Mental Health Therapist

Ms. Sienna Monagan Lyon, LGPC

7945 Macarthur Blvd Ste 214, Cabin John, Maryland, 20818-1634

About Ms. Sienna Monagan Lyon

Ms. Sienna Monagan Lyon is a therapist based in Cabin John, Maryland who is specialized in Mental Health Counselor. Active license number of Ms. Sienna Monagan Lyon is LGP14303 for Mental Health Counselor in Maryland. Her current practice location is 7945 Macarthur Blvd Ste 214, Cabin John. Patients can reach her at 301-987-7284. Ms. Sienna Monagan Lyon is LGPC in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1730966938.

Ms. Sienna Monagan Lyon is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Ms. Sienna Monagan Lyon speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Ms. Sienna Monagan Lyon
Specialization Mental Health Counselor
Credentials LGPC
Gender Female
Practice Address: 7945 Macarthur Blvd Ste 214,
Cabin John, MD - 20818-1634

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1730966938
NPI Enumeration Date: 11 Sep, 2023
NPI Last Update On: 11 Sep, 2023

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Ms. Sienna Monagan Lyon are as mentioned below.

License NumberSpecializationStateStatus
LGP14303Mental Health Counselor MarylandPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Ms. Sienna Monagan Lyon
7945 Macarthur Blvd Ste 214,
Cabin John, MD - 20818-1634
Phone: 301-987-7284

Book an Appointment with Ms. Sienna Monagan Lyon

To schedule an appointment, contact Ms. Sienna Monagan Lyon at 7945 Macarthur Blvd Ste 214, Cabin John, Maryland or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Ms. Sienna Monagan Lyon:

Ms. Sienna Monagan Lyon is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Ms. Sienna Monagan Lyon is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Ms. Sienna Monagan Lyon practices at 7945 Macarthur Blvd Ste 214, Cabin John, Maryland, 20818-1634.

To schedule an appointment with Ms. Sienna Monagan Lyon, please contact the office at 301-987-7284.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.