DR. MARY SEAN O'HALLORAN LP
NPI 1477123511
Psychologist in Longmont, CO

Active since June 30, 2021PECOS EnrolledAccepts Medicare Assignment
1751 HOVER ST, STE B4, LONGMONT, CO 80501(720) 635-0755(303) 223-3306 Get Directions Write a Review

NPPES record last updated: September 20, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 20, 2021, Jun 30, 2021 (2 updates tracked since 2021).

About Dr. Mary Sean O'halloran Lp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARY SEAN O'HALLORAN LP (NPI 1477123511) is an individual psychologist in Longmont, Colorado, licensed in Colorado (2218) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1477123511
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARY SEAN O'HALLORANCredential: LP
Location Address1751 HOVER ST, STE B4Longmont, CO 80501-7181
Mailing Address525 Bowen StLongmont, CO 80501-5333 · (720) 635-0755
Fax(303) 223-3306
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateJune 30, 2021
Last NPPES UpdateSeptember 20, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 20, 2021
NPI 1477123511 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in CO · 2218
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
1751 HOVER ST, Longmont, CO 80501

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Sean O'halloran Lp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315344975
PECOS Enrollment IDI20210923002733
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dietitian, Registered
1751 HOVER ST, STE B4 #84
LONGMONT, CO 80501
Dentist
1751 HOVER ST, SUITE A-2
LONGMONT, CO 80501
Dietitian, Registered
1751 HOVER ST, STE B4 #84
LONGMONT, CO 80501
Physical Therapist
1751 HOVER ST
LONGMONT, CO 80501

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary O'halloran's NPI number?

The NPI number for Mary O'halloran is 1477123511. It was assigned to this individual provider in the NPPES registry on June 30, 2021.

Where is Mary O'halloran located?

Mary O'halloran practices at 1751 Hover St Ste B4, Longmont, CO 80501. The listed phone number is (720) 635-0755.

What is Mary O'halloran's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Mary O'halloran enrolled in Medicare?

Yes. Mary O'halloran is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mary O'halloran was last updated on September 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.