024. Average age 76 · Women 47% · Health risk score 0.99. At or below the middle of the specialty; the typical general surgery clinician is at 1.69.
Conditions among them: High blood pressure 66% · Coronary heart disease 31% · Cancer 23% · Atrial fibrillation 19% · Heart failure 13% · Diabetes 12% · Chronic kidney disease 11% · COPD 7% · Depression 7%.
The office billed $181,612, Medicare allowed $53,520 and paid $39,243; for 339 services of 25 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 | 188 | 339 | 76 | 0.99 | $181,612 | $39,243 |
| 2023 | 225 | 372 | 76 | 1.10 | $208,241 | $45,976 |
| 2022 | 254 | 381 | 76 | 1.03 | $223,830 | $50,947 |
| 2021 | 267 | 492 | 76 | 1.00 | $308,847 | $74,106 |
| 2020 | 234 | 393 | 77 | 1.22 | $220,809 | $44,733 |
| 2019 | 290 | 517 | 76 | 1.07 | $290,741 | $62,705 |
| 2018 | 245 | 455 | 76 | 1.05 | $249,218 | $58,799 |
| 2017 | 261 | 482 | 76 | 1.03 | $232,034 | $56,183 |
| 2016 | 284 | 565 | 76 | 1.22 | $243,498 | $61,459 |
| 2015 | 266 | 485 | 75 | 1.00 | $205,392 | $53,672 |
| 2014 | 244 | 532 | 76 | 1.07 | $195,320 | $57,078 |
| 2013 | 251 | 569 | 76 | 0.98 | $181,455 | $55,721 |
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: 5 services
| Short return visit (20+ min) | 67 | $6,127 | $80 |
| Repair of groin hernia (5 years or older) | 11 | $4,997 | $454 |
| Short return visit | 74 | $4,579 | $49 |
| New patient visit (30+ min) | 36 | $3,569 | $99 |
| New patient visit (15+ min) | 56 | $3,355 | $60 |
2022: 8 services
| Short return visit (20+ min) | 68 | $5,330 | $69 |
| Repair of groin hernia (5 years or older) | 11 | $5,262 | $478 |
| New patient visit (30+ min) | 48 | $4,506 | $94 |
| New patient visit (15+ min) | 56 | $3,661 | $65 |
| Short return visit | 56 | $3,424 | $51 |
| Return visit (30+ min) | 16 | $1,865 | $110 |
| New patient visit (45+ min) | 14 | $1,750 | $125 |
| Simple or single drainage of skin abscess | 12 | $1,234 | $103 |
2021: 9 services
| Repair of groin hernia (5 years or older) | 22 | $10,692 | $486 |
| Short return visit (20+ min) | 74 | $6,649 | $80 |
| New patient visit (30+ min) | 59 | $5,587 | $95 |
| Short return visit | 64 | $3,972 | $49 |
| New patient visit (15+ min) | 54 | $3,695 | $68 |
| Long return visit (40+ min) | 20 | $3,633 | $158 |
| New patient visit (45+ min) | 23 | $3,282 | $143 |
| Return visit (30+ min) | 26 | $3,038 | $109 |
| New patient visit (60+ min) | 11 | $2,139 | $194 |
2020: 8 services
| Short return visit (20+ min) | 68 | $5,400 | $65 |
| New patient visit (30+ min) | 49 | $4,265 | $87 |
| Short return visit | 56 | $3,313 | $36 |
| New patient visit (45+ min) | 15 | $2,037 | $136 |
| New patient visit (15+ min) | 27 | $1,942 | $72 |
| Simple or single drainage of skin abscess | 13 | $1,320 | $102 |
| Return visit (30+ min) | 12 | $1,077 | $90 |
| New patient visit (10+ min) | 21 | $772 | $37 |
2019: 8 services
| Repair of groin hernia (5 years or older) | 25 | $12,305 | $473 |
| New patient visit (30+ min) | 66 | $5,656 | $86 |
| Short return visit | 92 | $5,353 | $42 |
| Short return visit (20+ min) | 69 | $5,288 | $62 |
| Repair of groin hernia (5 years or older) | 12 | $4,841 | $403 |
| New patient visit (15+ min) | 50 | $3,455 | $69 |
| Simple or single drainage of skin abscess | 18 | $2,540 | $110 |
| New patient visit (10+ min) | 29 | $1,145 | $39 |
2018: 8 services
| Repair of groin hernia (5 years or older) | 18 | $8,571 | $476 |
| Short return visit (20+ min) | 72 | $5,677 | $65 |
| Short return visit | 96 | $4,484 | $39 |
| New patient visit (30+ min) | 38 | $3,323 | $87 |
| New patient visit (15+ min) | 38 | $2,615 | $69 |
| Simple or single drainage of skin abscess | 18 | $2,190 | $109 |
| Return visit (30+ min) | 11 | $1,106 | $101 |
| New patient visit (10+ min) | 26 | $904 | $35 |
2017: 7 services
| Repair of groin hernia (5 years or older) | 25 | $11,375 | $455 |
| Short return visit | 97 | $5,185 | $38 |
| Short return visit (20+ min) | 59 | $3,713 | $58 |
| New patient visit (30+ min) | 36 | $2,989 | $83 |
| New patient visit (15+ min) | 45 | $2,564 | $57 |
| Simple or single drainage of skin abscess | 13 | $1,364 | $105 |
| New patient visit (10+ min) | 26 | $1,006 | $39 |
2016: 9 services
| Repair of groin hernia (5 years or older) | 24 | $11,019 | $459 |
| Short return visit | 111 | $5,932 | $37 |
| New patient visit (15+ min) | 58 | $3,880 | $67 |
| Short return visit (20+ min) | 50 | $3,770 | $64 |
| New patient visit (30+ min) | 40 | $3,401 | $85 |
