Pharmaceuticals

10 FDA consultants

These ten FDA consultants advise companies on FDA regulatory and compliance matters, and several of them have worked at the FDA itself. A reader can learn how to plan submissions such as 510(k)s, respond to inspection findings and build quality systems that hold up to FDA review.

10 professionals10 companiesData retrieved September 29, 2026

Professionals to explore

01—10
  1. Colleen Hoyt

    LinkedIn

    Experience: Owner & Principal Consultant · PharmQ Strategy Lab, LLC

    Owner & Principal Consultant at PharmQ Strategy Lab, LLC since 2026; the profile describes her as a former FDA inspectorate leader. At the FDA she was Branch Director, Pharmaceutical Quality Programs, OPQO, ORA (2020–2025), Staff Director, ORA Team Biologics (2010–2020) and Consumer Safety Officer, CDER Office of Compliance (2003–2010).

  2. Hu Jinjie

    LinkedIn

    Experience: Senior Consultant · Biologics Consulting Group, Inc.

    Senior Consultant at Biologics Consulting Group, Inc. since 2012, and former Senior Regulatory Scientist at the FDA (2001–2012). The profile says he works on IVD devices, advising clients on regulatory requirements for their IVD products and helping them develop IVD applications, including CMC, preclinical and clinical sections.

  3. John Gillespy

    LinkedIn

    Experience: President · FDA 510k Consulting, LLC

    President at FDA 510k Consulting, LLC since 2011. The profile describes him as an FDA regulatory consultant and co-founder of a regulatory consulting firm that helps medical device manufacturers, importers, repackagers and relabelers bring new products to the U.S. market, specializing in the 510(k) Premarket Notification pathway.

  4. Johnny Guerra

    LinkedIn

    Experience: FDA Regulatory Consultant President · GUERRA CONSULTING GROUP, INC.

    FDA Regulatory Consultant President at GUERRA CONSULTING GROUP, INC. since 1999, which the profile says provides FDA-related consulting, auditing, training and validation compliance services to pharmaceutical, API, biotechnology, medical device and cosmetic companies. Former Supervisory Chemist (1990–1999) and Computer Specialist (1986–1990) at the FDA.

  5. José E. Cabrera

    LinkedIn

    Experience: Principal Consultant - Owner Operator · De Novo MedTech FDA Consulting

    Principal Consultant - Owner Operator at De Novo MedTech FDA Consulting since 2020, providing regulatory affairs consulting, product development strategy and quality management system implementation for medical device companies, including design change management and related FDA reporting. Former Vice President of Regulatory Affairs and Quality Assurance at Heraeus Medical Components (2019–2020).

  6. Lynne Ensor

    LinkedIn

    Experience: President Owner Regulatory Consultant · Ensor Pharma Biotech Consulting

    President Owner Regulatory Consultant at Ensor Pharma Biotech Consulting since 2025 and Partner at ELIQUENT Life Sciences since 2026; the profile describes her as an ex-FDA senior leader. Former Senior Global Managing Director and Vice President, Pharma Biotech Consulting at NSF (2024–2025) and Senior Vice President, Head of Global Strategic Compliance Consulting at Parexel (2022–2024).

  7. Martina LaGrange

    LinkedIn

    Experience: Principal · FDA Compliance Group LLC

    Principal at FDA Compliance Group LLC since 2007, and former Consumer Safety Officer, Investigator at the Food & Drug Administration (1989–2003). The profile says she was an FDA investigator in the Seattle and Denver District Offices and an FDA Medical Device Specialist, and that her firm's specialties include FDA-483 responses, Warning Letter responses, 510k submissions and PMA submissions.

  8. Megan Shackelford

    LinkedIn

    Experience: Regulatory Affairs Consultant, Medical Devices · Shackelford Consulting Services, LLC

    Regulatory Affairs Consultant, Medical Devices at Shackelford Consulting Services, LLC since 2025. Former Principal Consultant, Regulatory Affairs (2023–2025) and Principal Consultant, Regulatory (2020–2022) at Avania. The profile says she specializes in preparing and submitting 510(k)s, PMAs, IDEs, Q-submissions and de novos, and that she has FDA experience as a lead reviewer in the Gastroenterology and Renal Devices Branch.

  9. Regina Barrell

    LinkedIn

    Experience: Principal Owner · Stonecroft Consulting, LLC

    Principal Owner at Stonecroft Consulting, LLC since 2016; the profile says she provides regulatory consultation to pharmaceutical, medical device, food and dietary supplement companies. At the FDA she was Senior Case Review Expert (2008–2015), Compliance Officer (2001–2008 and 1992–1999) and Supervisory Consumer Safety Officer (2000–2001).

  10. Susan Anthoney-DeWet

    LinkedIn

    Experience: FDA Regulatory Consultant · FDA Regulatory Consultants, LLC

    FDA Regulatory Consultant at FDA Regulatory Consultants, LLC since 2019, and former FDA Consultant at Aegis Regulatory, Inc (2009–2019). The profile says she specializes in medical devices, cosmetics and radiation-emitting products, listing work on 21 CFR 820 quality systems, ISO 13485 and ISO 9001, compliance procedures and SOPs, labeling under 21 CFR 801 and annual reports for electronic products.

Choose the right perspective

Match the consultant's product focus, such as drugs, biologics, devices or diagnostics, and the type of help you need, such as submissions, inspections or quality systems, to your situation. If you are preparing for an inspection or answering FDA findings, ask about the consultant's direct experience with that step.

Questions to take into the conversation

  1. 01What are the most common gaps you find when a company prepares its first FDA submission?
  2. 02How should a company respond to an FDA Form 483 or warning letter to avoid further enforcement?
  3. 03Which parts of a quality system does the FDA look at first during an inspection?

About this directory

This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.

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