What is Mary O'Halloran's background?

Dr. O'Halloran has over 37 years of experience in psychology. Dr. O'Halloran operates an independent practice.

Does Mary O'Halloran take Medicare?

Dr. O'Halloran has a Medicare provider ID. Contact the office to confirm enrollment and other coverage.

How do I reach Mary O'Halloran's office?

1751 Hover St, Ste B4, Longmont, CO 80501. Phone: (720) 635-0755. Fax: (303) 223-3306. Virtual visits are also available for patients who prefer remote care.

How does a virtual visit with Dr. O'Halloran work?

Dr. O'Halloran's office sends a secure video link before your appointment. You can join from any device with a camera — phone, tablet, or laptop. Most visits take 15–30 minutes. See the telehealth section above for what to prepare.

Mary Sean O'Halloran, LP

Clinical Psychologist

(720) 635-0755Longmont, CO

Telehealth Available

NPI Active per CMS — Q2 2026

Telehealth Available NPI Active per CMS — Q2 2026

Patients across CO can see Mary O'Halloran, LP in person in Longmont or via virtual visit — no travel required. With 37+ years of experience, she has been practicing in the Longmont area.

1 of 57 Psychologist providers in COSee all Psychologist in Longmont|37+ years experience|NPI since 2021

Data updated 2021-09-20 on CMS NPPES

Contact & Location

Practice Location

1751 Hover St Ste B4, Longmont, CO 80501-7181

(720) 635-0755

Fax: (303) 223-3306

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

PsychologistBehavioral Health & Social Service Providers

Clinical psychologist

Taxonomy: 103T00000X

Virtual Psychology Care With Mary O'Halloran

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Mary O'Halloran for follow-ups, medication reviews, and ongoing care — no travel to Longmont required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Mary O'Halloran

NPI records show Dr. O'Halloran as active with telehealth listed in Longmont, CO. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (720) 635-0755.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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