Mark Olesen, MD
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- NPI Number
- 1558363184
- Provider Type
- Individual Practitioner
- Credential
- MD
- Primary Specialty
- Preventive Medicine - Preventive Medicine/occupational Environmental Medicine
- Practice Address
- 8901 Wisconsin Avenue, National Naval Medical Center
- City, State ZIP
- Behtesda, MD 20889
- Phone
- (301) 295-2427
- Last Updated
- June 8, 2026
- Source
- Publicly available data
Mark Olesen, MD is a preventive medicine - preventive medicine/occupational environmental medicine provider located in Behtesda, MD. They offer preventive medicine - preventive medicine/occupational environmental medicine services to patients in the Behtesda area.
As a preventive medicine - preventive medicine/occupational environmental medicine provider in Behtesda, this clinician evaluates and treats patients for a range of common conditions seen in Behtesda and throughout MD.
The practice is located at 8901 Wisconsin Avenue, National Naval Medical Center, Behtesda, MD 20889. Patients can call 3012952427 to schedule an appointment or use the directions link above to find the office from anywhere in the area.
Patients typically visit this provider for people seek mental health support for anxiety, depression, stress, grief, relationship issues, trauma, and life transitions. Therapy is appropriate whenever support is needed, not only in crisis.
If you plan to see this provider, it is a good idea to confirm that the practice accepts your insurance and is in-network before scheduling. Coverage details vary by plan, and our quote tool can help you compare options in MD.
This profile was last verified on June 8, 2026. Provider information is sourced from publicly available data and may not reflect recent changes. Please confirm details directly with the practice before scheduling.
Mark Olesen, MD
8901 Wisconsin Avenue, National Naval Medical Center, Behtesda, MD 20889
Call for hours and appointments. Hours may vary by provider and location.
A patient’s guide to preventive medicine - preventive medicine/occupational environmental medicine care in Behtesda, MD.
What a Preventive Medicine - Preventive Medicine/occupational Environmental Medicine provider does
Mental health providers — including psychologists, licensed counselors, and therapists — help patients manage emotional, behavioral, and psychological challenges. They provide talk therapy, assessments, and treatment planning for a wide range of conditions.
Common conditions treated
Mental health providers treat anxiety, depression, post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD), grief and loss, relationship issues, eating disorders, substance use, and life transitions. They also help with stress management and personal growth.
Common reasons to schedule a visit
People seek mental health support for anxiety, depression, stress, grief, relationship issues, trauma, and life transitions. Therapy is appropriate whenever support is needed, not only in crisis.
What to expect during a visit
A first therapy session usually involves sharing your history and current concerns, getting to know your provider, and setting goals for treatment. Sessions are confidential and tailored to your needs.
Insurance coverage considerations
Many insurance plans now cover mental health services at parity with medical care, often without requiring a referral. Telehealth options are widely available. Compare plans to find affordable mental health coverage.
How to choose the right preventive medicine - preventive medicine/occupational environmental medicine provider in Behtesda
Look for a licensed mental health provider whose approach (such as cognitive behavioral therapy, EMDR, or solution-focused therapy) fits your needs. Comfort and trust with your therapist are among the strongest predictors of positive outcomes.
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Insurance acceptance not listed
The public NPI registry does not include insurance acceptance data. Contact the office directly to ask if they accept your insurance plan. You can also use our quote tool to find health plans in MD.
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Common questions about Mark Olesen, MD in Behtesda, MD.
How do I make an appointment with Mark Olesen, MD?
Call Mark Olesen, MD directly at their Behtesda office to schedule a visit. You can also use the contact form on this page to send a message and the practice will respond.
Does Mark Olesen, MD accept insurance?
Provider insurance information is not included in the public NPI registry data that powers this directory. Contact the office directly to ask whether they accept your specific insurance plan. You can also use our quote tool to find health plans in MD.
What are the office hours for Mark Olesen, MD in Behtesda?
Office hours for Mark Olesen, MD in Behtesda are not currently published. Call the practice directly to confirm hours before your visit.
Is parking available at Mark Olesen, MD's Behtesda location?
Most provider offices in Behtesda offer on-site or nearby street parking. Call Mark Olesen, MD in Behtesda ahead of time to confirm parking options and accessibility accommodations.
Does Mark Olesen, MD offer telehealth?
Many preventive medicine - preventive medicine/occupational environmental medicine providers in MD now offer telehealth visits for follow-ups, medication management, and routine consultations. Call Mark Olesen, MD to ask whether a telehealth visit is appropriate for your needs.
What should I expect at my first therapy session with Mark Olesen, MD?
Your first session with Mark Olesen, MD in Behtesda is typically a 45–60 minute intake. They will review your history, current concerns, and goals for therapy. Everything discussed is confidential, and you can ask questions about they approach and treatment style.
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Claim ProfileData is sourced from publicly available records. Public records do not confirm active license status, quality of care, insurance acceptance, or network participation. Please verify details directly with the provider before scheduling. Last updated June 8, 2026.