Zachary E Brewer, MD

3 locations · First Choice Physician Partners · Regents of the Univ of CA

Hospitals listed: Adventist Health Sonora · Doctors Medical Center · Emanuel Medical Center · Mercy Medical Center. That is not proof they admit you there this week.

11 plans · 2 carriers

Licence A121994 · Current

Licensed to practise in California · since 2012 · expires 2028-01-31 · Vanderbilt University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

• American Board of Thoracic Surgery - Thoracic and Cardiac Surgery

4 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

• Adventist Health SonoraSonora, CAAcute Care Hospital · Voluntary non-profit - Church · No emergency department · Birthing-friendlyPart of Adventist Health, which runs 28 hospitals in 3 statesPatients rate it 3 of 5 · 64% would definitely recommend it
  Overall rating: 3 of 5 starsWorse than the national rate — Postoperative wound dehiscence rate: 3.5 (2.04 to 4.96) · 288 cases, Jul 2022 – Jun 2024Worse than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 1.3 (1 to 1.6) · 1,004 cases, Jan 2024 – Dec 2024Better than the national rate — Clostridium Difficile (C.Diff): 0.185, Oct 2024 – Sep 2025
• Doctors Medical CenterModesto, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of Tenet Healthcare, which runs 77 hospitals in 12 statesPatients rate it 2 of 5 · 59% would definitely recommend it
  Overall rating: 1 of 5 starsWorse than the national rate — CMS Medicare PSI 90: Patient safety and adverse events composite: 1.36 (1.02 to 1.71), Jul 2022 – Jun 2024Worse than the national rate — Pressure ulcer rate: 1.35 (0.81 to 1.9) · 6,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.281, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.326, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.183, Oct 2024 – Sep 2025
• Emanuel Medical CenterTurlock, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of Tenet Healthcare, which runs 77 hospitals in 12 statesPatients rate it 2 of 5 · 58% would definitely recommend it
  Overall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.231, Oct 2024 – Sep 2025
• Mercy Medical CenterMerced, 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 3 of 5 · 59% would definitely recommend it
  Overall rating: 3 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.168, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.364, Oct 2024 – Sep 2025

$121,947

Medicare paid this office $121,947 for 103 people.

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

Procedures Medicare counted

Procedures year by year

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.

Who their Medicare patients are

103 Original Medicare patients in 2024. Average age 77 · Women 30% · Also on Medicaid 35% · Health risk score 1.83. Above the middle of the specialty; the typical cardiac surgery clinician is at 1.73.

Conditions among them: High blood pressure 75% · Coronary heart disease 75% · Heart failure 62% · Diabetes 53% · Atrial fibrillation 50% · Chronic kidney disease 46% · COPD 25% · Depression 16% · Stroke 16% · Cancer 14%.

The office billed $542,989, Medicare allowed $152,135 and paid $121,947; for 304 services of 46 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 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.

$6,263 in 2018

Medicaid paid $6,263 for 157 billed services this clinician did in 2018, up to 27 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.

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

Opioids were 0% of their 25 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 prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

$2,454 in 2025

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Medicare did not publish checkup rates for this clinician.

NPI

1467741975

Licence

CA A121994, NV 16965California A121994: Current · expires 2028-01-31

Trained

Vanderbilt University School of Medicine, 2011 · 15 years ago

Group

First Choice Physician Partners · Regents of the Univ of CA

Gender

Male