Professional Therapist

Mark Jonathan Oldenburg, LPC

4509 Arthur Rd, Slinger, Wisconsin, 53086-9603

About Mark Jonathan Oldenburg

Mark Jonathan Oldenburg is a therapist based in Slinger, Wisconsin who is specialized in Professional Counselor. Active license number of Mark Jonathan Oldenburg is 12445 for Professional Counselor in Wisconsin. His current practice location is 4509 Arthur Rd, Slinger. Patients can reach him at 414-966-7136. Mark Jonathan Oldenburg is LPC in Professional Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1275261935.

Mark Jonathan Oldenburg is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. He uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Practice Information

Mark Jonathan Oldenburg 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 Mark Jonathan Oldenburg
Specialization Professional Counselor
Credentials LPC
Gender Male
Practice Address: 4509 Arthur Rd,
Slinger, WI - 53086-9603

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 Number1275261935
NPI Enumeration Date: 10 Aug, 2022
NPI Last Update On: 03 Sep, 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 Mark Jonathan Oldenburg are as mentioned below.

License NumberSpecializationStateStatus
12445Professional Counselor WisconsinPrimary

Mailing Address

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

Mark Jonathan Oldenburg
900 Fox Creek Dr Apt 5,
Watertown, WI - 53098-1314
Phone: 262-366-7948

Book an Appointment with Mark Jonathan Oldenburg

To schedule an appointment, contact Mark Jonathan Oldenburg at 4509 Arthur Rd, Slinger, Wisconsin or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mark Jonathan Oldenburg:

Mark Jonathan Oldenburg is a therapist specializing in Professional Counselor. He is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. He uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Yes, Mark Jonathan Oldenburg is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mark Jonathan Oldenburg practices at 4509 Arthur Rd, Slinger, Wisconsin, 53086-9603.

To schedule an appointment with Mark Jonathan Oldenburg, please contact the office at 414-966-7136.

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