Christopher Jean Chen, MD

1 location

Hospitals listed: 057517 · Alta Bates Summit Medical Center · Alta Bates Summit Medical Center - Alta Bates Camp. That is not proof they admit you there this week.

9 plans · 1 carrier

Licence A75341 · Current

Licensed to practise in California · since 2001 · expires 2028-12-31 · Washington University School of Medicine.

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

Surgery centers they own

• The Surgery Center of Alta Bates Summit Medical CenterAmbulatory Surgery Center · Oakland, CAOwner · accredited by JC
  Initial Accreditation4 inspections, 4 with deficiencies · last 2017-07-27: Requirements Met

2 hospitals

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

• Alta Bates Summit Medical CenterOakland, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 3 of 5 · 78% would definitely recommend it
  Overall rating: 5 of 5 starsBetter than the national rate — Death rate among surgical inpatients with serious treatable complications: 130.09 (87.72 to 172.46) · 109 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.274, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.227, Oct 2024 – Sep 2025
• Alta Bates Summit Medical Center - Alta Bates CampBerkeley, 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 · 67% would definitely recommend it
  Overall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.298, Oct 2024 – Sep 2025

$220,338

Medicare paid this office $220,338 for 643 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

643 Original Medicare patients in 2024. Average age 77 · Women 69% · Also on Medicaid 7% · Health risk score 0.85. At or below the middle of the specialty; the typical orthopedic surgery clinician is at 1.13.

Conditions among them: High blood pressure 64% · Chronic kidney disease 19% · Cancer 19% · Depression 19% · Coronary heart disease 17% · Diabetes 16% · Atrial fibrillation 13% · Heart failure 7% · COPD 6% · Stroke 6% · Dementia 4%.

The office billed $955,071, Medicare allowed $293,218 and paid $220,338; for 1,723 services of 24 kinds; $5,034 of it was for drugs given in the office and $215,303 for care.

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.

$0 in 2019

Medicaid paid $0 for 14 billed services this clinician did in 2019, up to 14 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.

$9,911

Pharmacies billed $9,911 in 2024.

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

Opioids were 31% of their Part D prescriptions (184 of 596) in 2024. At or below the middle of the specialty; the typical orthopedic surgery clinician is at 31%. Surgeons prescribe little besides pain medicine after an operation, so their opioid share runs high.

568 generic and 28 brand-name prescriptions · $9,911 in drug cost · 116 antibiotic prescriptions to 86 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.

$33 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.

6 measures · 2023

Medicare asked this office to report how often certain checkups happened in 2023. This is not a grade for the doctor. A specialist’s patients may not need every screening.

What the office says it does

Boxes the office ticked on its Medicare worksheet for 2023. Nobody checks these.

• COVID-19 Vaccine Achievement for Practice Staff
• Implementation of a Personal Protective Equipment (PPE) Plan
• Invasive Procedure or Surgery Anticoagulation Medication Management
• Patient Navigator Program
• Records advance care plans

NPI

1396734505

Licence

CA A75341California A75341: Current · expires 2028-12-31

Trained

Washington University School of Medicine, 1996 · 30 years ago

Gender

Male