LAUREN HALLADAY PHD
NPI 1245958180
Psychologist in Newton, MA

Active since August 17, 2022PECOS Enrolled
55 CHAPEL ST STE 202, NEWTON, MA 02458(617) 658-9800 Get Directions Write a Review

NPPES record last updated: August 17, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lauren Halladay Phd NPPES

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

LAUREN HALLADAY PHD (NPI 1245958180) is an individual psychologist in Newton, Massachusetts and active in the NPI registry since August 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245958180
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameLAUREN HALLADAYCredential: PHD
Location Address55 CHAPEL ST STE 202Newton, MA 02458-1072
Mailing Address55 Chapel St Ste 202Newton, MA 02458-1072
Sole ProprietorNo
Enumeration DateAugust 17, 2022
NPPES CertifiedAugust 16, 2022
✔ NPI 1245958180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
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.
55 CHAPEL ST STE 202, Newton, MA 02458

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lauren Halladay Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Lauren Halladay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Developmental - Behavioral Pediatrics
601 ELMWOOD AVE, BOX 635
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 31 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

Speech-Language Pathologist
55 CHAPEL ST STE 202
NEWTON, MA 02458
Occupational Therapist (Pediatrics)
55 CHAPEL ST STE 202
NEWTON, MA 02458
Clinical Neuropsychologist
55 CHAPEL ST STE 202
NEWTON, MA 02458
Occupational Therapist
55 CHAPEL ST STE 202
NEWTON, MA 02458

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 Lauren Halladay's NPI number?

The NPI number for Lauren Halladay is 1245958180. It was assigned to this individual provider in the NPPES registry on August 17, 2022.

Where is Lauren Halladay located?

Lauren Halladay practices at 55 Chapel St Ste 202, Newton, MA 02458. The listed phone number is (617) 658-9800.

What is Lauren Halladay's specialty?

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

Is Lauren Halladay enrolled in Medicare?

Yes. Lauren Halladay is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lauren Halladay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Halladay reassigns Medicare benefits to Pediatric Development Clinic (Rochester, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lauren Halladay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lauren Halladay was last updated on August 17, 2022. 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.