EILEEN MARIE MONTOYA
NPI 1861106221
Nurse Practitioner - Family in Littleton, CO

Active since January 10, 2023PECOS EnrolledAccepts Medicare Assignment
5447 S LOUTHAN WAY, LITTLETON, CO 80120(303) 929-1824 Get Directions Write a Review

NPPES record last updated: March 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 18, 2025, Jan 10, 2023 (2 updates tracked since 2023).

About Eileen Marie Montoya NPPES

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

EILEEN MARIE MONTOYA (NPI 1861106221) is an individual family provider in Littleton, Colorado, licensed in Colorado (APN.0998123-NP) and active in the NPI registry since January 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fort Collins, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1861106221
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameEILEEN MARIE MONTOYA
Location Address5447 S LOUTHAN WAYLittleton, CO 80120-1244
Mailing Address5447 S Louthan WayLittleton, CO 80120-1244 · (303) 929-1824
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateJanuary 10, 2023
Last NPPES UpdateMarch 18, 20252 updates tracked since enumeration
NPPES CertifiedMarch 18, 2025
✔ NPI 1861106221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CO · APN.0998123-NP
Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License APN.0998123-NP (CO)
5447 S LOUTHAN WAY, Littleton, CO 80120

Secondary Practice Location 1

Location 11120 E Elizabeth St Ste G2Fort Collins, CO 80524-4044 · Phone (970) 493-9193

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Eileen Marie Montoya 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 ID5890144950
PECOS Enrollment IDI20231214001276
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 Reassignments

2

Medicare enrollment records show Eileen Montoya reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Addiction Medicine
3460 S FEDERAL BLVD
Englewood, CO 80110
  • Reassigned Medicare billing, Colorado enrollment
  • 36 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
3205 N ACADEMY BLVD, SUITE 130
Colorado Springs, CO 80917
  • Reassigned Medicare billing, Colorado enrollment
  • 355 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80120 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Eileen Montoya's NPI number?

The NPI number for Eileen Montoya is 1861106221. It was assigned to this individual provider in the NPPES registry on January 10, 2023.

Where is Eileen Montoya located?

Eileen Montoya practices at 5447 S Louthan Way, Littleton, CO 80120. The listed phone number is (303) 929-1824.

What is Eileen Montoya's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Eileen Montoya enrolled in Medicare?

Yes. Eileen Montoya 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 organizations bill Medicare for Eileen Montoya's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Montoya reassigns Medicare benefits to 2 organizations: Rocky Mountain Clinics LLC (Englewood, CO) and Peak Vista Community Health Centers (Colorado Springs, CO). Each 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 Eileen Montoya's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eileen Montoya accept?

Health plans from Select Health list Eileen Montoya 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.

When was this NPI record last updated?

The NPPES record for Eileen Montoya was last updated on March 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.