< Back to all providers

Meet Leah Lankford

PMHNP-BC, FNP-C

Patients served: Children (6-12), Teens (13-17), Adults (18+)
States served: Maryland, District of Columbia

I am a board certified Psychiatric and Family Nurse Practitioner with over 10 years of clinical experience. I am deeply committed to providing compassionate, high-quality care to children and adults. With a specialty in both family medicine and psychiatric mental health, I am uniquely equipped to address a wide range of health concerns, whether they involve physical, mental, or emotional well-being. You can count on me to deliver the highest standard of care while supporting your journey toward optimal health and wellness. Together, we can create an individualized holistic treatment plan.

Clinical Expertise

Having worked in diverse healthcare settings and holding various leadership positions, I possess valuable experience that I apply to each clinical scenario. Currently, I manage mental health conditions across the lifespan, such as depression, anxiety, ADHD, insomnia, PTSD, and substance use disorders, using trauma-informed approaches to provide comprehensive care. I also have over 8 years of clinical experience providing full spectrum primary care to families in Washington, DC. Having served clients in the DC/Maryland/Virginia metropolitan area since 2013, I also support clients who may benefit from additional services offered throughout our community.

Education & Degrees

I earned a Master of Science in Nursing, from the prestigious Johns Hopkins University in 2016. Additionally, I completed a Post Master’s Certificate in Psychiatric Mental Health Nurse Practitioner at Wilkes University to enhance my ability to provide comprehensive care that addresses both mind and body. I also hold a Bachelor of Science in Nursing from the University of Virginia.

What made you want to join the ADHD Online team?

Mental health conditions can deeply impact a person’s overall well-being, and I believe in using a holistic, trauma-informed approach to create a safe, supportive environment where healing and growth can happen.

Curious about stimulant or non-stimulant approaches?

If you’re navigating ADHD or other mental health challenges, you have options. At Mentavi Health / ADHD Online, we assess what works for you. 
Some may start with non-medicated approaches like coaching or therapy.  In other cases, patients may explore medication treatment paths when warranted by diagnosis. For some diagnosed with ADHD, the treatment clinician may work with the patient to determine if stimulant approaches work best for them. Stimulant approaches are certain medications under medical treatment that are generally Class II controlled substances. Non-stimulant options are another approach that can work for many.  Medication approaches can be used in tandem with coaching or therapy. 
 
The key is starting with our diagnostic evaluation, which is reviewed by a qualified healthcare professional. Getting clarity on what you’re experiencing is the first step toward feeling more in control. From there, you and your treatment team can determine the best path—whether that’s coaching, therapy, medication, or a combination that works for your life. 
 
If you’re not feeling right, let us walk alongside you by starting with the diagnostic evaluation.
Start now
Take Diagnostic Evaluation
There may be a brief delay in service today between 12:30 PM and 1:30 PM ET. Thank you for your patience — we look forward to assisting you shortly.
 
The ADHD Online Team

Join Our ADHD Research Study

Mentavi Health is conducting ADHD research and is accepting a limited number of participants. Participants in our clinical study will get an ADHD Assessment at no cost. 

Who can join?
  • Age 19+
  • Primary language is English
  • Not previously diagnosed with ADHD
  • Not a current patient of ADHD Online or Mentavi Health
  • A resident of any of the 50 US states or DC (not including Puerto Rico or other territories)
 
Why participate?
Your involvement will help improve mental health care for everyone.
 
Learn more
Looking to take our assessment? That’s available all day, every day, whenever and wherever is best for you!

ADHD Online will be closed on Monday, May 26, 2025, in observance of the Memorial Day holiday.

Live support will be unavailable on Monday, May 26. Send us an email or leave a message, and we’ll get back to you as soon as possible when we return on Tuesday, May 27.

Please note that each clinician sets their holiday hours and may be processing your requests during this time or may also be out.

Live support will be unavailable during regular business hours on Monday, January 20. You can always submit a request or leave a voice message. We’ll get back to you when we return.

Please note: Our clinicians have individual holiday schedules. Check with yours for their availability during the holidays.

Looking to take our Mentavi Diagnostic Evaluation? That’s available all day, every day, whenever and wherever is best for you!

Start your Assessment
Our site is open 24/7! You can always schedule an appointment, check out our podcasts, or read up on the latest ADHD information.

ADHD Online will be closed on Thursday, November 27 and Friday, November 28 in observance of Thanksgiving.

Live support will be unavailable during this time, but you can always submit a request or leave a voice message. We’ll get back to you when we return on Monday, December 1.

Each of our clinicians sets their own holiday hours. Check with your doctor for availability.

Are you looking to take our Assessment? It’s available all day, every day, whenever and wherever is best for you! 

Start Assessment

Provide this form to your local practitioner. You could:

  • Send this link
  • Email the pdf
  • Print it out and bring it to your appointment

Ask your practitioner
to complete the form

In this form, your practitioner will request that ADHD Online continue to provide uninterrupted care

Return the form to us

You or your practitioner can return this form to us via email or fax it to 616-210-3118