| Simple or single drainage of skin abscess | 18 | $1,997 | $105 |
| New patient visit (10+ min) | 32 | $1,178 | $37 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 19 | $248 | $13 |
| Office for the evaluation and management of established patient that may not require presence of healthcare professional | 11 | $218 | $15 |
2015: 9 services
| Repair of groin hernia (5 years or older) | 13 | $5,800 | $446 |
| Short return visit | 98 | $5,299 | $39 |
| Short return visit (20+ min) | 53 | $3,744 | $62 |
| New patient visit (15+ min) | 55 | $3,575 | $65 |
| New patient visit (30+ min) | 32 | $3,023 | $94 |
| Simple or single drainage of skin abscess | 14 | $1,464 | $91 |
| Return visit (30+ min) | 11 | $1,221 | $102 |
| New patient visit (10+ min) | 36 | $1,119 | $31 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 18 | $282 | $16 |
2014: 9 services
| Repair of groin hernia (5 years or older) | 20 | $9,193 | $460 |
| Short return visit | 92 | $5,836 | $39 |
| Short return visit (20+ min) | 52 | $3,946 | $65 |
| New patient visit (30+ min) | 36 | $3,329 | $92 |
| New patient visit (15+ min) | 50 | $3,222 | $64 |
| New patient visit (45+ min) | 16 | $2,440 | $152 |
| New patient visit (10+ min) | 36 | $1,104 | $31 |
| Simple or single drainage of skin abscess | 11 | $1,103 | $92 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 20 | $306 | $15 |
2013: 9 services
| Repair of groin hernia (5 years or older) | 19 | $8,725 | $459 |
| Short return visit | 83 | $5,320 | $40 |
| Short return visit (20+ min) | 56 | $4,573 | $66 |
| New patient visit (15+ min) | 53 | $3,375 | $64 |
| New patient visit (30+ min) | 28 | $2,633 | $94 |
| New patient visit (10+ min) | 57 | $2,276 | $40 |
| Simple or single drainage of skin abscess | 12 | $1,093 | $91 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 29 | $499 | $17 |
| Office for the evaluation and management of established patient that may not require presence of healthcare professional | 13 | $271 | $18 |
Drugs they prescribed that Part D paid
$1,044
Pharmacies billed $1,044 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
44 generic and fewer than 11 brand-name prescriptions · $1,044 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.
| Gabapentin | 20 | $54 | $3 |
Year by year
| 2024 | 45 | 33 | None | None | $1,044 |
| 2023 | 65 | 46 | 23% (15) | None | $3,612 |
| 2022 | 61 | 51 | 26% (16) | None | $1,325 |
| 2021 | 79 | 60 | 19% (15) | None | $1,666 |
| 2020 | 57 | 46 | None | None | $1,886 |
| 2019 | 88 | 62 | None | None | $1,504 |
| 2018 | 92 | 54 | None | None | $1,501 |
| 2017 | 87 | 48 | None | 0% | $988 |
| 2016 | 98 | 55 | 40% (39) | None | $1,562 |
| 2015 | 60 | 38 | 53% (32) | None | $961 |
| 2014 | 65 | 46 | 51% (33) | None | $921 |
| 2013 | 70 | 42 | 40% (28) | None | $3,198 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 1 drug
| Gabapentin | 20 | $81 | $4 |
2022: 1 drug
| Gabapentin | 18 | $56 | $3 |
2021: 2 drugs
| Gabapentin | 43 | $216 | $5 |
| Hydrocodone-Acetaminophen | 11 | $51 | $5 |
2020: 1 drug
| Gabapentin | 22 | $77 | $3 |
2019: 2 drugs
| Gabapentin | 34 | $191 | $6 |
| Ranitidine | 11 | $58 | $5 |
2018: 3 drugs
| Gabapentin | 36 | $191 | $5 |
| Cephalexin | 11 | $84 | $8 |
| Ranitidine | 12 | $56 | $5 |
2017: 2 drugs
| Gabapentin | 37 | $151 | $4 |
| Ranitidine | 15 | $66 | $4 |
2016: 3 drugs
| Hydrocodone-Acetaminophen | 35 | $323 | $9 |
| Sulfamethoxazole-Trimethoprim | 13 | $295 | $23 |
| Cephalexin | 11 | $73 | $7 |
2015: 1 drug
| Acetaminophen-Codeine | 27 | $157 | $6 |
2014: 1 drug
| Hydrocodone-Acetaminophen | 27 | $157 | $6 |
2013: 1 drug
| Hydrocodone-Acetaminophen | 27 | $160 | $6 |
Money from drug and device companies
$188 in 2019
A payment is not proof that care is biased.
| Davol | Phasix | $120 | 1 payment
|
| Genentech USA | Kadcyla | $68 | 1 payment
|
See all 2 published payments
| Davol | Meals · 2019-12-18 | Phasix | $120 |
| Genentech USA | Meals · 2019-09-06 | Kadcyla | $68 |
Professional record
- NPI
- 1083678726
- Licence
- CA G42455California G42455: Current · expires 2027-10-31
- Trained
- Stanford University School of Medicine, 1978
- Video visits
- Lists video visits
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Surgery (208600000X)
- Mailing address
- Po Box 60000 File 72484, San Francisco, CA, 94160
- NPI first listed
- 2006-04-12
- NPI last updated
- 2024-04-28
- NPI record certified
- 2024-04-28
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 300 Pasteur Dr, Palo Alto, CA, 94304