Addiction Therapist

Mrs. Holly Elizabeth Grennan, SUDPT

327 Okanogan Ave, Wenatchee, Washington, 98801

About Mrs. Holly Elizabeth Grennan

Mrs. Holly Elizabeth Grennan is a therapist based in Wenatchee, Washington who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Mrs. Holly Elizabeth Grennan is CO70070799 for Addiction (Substance Use Disorder) Counselor in Washington. Her current practice location is 327 Okanogan Ave, Wenatchee. Patients can reach her at 509-662-9673 or can fax her at 509-662-9441. Mrs. Holly Elizabeth Grennan is SUDPT in Addiction (Substance Use Disorder) Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1235085341.

Mrs. Holly Elizabeth Grennan is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Practice Information

Mrs. Holly Elizabeth Grennan 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 Mrs. Holly Elizabeth Grennan
Specialization Addiction (Substance Use Disorder) Counselor
Credentials SUDPT
Gender Female
Practice Address: 327 Okanogan Ave,
Wenatchee, WA - 98801
Fax 509-662-9441

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 Number1235085341
NPI Enumeration Date: 10 Mar, 2026
NPI Last Update On: 10 Mar, 2026

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 Mrs. Holly Elizabeth Grennan are as mentioned below.

License NumberSpecializationStateStatus
CO70070799Addiction (Substance Use Disorder) Counselor WashingtonPrimary

Mailing Address

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

Mrs. Holly Elizabeth Grennan
P.o. Box 950, Wenatchee Wa 98807, 327 Okanogan Ave
Wenatchee, WA - 98801
Phone: 509-662-9673
Fax: 509-662-9441

Book an Appointment with Mrs. Holly Elizabeth Grennan

To schedule an appointment, contact Mrs. Holly Elizabeth Grennan at 327 Okanogan Ave, Wenatchee, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mrs. Holly Elizabeth Grennan:

Mrs. Holly Elizabeth Grennan is a therapist specializing in Addiction (Substance Use Disorder) Counselor. She is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Yes, Mrs. Holly Elizabeth Grennan is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mrs. Holly Elizabeth Grennan practices at 327 Okanogan Ave, Wenatchee, Washington, 98801.

To schedule an appointment with Mrs. Holly Elizabeth Grennan, please contact the office at 509-662-9673.

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