About Marcelinus Onyejiji
Clientele seen
Children (<13)
Adults (25-64)
Teenagers (13-17)
Seniors (65+)
Young adults (18-24)
Individuals
Identity
Gender
MaleLanguages spoken
English
Getting to know Marcelinus Onyejiji
I’m a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with a passion for helping individuals of all ages find lasting relief from mental health struggles. I specialize in treating anxiety, depression, ADHD, mood disorders, and trauma-related symptoms. My approach is holistic and personalized—while medication management is a key part of my practice, I focus on identifying the root causes of mental health challenges, whether they are biological, nutritional, hormonal, or related to lifestyle factors.
In addition to traditional treatments, I have experience with advanced therapies like Transcranial Magnetic Stimulation (TMS), Spravato. My goal is to empower clients to better understand their mental and physical health, and to work toward long-term recovery, potentially reducing or even eliminating the need for medication over time.
What should a new client know about working with you?
New clients can expect a collaborative, compassionate, and non-judgmental environment. My style is warm, attentive, and highly individualized—I take time to truly understand your concerns, your strengths, and your goals. I combine evidence-based medication management with a whole-person approach, exploring factors such as sleep, nutrition, hormones, stress, and lifestyle patterns.
I believe that clients do best when they feel heard and supported, so our work together will always move at a pace that feels safe for you. Whether you're seeking stability, clarity, or long-term recovery, my goal is to help you feel empowered, informed, and confident in your treatment plan.
What is your typical process for working with clients?
A typical first session includes a thorough psychiatric evaluation where we review your symptoms, medical history, lifestyle factors, and treatment goals. I focus on identifying both immediate concerns and underlying contributors so that we can build a personalized treatment plan together.
Follow-up appointments are collaborative and structured. We review your progress, discuss medication responses (if applicable), and explore factors such as sleep, stress, routines, nutrition, and emotional patterns. While I provide medication management, I also integrate psychoeducation and teach practical tools to help you feel more in control of your mental health.
I do not offer long-term talk therapy, but I often incorporate brief therapeutic guidance and can provide referrals for ongoing therapy when needed.
Is this doctor in your insurance network?
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In-network insurances
Aetna
BlueCross BlueShield
Cigna
Medicare
UnitedHealthcare
More information on payments and coverage
Please note: WE DO NOT ACCEPT MEDICAID OR MEDICARE AT THIS TIME
I accept both insurance and self-pay (cash pay) options.
For insurance-covered visits, I partner with Headway to manage credentialing, benefits verification, and billing. Your insurance eligibility will be checked automatically before your appointment, and Headway will securely process any copays, coinsurance, or deductible amounts. I do not collect payments in the office.
For self-pay clients, payments are processed securely through SimplePractice. Cash-pay rates are transparent, and receipts or superbills can be provided upon request.
I currently accept insurance plans through Headway, including:
Aetna
Anthem Blue Cross California / Blue Cross Blue Shield
Cigna
Carelon Behavioral Health (Beacon Health)
Quest Behavioral Health
Please make sure your insurance information is accurate when booking so your coverage can be verified prior to your visit.
Office locations
Marcelinus Onyejiji, NP also offers online video visits for patients
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Education and background
Practice names
Education and training
- Walden University, Master's in Adult Psychiatric and Mental Health Nursing
- University of Lynchburg, Doctor of Health Administration
NPI number
1467287714
How soon can I make an appointment with Marcelinus Onyejiji?
Generally, Marcelinus Onyejiji has appointments available on Zocdoc within 1 week. You can see Marcelinus Onyejiji's earliest availability on Zocdoc and make an appointment online.
Is Marcelinus Onyejiji accepting new patients?
Marcelinus Onyejiji generally accepts new patients on Zocdoc. You can see Marcelinus Onyejiji's earliest availability on Zocdoc and schedule an appointment online.
Does Marcelinus Onyejiji accept my insurance?
Choose your insurance plan to verify if Marcelinus Onyejiji is in-network.
Can I make an appointment with Marcelinus Onyejiji online?
Yes, you can make an appointment online with Marcelinus Onyejiji using Zocdoc. It’s simple, secure, and free.
What practice does Marcelinus Onyejiji work with?
Marcelinus Onyejiji works with LOTUSMIND CARE LLC.
Where is Marcelinus Onyejiji's office located?
Marcelinus Onyejiji has 9 office locations, including in San Jose, La Jolla, Beverly Hills, Markleeville, and Irvine, view full addresses on Marcelinus Onyejiji's profile.
What are common reasons for patients to see Marcelinus Onyejiji?
Marcelinus Onyejiji frequently sees patients for Pain Management Consultation, Psychiatry Consultation, Psychotherapy, Psychotherapy Intake / Initial Visit, and Sleep Problems. You can see other visit reasons for Marcelinus Onyejiji on their profile.
What languages does Marcelinus Onyejiji speak?
Marcelinus Onyejiji speaks English.