Jenna J Brimmer, MD

1 location

Hospitals listed: 053129 · 057004 · 059537 · Alameda Hospital · Highland Hospital · Sutter Delta Medical Center. That is not proof they admit you there this week.

3 plans · 1 carrier

Licence A81625 · Current

Licensed to practise in California · since 2003 · expires 2028-07-31 · University of California, Davis 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 Internal Medicine - Internal Medicine

Medicare did not publish checkup rates for this clinician.

3 hospitals

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

• Alameda HospitalAlameda, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency departmentPart of Alameda Health System, which runs 4 hospitalsPatients rate it 3 of 5 · 64% would definitely recommend it
  Overall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0, Oct 2024 – Sep 2025
• Highland HospitalOakland, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of Alameda Health System, which runs 4 hospitalsPatients rate it 3 of 5 · 70% would definitely recommend it
  Overall rating: 1 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, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.568, Oct 2024 – Sep 2025
• Sutter Delta Medical CenterAntioch, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 2 of 5 · 60% would definitely recommend it
  Overall rating: 3 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.173, Oct 2024 – Sep 2025

$272,980

Medicare paid this office $272,980 for 240 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

240 Original Medicare patients in 2024. Average age 74 · Under 65 17% · 85 and older 20% · Women 50% · Also on Medicaid 59% · Health risk score 2.96. Above the middle of the specialty; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 75% · Diabetes 48% · Chronic kidney disease 42% · Coronary heart disease 33% · Heart failure 33% · Atrial fibrillation 31% · Depression 31% · COPD 20% · Cancer 15% · Dementia 15% · Stroke 10%.

The office billed $1,078,360, Medicare allowed $350,514 and paid $272,980; for 4,763 services of 20 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.

$93,027 in 2024

Medicaid paid $93,027 for 2,237 billed services this clinician did in 2024, up to 74 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.

$5,265

Pharmacies billed $5,265 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 109) in 2024. At or below the middle of the specialty; the typical internal medicine clinician is at 1%.

104 generic and fewer than 11 brand-name prescriptions · $5,265 in drug cost · 98 antibiotic prescriptions to 52 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.

Year by year

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

$815 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.

NPI

1295703775

Licence

CA A81625California A81625: Current · expires 2028-07-31

Trained

University of California, Davis School of Medicine, 2001 · 25 years ago

Gender

Female