California / Envirnmtl Health Hazrd Assess / Research Scientist IV (Epidemiology/Biostatistics)

Job-title file

Research Scientist IV (Epidemiology/Biostatistics)

Collect and analyze data to inform decisions, produce reports, and identify trends.

5 employees hold this title in Envirnmtl Health Hazrd Assess. Median total compensation for the role is $139,207, above the department median of $109,925.

Employees: 5
Total payroll: $693.4K
Role median: $139,207
Agency median: $109,925
Comparison: Above

Compare departments

This role across California

Research Scientist IV (Epidemiology/Biostatistics) is held in 7 California departments. In Envirnmtl Health Hazrd Assess, the median of $139,207 ranks #3 of 7.

Highest-paying departments for this role

Food and Agriculture

$166,735 · 1

Health Care Access and Information

$140,073 · 1

Pesticide Regulation

$138,302 · 1

Department of Health Care Services

$124,206 · 4

Department of Public Health

$117,240 · 11

Water Resources Control Board

$75,049 · 2

Median total compensation for the Research Scientist IV (Epidemiology/Biostatistics) role in other Californiadepartments (highest first). Each bar links to that department’s page for this role.

Compare jurisdictions

Research Scientist beyond California

This role is reported in 6 jurisdictions. In California, the median of $104,459 ranks #2 of 6. See Research Scientist across all of California →

Highest-paying jurisdictions for this role

$109,532 · 158

$96,654 · 395

$80,039 · 10

$73,100 · 13

$60,000 · 7

Median total compensation for comparable Research Scientist roles in other jurisdictions. Titles are matched by normalized name across sources, not identical job classification, and pay is not cost-of-living adjusted. Each bar links to that jurisdiction’s page for the role.

Record list

Employees with this title

Page 1

Keita Ebisu

Research Scientist IV (Epidemiology/Biostatistics)/Envirnmtl Health Hazrd Assess

2025 total comp

$150,684

Base pay: $150,409
Overtime: $0
Other pay: $275
Benefits: $0
Total compensation: $150,684
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda

Source-specific fields

Base Pay: $12,394
Cs/csu: Cs
Position Number: 8111355609001
Salary Total: $12,582
Total Pay: $150,684

At Envirnmtl Health Hazrd Assess, Keita Ebisu serves as a Research Scientist IV (Epidemiology/Biostatistics). They work full-time. Their 2025 pay totaled $150,684. Their bargaining unit is R10.

Sana Majid

Research Scientist IV (Epidemiology/Biostatistics)/Envirnmtl Health Hazrd Assess

2025 total comp

$147,684

Base pay: $147,409
Overtime: $0
Other pay: $275
Benefits: $0
Total compensation: $147,684
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Sacramento

Source-specific fields

Base Pay: $12,394
Cs/csu: Cs
Position Number: 8111145609001
Salary Total: $12,332
Total Pay: $147,684

Sana Majid holds the role of Research Scientist IV (Epidemiology/Biostatistics) at Envirnmtl Health Hazrd Assess. Their status is full-time. In 2025, their total compensation was $147,684. Their bargaining unit is R10.

Susannah Cohen

Research Scientist IV (Epidemiology/Biostatistics)/Envirnmtl Health Hazrd Assess

2025 total comp

$139,207

Base pay: $138,657
Overtime: $0
Other pay: $550
Benefits: $0
Total compensation: $139,207
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Sacramento
Middle name: S

Source-specific fields

Base Pay: $11,826
Cs/csu: Cs
Position Number: 8111305609001
Salary Total: $11,767
Total Pay: $139,207

Susannah Cohen holds the role of Research Scientist IV (Epidemiology/Biostatistics) at Envirnmtl Health Hazrd Assess. Their status is full-time. In 2025, their total compensation was $139,207. They are represented by R10.

Xiangmei Wu

Research Scientist IV (Epidemiology/Biostatistics)/Envirnmtl Health Hazrd Assess

2025 total comp

$136,105

Base pay: $134,459
Overtime: $0
Other pay: $1,646
Benefits: $0
Total compensation: $136,105
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda

Source-specific fields

Base Pay: $12,394
Cs/csu: Cs
Position Number: 8111355609002
Salary Total: $11,759
Total Pay: $136,105

At Envirnmtl Health Hazrd Assess, Xiangmei Wu serves as a Research Scientist IV (Epidemiology/Biostatistics). They work full-time. Their 2025 pay totaled $136,105. They are represented by R10.

Ruwan Thilakaratne

Research Scientist IV (Epidemiology/Biostatistics)/Envirnmtl Health Hazrd Assess

2025 total comp

$119,768

Base pay: $119,218
Overtime: $0
Other pay: $550
Benefits: $0
Total compensation: $119,768
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: A

Source-specific fields

Base Pay: $10,051
Cs/csu: Cs
Position Number: 8111355609003
Salary Total: $10,251
Total Pay: $119,768

Ruwan Thilakaratne is a Research Scientist IV (Epidemiology/Biostatistics) at Envirnmtl Health Hazrd Assess. They work full-time. 2025 total compensation came to $119,768. Their bargaining unit is R10.