DR. LILY AMELIA MATHISON PHD
NPI 1689270886
Psychologist in Fort Collins, CO

Active since December 11, 2020PECOS EnrolledAccepts Medicare Assignment
215 W OAK ST FL 4, FORT COLLINS, CO 80521(323) 590-1465 Get Directions Write a Review

NPPES record last updated: January 10, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Lily Amelia Mathison Phd NPPES

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

DR. LILY AMELIA MATHISON PHD (NPI 1689270886) is an individual psychologist in Fort Collins, Colorado, licensed in Colorado (PSY.6287) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS, is affiliated with Gallup Indian Medical Center, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1689270886
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. LILY AMELIA MATHISONCredential: PHD
Location Address215 W OAK ST FL 4Fort Collins, CO 80521-2734
Mailing Address215 W Oak St Fl 4Fort Collins, CO 80521-2734
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateDecember 11, 2020
Last NPPES UpdateJanuary 10, 2024
NPPES CertifiedJanuary 10, 2024
✔ NPI 1689270886 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 · PSY.6287
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.
215 W OAK ST FL 4, Fort Collins, CO 80521

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lily Amelia Mathison Phd 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 ID1951790484
PECOS Enrollment IDI20250221002191
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 Lily Mathison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Public Health, Federal
007 CHOOSGAI DRIVE
Tohatchi, NM 87325
  • Reassigned Medicare billing, Texas enrollment
  • 618 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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Gallup Indian Medical Center

Acute Care Hospitals · Gallup, NM
2/5 CMS rating
OwnershipGovernment - Federal
CMS Certification Number320061
Location516 E Nizhoni BlvdGallup, NM 87301 · Mckinley County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 10

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

Counselor (Professional)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Nurse Practitioner (Psychiatric/Mental Health)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Counselor (Professional)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Counselor (Professional)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Psychologist (Clinical)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Counselor (Professional)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Psychologist (Clinical)
215 W OAK ST FL 4
FORT COLLINS, CO 80521
Psychologist (Clinical)
215 W OAK ST FL 4
FORT COLLINS, CO 80521

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 Lily Mathison's NPI number?

The NPI number for Lily Mathison is 1689270886. It was assigned to this individual provider in the NPPES registry on December 11, 2020.

Where is Lily Mathison located?

Lily Mathison practices at 215 W Oak St Fl 4, Fort Collins, CO 80521. The listed phone number is (323) 590-1465.

What is Lily Mathison's specialty?

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

Is Lily Mathison enrolled in Medicare?

Yes. Lily Mathison 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.

Which organization bills Medicare for Lily Mathison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lily Mathison reassigns Medicare benefits to Dhhs, Phs, Naihs, Gallup Indian Medical Center (Tohatchi, NM). 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 Lily Mathison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lily Mathison accept?

Health plans from Cigna Healthcare list Lily Mathison as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Lily Mathison affiliated with any hospitals?

According to CMS data, Lily Mathison is affiliated with Gallup Indian Medical Center.

When was this NPI record last updated?

The NPPES record for Lily Mathison was last updated on January 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.