TrustNav Health
DashboardProvidersFindingsMethodologySearch

Powered by Evolyn — trust verification infrastructure

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.

← Back to provider directory

PETER LAMMENS

NPI 1619939402 · Orthopedic Surgery · Anthem

Provider Status Assessment
Verified Active

Strong multi-source corroboration of active practice across 10 carrier networks with confirmed Colorado DORA license.

Confidence: High
Evidence: 10017 items from 17 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

GOLDEN, 80401

Freshness: Unknown

✓

Network Status

Listed with 11 carriers

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

DORA License

Active

✓

Medicare

2,406 services

434 beneficiaries

$187,737.3 total payment

Specialty: Orthopedic Surgery

✓

Care Compare

Address matches NPPES

  • GOLDEN, 80401

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 GOLDEN
Colorado DORA License: License status: Active
Medicare Billing: 2,406 services, 434 beneficiaries
PECOS Enrollment: Medicare enrollment confirmed
Federal Exclusion Check: No federal exclusions found (OIG LEIE, SAM.gov)
Carrier Networks: Listed in 11 carrier networks
CMS Care Compare: Found in Care Compare with 1 location
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

10 networks across 5 carriers

Strong network presence across 10 carrier networks with corroborating federal activity signals.

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 Orthopedic Surgery providers statewideView →All providers in GOLDEN 80401View →All providers classified as Verified ActiveView →

Known Addresses

NPPESGOLDEN, 80401
Care CompareGOLDEN, 80401

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

1.00
Strong
reachability:0.60Moderate
network:1.00Strong
System Determination
Verified Active
Composite score: 0.858
Strong multi-source corroboration of active practice across 10 carrier networks with confirmed Colorado DORA license.
UnitedHealthcare UMRFederal TiC
View carrier →
UnitedHealthcare SurestFederal TiC
View carrier →
Cigna(1 network)
1 DOI 6C-3
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 →
Aetna(1 network)
1 DOI 6C-3
AetnaDOI 6C-3
View carrier →

Evidence

10017 items across 23 assertions from 17 sources

Connected Records

Colorado License
Expired
DORA
Practice Address
GOLDEN, 80401
cms_care_compare, NPPES
Carrier Network Listing
Listed in 10 carrier networks
TiC: Anthem Blue Cross Blue Shield, TiC: UnitedHealthcare Services, TiC: UnitedHealthcare Insurance, TiC: UnitedHealthcare (UMR), TiC: UnitedHealthcare Colorado, TiC: UnitedHealthcare (Surest), TiC: Cigna, TiC: Kaiser Permanente Insurance Company, TiC: Aetna, TiC: Kaiser Permanente
NPI Registration
Status: active
NPPES Deactivation
Order/Referring Eligibility
Record found
cms_order_refer
Medicare Enrollment
Enrolled
PECOS
Medicare Billing
2,406 services
cms_medicare
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 Shield9946 records ·weight 0.80 · Latest: Mar 14, 2026
Carrier Network ListingTrust: 0.80
↓TiC: Anthem Blue Cross Blue Shield8 records ·weight 0.80 · Latest: Mar 14, 2026
Colorado License StatusTrust: 0.95
↓DORA5 records ·weight 0.98 · Latest: Mar 13, 2026
Matched via: license_number
Colorado License StatusTrust: 0.95
↓DORAweight 0.98 · Mar 13, 2026
Matched via: license_number
Colorado License StatusTrust: 0.95
↓

Timeline

Mar 14, 2026Carrier listing: Anthem Blue Cross Blue Shield
Mar 13, 2026DORA license check: Expired
Mar 13, 2026DORA license check: Active
Mar 13, 2026DORA license check: Cancelled
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, 2026
DORA
5 records ·
weight 0.98 · Latest: Mar 6, 2026
Matched via: license_number
Colorado License StatusTrust: 0.95
↓DORAweight 0.98 · Mar 13, 2026
Matched via: license_number
Colorado License StatusTrust: 0.95
↓DORAweight 0.98 · Mar 13, 2026
Matched via: license_number
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)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: Cigna5 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
Carrier Network ListingTrust: 0.80
↓TiC: Aetna2 records ·weight 0.80 · Latest: Mar 11, 2026
Practice LocationTrust: 0.85
↓cms_care_compareweight 0.80 · Mar 6, 2026
↓NPPESweight 0.85 · Mar 5, 2026
Medicare Billing ActivityTrust: 0.90
↓cms_medicareweight 0.95 · 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
Order/Referring Eligibility: record found
Mar 11, 2026Carrier listing: Cigna
Mar 11, 2026Medicare enrollment: Approved
Mar 11, 2026Carrier listing: Kaiser Permanente Insurance Company
Mar 11, 2026Carrier listing: Aetna
Mar 6, 2026Practice address: GOLDEN, 80401
Mar 6, 2026Medicare billing: 2,406 services
Mar 5, 2026Carrier listing: Kaiser Permanente
Mar 5, 2026Provider Specialty: record found
Mar 5, 2026entity_type: record found

Showing 20 of 21 evidence events.