CHRISTINA ZARZA

NPI 1033465802 · Family Practice · Uhc Colorado

Provider Status Assessment

Verified Active

Strong multi-source corroboration of active practice across 8 carrier networks with confirmed Colorado DORA license.

Confidence: High

Evidence: 59 items from 15 sources

Signals: 7 supporting · 0 opposing

Resolution: All evidence sources corroborate active practice. 7 supporting signals with no contradictions across 8 evaluated sources.

Data Source Signals

✓

NPPES

WESTMINSTER, 80031

Freshness: Unknown

✓

Network Status

Listed with 8 carriers

uhc_colorado_co — in_network (commercial)
uhc_insurance_co — in_network (commercial)
uhc_services_co — in_network (commercial)
uhc_umr_co — in_network (commercial)
uhc_surest_co — in_network (commercial)
cigna_co — in_network (commercial)
kpic_co — in_network (commercial)
kaiser_co — in_network (commercial)

✓

DORA License

Active

✓

Medicare

385 services

122 beneficiaries

$30,105.23 total payment

Specialty: Family Practice

✗

Care Compare

Address mismatch with NPPES

LONGMONT, 80501
THORNTON, 80241
WESTMINSTER, 80023
WESTMINSTER, 80031
WOODLAND PARK, 80863

System Reasoning

Claim Under Evaluation

Provider is actively practicing and appropriately listed in carrier networks

Evidence Evaluated

FHIR Directory: No active FHIR endpoint despite carrier listings

NPPES Registry: Active NPI, registered in WESTMINSTER

Colorado DORA License: License status: Active

Medicare Billing: 385 services, 122 beneficiaries

PECOS Enrollment: Medicare enrollment confirmed

Federal Exclusion Check: No federal exclusions found (OIG LEIE, SAM.gov)

Carrier Networks: Listed in 8 carrier networks

CMS Care Compare: Found in Care Compare with 5 locations

Trust Evaluation

identity:0.75Strong

licensure:0.90Strong

activity:

Dimension Scores

Composite0.86

Identity0.75 — Moderate

Active NPI with specialty classification

Licensure0.90 — Strong

Active Colorado DORA license confirmed

Activity1.00 — Strong

Active Medicare billing confirmed

Reachability0.60 — Moderate

Single address source (NPPES)

Network1.00 — Strong

Listed in multiple carrier networks

Why is this provider classified as “verified active”?

Strong multi-source corroboration of active practice. All dimensions above 0.55 with evidence depth ≥ 5. Active license confirmed.

Carrier Network Listings

8 networks across 3 carriers

Strong network presence across 8 carrier networks with corroborating federal activity signals.

UnitedHealthcare(5 networks)

1 DOI 6C-34 Federal TiC

UnitedHealthcare of ColoradoDOI 6C-3

View carrier →

UnitedHealthcare InsuranceFederal TiC

View carrier →

UnitedHealthcare ServicesFederal TiC

View carrier →

UnitedHealthcare UMRFederal TiC

View carrier →

UnitedHealthcare SurestFederal TiC

View carrier →

Related Investigations

All providers in UnitedHealthcare of Colorado networkView →All Family Practice providers statewideView →All providers in WESTMINSTER 80031View →All providers classified as Verified ActiveView →

Known Addresses

NPPESWESTMINSTER, 80031

Care CompareLONGMONT, 80501

Care CompareTHORNTON, 80241

Care CompareWESTMINSTER, 80023

Care CompareWESTMINSTER, 80031

Care CompareWOODLAND PARK, 80863

Evidence

59 items across 21 assertions from 15 sources

Connected Records

Practice Address

WOODLAND PARK, 80863

cms_care_compare, NPPES

Colorado License

Active

DORA

Carrier Network Listing

Listed in 8 carrier networks

TiC: UnitedHealthcare Services, TiC: UnitedHealthcare Insurance, TiC: UnitedHealthcare (UMR), TiC: UnitedHealthcare Colorado, TiC: UnitedHealthcare (Surest), TiC: Cigna, TiC: Kaiser Permanente Insurance Company, TiC: Kaiser Permanente

NPI Registration

Status: active

NPPES Deactivation

Order/Referring Eligibility

Record found

cms_order_refer

Medicare Enrollment

Enrolled

PECOS

Medicare Billing

385 services

cms_medicare

entity_type

Record found

NPPES

Federal Exclusion Check

No exclusion found

OIG LEIE + SAM.gov

Evidence Lineage

Colorado License StatusTrust: 0.95

↓DORA4 records ·weight 0.95 · Latest: Mar 6, 2026

Matched via: primary

Colorado License StatusTrust: 0.95

↓DORA3 records ·weight 0.95 · Latest: Mar 13, 2026

Matched via: primary

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Services9 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Insurance4 records ·weight 0.80 · Latest: Mar 12, 2026

NPI Registration StatusTrust: 0.90

Timeline

Mar 13, 2026DORA license check: Active

Mar 13, 2026DORA license check: Expired

Mar 12, 2026Carrier listing: UnitedHealthcare Services

Mar 12, 2026Carrier listing: UnitedHealthcare Insurance

Mar 12, 2026NPPES record: active

Mar 12, 2026Carrier listing: UnitedHealthcare (UMR)

Mar 12, 2026Carrier listing: UnitedHealthcare Colorado

Mar 11, 2026Carrier listing: UnitedHealthcare (Surest)

Mar 11, 2026Order/Referring Eligibility: record found

Mar 11, 2026Carrier listing: Cigna

Mar 11, 2026

Evidence

Loading evidence lineage...

