LESLEY ELIZABETH MAGNUSSEN NP-C
NPI 1538479225
Nurse Practitioner - Adult Health in Denver, CO

Active since October 14, 2010PECOS EnrolledAccepts Medicare Assignment
4545 E 9TH AVE STE 400, DENVER, CO 80220(303) 320-2929(303) 320-2767 Get Directions Write a Review

NPPES record last updated: February 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 24, 2024, Dec 1, 2022, Aug 8, 2019 (3 updates tracked since 2019).

About Lesley Elizabeth Magnussen Np-c NPPES

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

LESLEY ELIZABETH MAGNUSSEN NP-C (NPI 1538479225) is an individual adult health provider in Denver, Colorado, licensed in Colorado (APN.0998283-NP) and active in the NPI registry since October 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1538479225
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameLESLEY ELIZABETH MAGNUSSENCredential: NP-C
Location Address4545 E 9TH AVE STE 400Denver, CO 80220-3904
Mailing Address4545 E 9th Ave Ste 400Denver, CO 80220-3904 · (303) 320-2929 · Fax (303) 320-2767
Fax(303) 320-2767
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateOctober 14, 2010
Last NPPES UpdateFebruary 11, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 11, 2026
NPI 1538479225 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in CO · APN.0998283-NP
4545 E 9TH AVE STE 400, Denver, CO 80220

Other Names 1

Former Name (1)Lesley Elizabeth Martin

Other Identifiers 1

Medicaid9000195822CO

Accepted Insurance

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

Lesley Elizabeth Magnussen Np-c 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 ID5193960151
PECOS Enrollment IDI20250602000572
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80220 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.

Other Providers at the Same Location NPPES 7

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

Internal Medicine
4545 E 9TH AVE STE 400
DENVER, CO 80220
Internal Medicine
4545 E 9TH AVE STE 400
DENVER, CO 80220
Obstetrics & Gynecology
4545 E 9TH AVE STE 400
DENVER, CO 80220
Family Medicine
4545 E 9TH AVE STE 400
DENVER, CO 80220
Internal Medicine
4545 E 9TH AVE STE 400
DENVER, CO 80220
Internal Medicine (Endocrinology, Diabetes & Metabolism)
4545 E 9TH AVE STE 400
DENVER, CO 80220
Nurse Practitioner (Family)
4545 E 9TH AVE STE 400, GROUND RAVDIN
DENVER, CO 80220

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 Lesley Magnussen's NPI number?

The NPI number for Lesley Magnussen is 1538479225. It was assigned to this individual provider in the NPPES registry on October 14, 2010. The provider is also known as Lesley Elizabeth Martin.

Where is Lesley Magnussen located?

Lesley Magnussen practices at 4545 E 9th Ave Ste 400, Denver, CO 80220. The listed phone number is (303) 320-2929.

What is Lesley Magnussen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Lesley Magnussen enrolled in Medicare?

Yes. Lesley Magnussen 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.

What insurance does Lesley Magnussen accept?

Health plans from UnitedHealthcare list Lesley Magnussen 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 Lesley Magnussen was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.