ANN SHIMKUS

NPI 1457318172 · Physician Assistant · Uhc Services

Provider Status Assessment

Verified Active

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

Confidence: High

Evidence: 52 items from 14 sources

Signals: 6 supporting · 0 opposing · 1 missing

Resolution: All evidence sources corroborate active practice. 6 supporting signals with no contradictions across 8 evaluated sources.

Data Source Signals

✓

NPPES

WHEAT RIDGE, 80033

Freshness: Unknown

✓

Network Status

Listed with 8 carriers

uhc_services_co — in_network (commercial)
uhc_colorado_co — in_network (commercial)
uhc_insurance_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

155 services

136 beneficiaries

$15,289.83 total payment

Specialty: Physician Assistant

—

Care Compare

No Care Compare data

✓

PECOS Enrollment

Medicare enrolled

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 WHEAT RIDGE

Colorado DORA License: License status: Active

Medicare Billing: 155 services, 136 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: Not found in CMS Care Compare

Trust Evaluation

identity:0.75Strong

licensure:0.90Strong

activity:1.00

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 ServicesFederal TiC

View carrier →

UnitedHealthcare of ColoradoDOI 6C-3

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UnitedHealthcare InsuranceFederal TiC

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UnitedHealthcare UMRFederal TiC

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UnitedHealthcare SurestFederal TiC

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Related Investigations

All providers in UnitedHealthcare Services networkView →All Physician Assistant providers statewideView →All providers in WHEAT RIDGE 80033View →All providers classified as Verified ActiveView →

Known Addresses

NPPESWHEAT RIDGE, 80033

Evidence

52 items across 16 assertions from 14 sources

Connected Records

Practice Address

WHEAT RIDGE, 80033

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

155 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

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

Matched via: primary

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Services8 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Insurance3 records ·weight 0.80 · Latest: Mar 12, 2026

NPI Registration StatusTrust: 0.90

↓NPPES Deactivationweight 0.85 · Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare (UMR)

Timeline

Mar 13, 2026DORA license check: Active

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, 2026Medicare enrollment: Approved

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.

Evidence

52 items across 16 assertions from 14 sources

Connected Records

Practice Address

WHEAT RIDGE, 80033

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

155 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

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

Matched via: primary

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Services8 records ·weight 0.80 · Latest: Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare Insurance3 records ·weight 0.80 · Latest: Mar 12, 2026

NPI Registration StatusTrust: 0.90

↓NPPES Deactivationweight 0.85 · Mar 12, 2026

Carrier Network ListingTrust: 0.80

↓TiC: UnitedHealthcare (UMR)

Timeline

Mar 13, 2026DORA license check: Active

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, 2026Medicare enrollment: Approved

Mar 11, 2026