Dr. Fok specializes in general gynecology, family planning, contraception and early pregnancy management.

Clinical Focus

  • Family Planning
  • Obstetrics and Gynecology
  • Contraception

Academic Appointments

Professional Education

  • Medical Education:State University of New York Syracuse Medical School Registrar (2012) NY
  • Residency:Ohio State University Medical Center Surgery Residency (2012) OH


All Publications

  • Abortion through telemedicine. Current opinion in obstetrics & gynecology Fok, W. K., Mark, A. 2018; 30 (6): 394–99


    PURPOSE OF REVIEW: Medical abortion offers a well tolerated and effective method to terminate early pregnancy, but remains underutilized in the United States. Over the last decade, 'telemedicine' has been studied as an option for medical abortion to improve access when patients and providers are not together. A number of studies have explored various practice models and their feasibility as an alternative to in-person service provision.RECENT FINDINGS: A direct-to-clinic model of telemedicine medical abortion has similar efficacy with no increased risk of significant adverse events when compared with in-person abortion. A direct-to-consumer model is currently being studied in the United States. International models of direct-to-consumer medical abortion have shown promising results.SUMMARY: The introduction of telemedicine into abortion care has been met with early success. Currently, there are limitations to the reach of telemedicine because of specific restrictions on mifepristone in the United States as well as laws that specifically prohibit telemedicine for abortion. If these barriers are removed, telemedicine can potentially increase abortion access.

    View details for PubMedID 30399015

  • HIV and contraception CURRENT OPINION IN OBSTETRICS & GYNECOLOGY Fok, W., Blumenthal, P. D. 2017; 29 (6): 419–26


    Contraception is a vital component of medical care for women with HIV or at high risk of acquiring HIV. Over the last several years, there has been emerging evidence regarding the safety and effectiveness of various contraceptive methods, ultimately leading to a revision in the WHO Medical Eligibility Criteria for contraceptive use.Progestogen-only injectables may be associated with an increased risk of HIV acquisition and its use has been revised to category 2 from category 1. Etonogestrel and levonorgestrel levels are lower in women who concurrently use contraceptive implant and efavirenz-based antiretroviral therapy. Multipurpose technology, aimed at providing antiretroviral medication and contraception, is an area of ongoing research but is not yet clinically available.It is important for providers who care for women with HIV or at high risk of HIV to inquire about pregnancy intentions. If contraception is desired, these women should be offered all available methods, with counseling regarding possible risks of contraceptive failure or HIV acquisition.

    View details for PubMedID 28863005

  • Update on emergency contraception. Current opinion in obstetrics & gynecology Fok, W. K., Blumenthal, P. D. 2016; 28 (6): 522-529


    Emergency contraception provides a critical and time-sensitive opportunity for women to prevent undesired pregnancy after intercourse. Both access and available options for emergency contraception have changed over the last several years.Emergency contraceptive pills can be less effective in obese women. The maximum achieved serum concentration of levonorgestrel (LNG) is lower in obese women than women of normal BMI, and doubling the dose of LNG (3 mg) increases its concentration maximum, approximating the level in normal BMI women receiving one dose of LNG. Repeated use of both LNG and ulipristal acetate (UPA) is well tolerated. Hormonal contraception can be immediately started following LNG use, but should be delayed for 5 days after UPA use to avoid dampening the efficacy of UPA. The copper intrauterine device (IUD) is the only IUD approved for emergency contraception (and the most effective method of emergency contraception), but use of LNG IUD as emergency contraception is currently being investigated. Accurate knowledge about emergency contraception remains low both for patients and healthcare providers.Emergency contraception is an important yet underutilized tool available to women to prevent pregnancy. Current options including copper IUD and emergency contraceptive pills are safe and well tolerated. Significant gaps in knowledge of emergency contraception on both the provider and user level exist, as do barriers to expedient access of emergency contraception.

    View details for PubMedID 27676405