Disclaimer: This analysis uses publicly available federal and state data sources. It does not constitute a determination of provider status or network participation. Contact the provider or health plan directly to verify current status.

PECOS Enrollment

Medicare enrolled

Order/Referring eligible: Yes

reachability:0.60Moderate

System Determination

Verified Active

Composite score: 0.858

Strong multi-source corroboration of active practice across 8 carrier networks with confirmed Colorado DORA license.

CignaDOI 6C-3

View carrier →

Kaiser Permanente(2 networks)

2 DOI 6C-3

Kaiser Permanente Insurance CoDOI 6C-3

View carrier →

Kaiser PermanenteDOI 6C-3

View carrier →

Evidence

59 items across 21 assertions from 15 sources

Connected Records

Practice Address

WOODLAND PARK, 80863

cms_care_compare, NPPES

Colorado License

Active

DORA

Carrier Network Listing

Listed in 8 carrier networks

NPI Registration

Status: active

NPPES Deactivation

Order/Referring Eligibility

Record found

cms_order_refer

Medicare Enrollment

Enrolled

PECOS

Medicare Billing

385 services

cms_medicare

entity_type

Record found

NPPES

Federal Exclusion Check

No exclusion found

OIG LEIE + SAM.gov

Evidence Lineage

Colorado License StatusTrust: 0.95

↓DORA4 records ·weight 0.95 · Latest: Mar 6, 2026

Matched via: primary

Colorado License StatusTrust: 0.95

↓DORA3 records ·weight 0.95 · Latest: Mar 13, 2026

Matched via: primary

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Services9 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Insurance4 records ·weight 0.80 · Latest: Mar 12, 2026

NPI Registration StatusTrust: 0.90

Timeline

Mar 13, 2026DORA license check: Active

Mar 13, 2026DORA license check: Expired

Mar 12, 2026Carrier listing: UnitedHealthcare Services

Mar 12, 2026Carrier listing: UnitedHealthcare Insurance

Mar 12, 2026NPPES record: active

Mar 12, 2026Carrier listing: UnitedHealthcare (UMR)

Mar 12, 2026Carrier listing: UnitedHealthcare Colorado

Mar 11, 2026Carrier listing: UnitedHealthcare (Surest)

Mar 11, 2026Order/Referring Eligibility: record found

Mar 11, 2026Carrier listing: Cigna

Mar 11, 2026

weight 0.85 · Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare (UMR)17 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Colorado2 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare (Surest)3 records ·weight 0.80 · Latest: Mar 11, 2026

Order/Referring EligibilityTrust: 0.95

↓cms_order_referweight 0.95 · Mar 11, 2026

Carrier Network ListingTrust: 0.80

↓TiC: Cigna3 records ·weight 0.80 · Latest: Mar 11, 2026

Medicare EnrollmentTrust: 0.95

↓PECOSweight 0.95 · Mar 11, 2026

Carrier Network ListingTrust: 0.80

↓TiC: Kaiser Permanente Insurance Companyweight 0.80 · Mar 11, 2026

Practice LocationTrust: 0.80

↓cms_care_compareweight 0.80 · Mar 6, 2026

Practice LocationTrust: 0.85

↓cms_care_compareweight 0.80 · Mar 6, 2026

↓NPPESweight 0.85 · Mar 5, 2026

Practice LocationTrust: 0.80

↓cms_care_compareweight 0.80 · Mar 6, 2026

Practice LocationTrust: 0.80

↓cms_care_compareweight 0.80 · Mar 6, 2026

Practice LocationTrust: 0.80

↓cms_care_compareweight 0.80 · Mar 6, 2026

Medicare Billing ActivityTrust: 0.90

↓cms_medicareweight 0.85 · Mar 6, 2026

Carrier Network ListingTrust: 0.80

↓TiC: Kaiser Permanenteweight 0.80 · Mar 5, 2026

Provider SpecialtyTrust: 0.85

↓NPPESweight 0.85 · Mar 5, 2026

entity_typeTrust: 0.85

↓NPPESweight 0.85 · Mar 5, 2026

Medicare enrollment: Approved

Mar 11, 2026Carrier listing: Kaiser Permanente Insurance Company

Mar 6, 2026Practice address: WOODLAND PARK, 80863

Mar 6, 2026Practice address: WESTMINSTER, 80031

Mar 6, 2026Practice address: WESTMINSTER, 80023

Mar 6, 2026Practice address: THORNTON, 80241

Mar 6, 2026Practice address: LONGMONT, 80501

Mar 6, 2026Medicare billing: 385 services

Mar 5, 2026Carrier listing: Kaiser Permanente

Mar 5, 2026Provider Specialty: record found

Showing 20 of 22 evidence events.