Yesenia Mejia

Chemical Inventory Audits & Regulatory Reporting

• Conducted site-wide chemical inventory audits to ensure accuracy and compliance with internal EHS requirements and regulatory standards.
• Managed quarterly and semi-annual regulated chemical inventories, including:
• Freon inventory and reporting
• SF inventory and reporting
• Critical gas cylinder audits (oxygen, hydrogen, toxic gases)
• Supported hazardous materials tracking for high-risk and regulated substances.

Chemical Management System Administration

• Performed daily ChemSafety (EMS) data entry, ensuring timely and accurate chemical records.
• Submitted and tracked chemical additions and updates to EHS for approval and compliance follow-up.
• Supported scanning, auditing, and data integrity within the chemical management system.

Waste & Hazardous Materials Compliance

• Maintained hazardous waste logs and processed waste work orders to support compliant waste handling and disposal.
• Conducted routine waste stream inventory audits, including B042 waste inventories.
• Supported proper labeling, documentation, and tracking of chemical and waste materials.

Inventory Control & Risk Reduction

• Conducted First-In, First-Out (FIFO) walkthroughs to reduce expired chemicals and compliance risk.
• Performed regular CCI inventory counts (full/empty cylinders) and coordinated deliveries and pickups.
• Ensured timely communication with vendors and internal teams regarding chemical inventory status.

Audit Support & Cross-Functional Coordination

• Coordinated with lab owners to schedule audits and resolve inventory discrepancies.
• Provided routine status updates to EHS on audit progress, findings, and corrective actions.
• Participated in Chemical Management and Chemical Safety meetings, following up on action items and communicating updates to stakeholders.
• Supported audit readiness through accurate documentation and proactive issue resolution.

• Answering and transferring multiple calls
• Pulling and preparing patient files
• Greeting patient, preparing chart for ultrasound technician
• Taking vital signs
• Scheduling appointments
• Updating patient demographics
• Verifying insurance and medical eligibility
• Uploading patient reports

• In charge of daily office operations in which responsibilities include overseeing staff, work on staff schedule, payroll, invoices, debts for customers, company expenses, weekly reports preparing for audits.

• Registering new and existing patients into uni-care system.
• Billing clients in enterprise resource planning program.
• Screening client for medical eligibility.
• Update changes in uni-care.
• Monthly claim reports for social services.
• Attend county meetings and trainings for updates.

• Greeting and attending customers with any questions and problems.
• Answering and transferring phone calls.
• Registering new customers.
• Filing and prepare for audits.
• Weekly reports.
• Reports for state board.
• Overseeing cashiers
• Customer service

• In charge of daily office operations in which responsibilities include overseeing of supplies inventories, purchasing and receiving, billing and collections, payroll distribution, daily cash receipts and bank deposits, duplication and binding of audit reports and proposals, appointment scheduling, travel arrangements for Partners and auditors, filing and answering phones. Assisted in tax return organization and accounts payable functions.