CHRISTIAN DIANA CASTILLO
NPI 1427515485
Nurse Practitioner - Family in Thornton, CO

Q: What is Christian Castillo's NPI number?

The NPI number for Christian Castillo is 1427515485. It was assigned to this individual provider in the NPPES registry on February 26, 2019.

Q: What is Christian Castillo's specialty?

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

Active since February 26, 2019PECOS EnrolledAccepts Medicare Assignment

8990 WASHINGTON ST, THORNTON, CO 80229(303) 650-4460(720) 565-4129 Get Directions Write a Review

NPPES record last updated: March 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 6, 2026, Aug 8, 2024, Jul 18, 2024 and 2 more (5 updates tracked since 2019).

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About Christian Diana Castillo NPPES

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

CHRISTIAN DIANA CASTILLO (NPI 1427515485) is an individual family provider in Thornton, Colorado, licensed in Colorado (0994249) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Westminster, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1427515485

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameCHRISTIAN DIANA CASTILLO

Location Address8990 WASHINGTON STThornton, CO 80229-4537

Mailing Address1735 S Public RdLafayette, CO 80026-7093 · (303) 650-4460 · Fax (720) 565-4131

Phone(303) 650-4460

Fax(720) 565-4129

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateFebruary 26, 2019

Last NPPES UpdateMarch 6, 20265 updates tracked since enumeration

NPPES CertifiedMarch 6, 2026

✔ NPI 1427515485 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

Licenses✔ Licensed in CO · 0994249✔ Licensed in CA · 95011250

8990 WASHINGTON ST, Thornton, CO 80229

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Secondary Practice Location 1

Location 112201 Pecos St Ste 500Westminster, CO 80234-3995 · Phone (303) 457-4497

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

Christian Diana Castillo 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 ID8426599176

PECOS Enrollment IDI20260323000781

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

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

Westmed Primary Care

4.4 mi

Family Medicine

12201 PECOS ST, SUITE 500
Westminster, CO 80234

Reassigned Medicare billing, Colorado enrollment
3 clinicians in this Medicare group

NPI 1154357176 (303) 457-4497

Alpine Medical Group Colorado PLLC

7.8 mi

Family Medicine

999 17TH ST STE 500
Denver, CO 80202

Reassigned Medicare billing, Colorado enrollment
90 clinicians in this Medicare group

NPI 1104501873 (720) 728-5170

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 80229 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 20

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

DIANE ASHER NP

Nurse Practitioner