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Data sources: NPPES · PECOS · Colorado DORA · OIG LEIE · SAM.gov · CMS Care Compare · Medicare Utilization · FHIR · Carrier Transparency in Coverage Filings

All findings derived exclusively from publicly available federal and state datasets.

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SHANNON ACKER

NPI 1235454125 · Physician · Anthem

Provider Status Assessment
Likely Active

Moderate evidence supports active practice with 8 carrier network listings and verified licensure.

Confidence: High
Evidence: 26748 items from 13 sources
Signals: 5 supporting · 0 opposing · 1 missing
Resolution: Moderate evidence supports active practice across 5 sources. No contradictory signals detected.

Data Source Signals

✓

NPPES

AURORA, 80045

Freshness: Unknown

✓

Network Status

Listed with 8 carriers

  • anthem_co — in_network (commercial)
  • 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)
  • kpic_co — in_network (commercial)
  • kaiser_co — in_network (commercial)
✓

DORA License

Active

✗

Medicare

Enrolled but no billing activity

—

Care Compare

No Care Compare data

✓

PECOS Enrollment

Medicare enrolled

Order/Referring eligible: Yes

System Reasoning

Claim Under Evaluation
Provider is actively practicing and appropriately listed in carrier networks
Evidence Evaluated
Medicare Billing: Enrolled in Medicare but no recent billing data
FHIR Directory: No active FHIR endpoint despite carrier listings
NPPES Registry: Active NPI, registered in AURORA
Colorado DORA License: License status: Active
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:

Dimension Scores

Composite0.73
Identity0.75 — Moderate

Active NPI with specialty classification

Licensure0.90 — Strong

Active Colorado DORA license confirmed

Activity0.50 — Moderate

No Medicare billing · No electronic endpoint

Reachability0.60 — Moderate

Single address source (NPPES)

Network1.00 — Strong

Listed in multiple carrier networks

Why is this provider classified as “likely active”?
Moderate evidence supports active practice. All dimensions above 0.40 with evidence depth ≥ 4. Licensure verified.

Carrier Network Listings

8 networks across 3 carriers

Anthem(1 network)
1 DOI 6C-3
Anthem Blue Cross Blue ShieldDOI 6C-3
View carrier →
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 →

Related Investigations

All providers in Anthem Blue Cross Blue Shield networkView →All Physician providers statewideView →All providers in AURORA 80045View →All providers classified as Likely ActiveView →

Known Addresses

NPPESAURORA, 80045

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.

0.50
Moderate
reachability:0.60Moderate
network:1.00Strong
System Determination
Likely Active
Composite score: 0.733
Moderate evidence supports active practice with 8 carrier network listings and verified licensure.
UnitedHealthcare UMR
Federal TiC
View carrier →
UnitedHealthcare SurestFederal TiC
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

26748 items across 16 assertions from 13 sources

Connected Records

Colorado License
Expired
DORA
Practice Address
AURORA, 80045
NPPES
Carrier Network Listing
Listed in 8 carrier networks
TiC: Anthem Blue Cross Blue Shield, TiC: UnitedHealthcare Services, TiC: UnitedHealthcare Insurance, TiC: UnitedHealthcare (UMR), TiC: UnitedHealthcare Colorado, TiC: UnitedHealthcare (Surest), 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
entity_type
Record found
NPPES
Federal Exclusion Check
No exclusion found
OIG LEIE + SAM.gov

Evidence Lineage

Carrier Network ListingTrust: 0.80
↓TiC: Anthem Blue Cross Blue Shield26667 records ·weight 0.80 · Latest: Mar 14, 2026
Colorado License StatusTrust: 0.95
↓DORA3 records ·weight 0.60 · Latest: Mar 13, 2026
Matched via: primary
Colorado License StatusTrust: 0.95
↓DORA5 records ·weight 0.98 · Latest: Mar 6, 2026
Matched via: license_number
Carrier Network ListingTrust: 0.80
↓TiC: UnitedHealthcare Services16 records ·weight 0.80 · Latest: Mar 12, 2026
Carrier Network ListingTrust: 0.80

Timeline

Mar 14, 2026Carrier listing: Anthem Blue Cross Blue Shield
Mar 13, 2026DORA license check: Expired
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, 2026
↓
TiC: UnitedHealthcare Insurance
8 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)30 records ·weight 0.80 · Latest: Mar 12, 2026
Carrier Network ListingTrust: 0.80
↓TiC: UnitedHealthcare Colorado4 records ·weight 0.80 · Latest: Mar 12, 2026
Carrier Network ListingTrust: 0.80
↓TiC: UnitedHealthcare (Surest)6 records ·weight 0.80 · Latest: Mar 11, 2026
Order/Referring EligibilityTrust: 0.95
↓cms_order_referweight 0.95 · Mar 11, 2026
Medicare EnrollmentTrust: 0.95
↓PECOSweight 0.95 · Mar 11, 2026
Carrier Network ListingTrust: 0.80
↓TiC: Kaiser Permanente Insurance Company2 records ·weight 0.80 · Latest: Mar 11, 2026
Carrier Network ListingTrust: 0.80
↓TiC: Kaiser Permanenteweight 0.80 · Mar 5, 2026
Practice LocationTrust: 0.85
↓NPPESweight 0.85 · 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 5, 2026Carrier listing: Kaiser Permanente
Mar 5, 2026Practice address: AURORA, 80045
Mar 5, 2026Provider Specialty: record found
Mar 5, 2026entity_type: record found