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SIERRA DELEON
NPI 1306266739
Nurse Practitioner in Denver, CO

Active since April 24, 2014PECOS EnrolledAccepts Medicare Assignment
1800 WILLIAMS STREET SUITE 200, DENVER, CO 80218(303) 388-4876(303) 285-5097 Get Directions Write a Review

NPPES record last updated: April 28, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Sierra Deleon NPPES

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

SIERRA DELEON (NPI 1306266739) is an individual nurse practitioner in Denver, Colorado, licensed in Colorado (APN.0991142-NP) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1306266739
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameSIERRA DELEON
Location Address1800 WILLIAMS STREET SUITE 200Denver, CO 80218
Mailing Address7951 E Maplewood Ave Ste 300Greenwood Village, CO 80111-4726 · (303) 930-7800 · Fax (303) 930-7860
Phone(303) 388-4876
Fax(303) 285-5097
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateApril 24, 2014
Last NPPES UpdateApril 28, 2016
✔ NPI 1306266739 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CO · APN.0991142-NP
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
1800 WILLIAMS STREET SUITE 200, Denver, CO 80218
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Other Identifiers 2

Medicaid03234363CO
Medicare PIN437585YK91CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Sierra Deleon 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 ID941518831
PECOS Enrollment IDI20150925001066
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 Sierra Deleon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rocky Mountain Cancer Centers LLP
10 mi
Hematology & Oncology
7951 E MAPLEWOOD AVE STE 350
Greenwood Village, CO 80111
  • Reassigned Medicare billing, Colorado enrollment
  • 157 clinicians in this Medicare group
NPI 1518941186 (303) 930-7800

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 80218 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 Sierra Deleon's NPI number?

The NPI number for Sierra Deleon is 1306266739. It was assigned to this individual provider in the NPPES registry on April 24, 2014.

Where is Sierra Deleon located?

Sierra Deleon practices at 1800 Williams Street Suite 200, Denver, CO 80218. The listed phone number is (303) 388-4876.

What is Sierra Deleon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Sierra Deleon enrolled in Medicare?

Yes. Sierra Deleon 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 Sierra Deleon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sierra Deleon reassigns Medicare benefits to Rocky Mountain Cancer Centers LLP (Greenwood Village, CO). 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 Sierra Deleon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sierra Deleon accept?

Health plans from UnitedHealthcare list Sierra Deleon 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 Sierra Deleon was last updated on April 28, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.