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John Roxborough, MD

John Roxborough, MD is a board certified Family Medicine physician who has been in practice since 2017. Dr. Roxborough has a ‘lifestyle first’ approach as he treats the general medical conditions. He performs minor sterile procedures, including large and small joint injections, skin tag removals, cyst removals, as well as incision and drainages.

Dr. Roxborough received his medical degree from American University of Integrative Sciences and completed his Residency at Southern Illinois University. John is from the Washington metropolitan area and lives in DC. He previously worked as a Hospitalist at Memorial Medical Center in Illinois. Today, he continues to work as a Family Medicine at a Federal Qualified Health Center in DC, working with the under-served population.


John mostly works on Urgent Care visits at Randolph Clinic, seeing patients of all ages, and also provides procedures such as:​

  • boil or abscess management

  • drainage or irrigation

  • joint injections

  • mole removal

  • skin tag removal

  • suture removal

  • wound care

  • wart removal



Nik Ooi is double board certified in Psychiatric Mental Health and Adult-Gerontology. Nurse Practitioner Ooi has been in practice since 2018, specializing in psychotherapy and pharmacotherapy for bipolar disorder, major depression, generalized anxiety, and schizophrenia. Regarding Gerontology, he has extensive experience with care for patients 65 years and older.

Nik received his nurse practitioner degree from The Catholic University of America (Washington, DC) and Wilkes University (Pennsylvania). Nik is originally from Malaysia, spent 10 years in Vancouver, Canada, prior to moving to Virginia in 2003. Nik has worked as an ICU, Emergency Department, and Cardiac Unit registered nurse at Martha Jefferson Sentara Hospital in Charlottesville and Inova Mount Vernon Hospital in Alexandria.

Nik's passion for working with a geriatric population includes five years volunteering and working in a 190-bed nursing home and hospice facility in DC.

The role of the Adult-Gerontology Nurse Practitioner (AGNP) is to assess, diagnose and plan for the health needs of all adults, from young adults to seniors. Many AGNPs work in long-term care settings, hospital-based clinics and private practices, which may require them to obtain medical histories, perform physical examinations, order screening tests, interpret diagnostic tests and administer age-appropriate pharmacological and non-pharmacological therapies. AGNPs may also manage transitions between care settings, provide patient and caregiver education and evaluate caregiver competence. When providing care, AGNPs consider the environmental, occupational, social and economic background of patients.

What is Family Medicine?
from the American Academy of Family Physicians

Unlike other specialties that are limited to a particular organ or disease, family physicians are the only specialists qualified to treat most ailments and provide comprehensive health care for people of all ages — from newborns to seniors. This looks like:

  • Caring for patients regardless of age or health condition, sustaining an enduring and trusting relationship

  • Understanding community-level factors and social determinants of health

  • Serving as a patient's first contact for health concerns

  • Navigating the health care system with patients, including specialist and hospital care coordination and follow-up

  • Using data and technology to coordinate services and enhance care

  • Considering the impact of health on a patient’s family

The role of a Psychiatric Mental Health Nurse Practitioner (PMHNP) is to assess, diagnose, and treat the mental health needs of patients. Many PMHNPs provide therapy and prescribe medications for patients who have mental health disorders or substance abuse problems. PMHNPs may also provide physical and psychosocial assessments, emergency psychiatric care and treatment effectiveness evaluations.

Family Medicine
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