MR. STEVEN P ZENKER MD
Accepted Insurance for NPI 1861485708
Pediatrics in Alton, IL

Active since August 25, 2005PECOS Enrolled
1 PROFESSIONAL DR STE 250, ALTON, IL 62002(618) 463-8636(618) 463-8640 Get Directions

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 8, 2025, Apr 18, 2024, Nov 1, 2021 (3 updates tracked since 2021).

Accepted Insurance & Health Plans Health Insurance Marketplace

Marketplace plan participation on file for this provider · 2026 plan year

MR. STEVEN P ZENKER MD, a pediatrics provider in Alton, IL, is listed as in-network for 22 health insurance plans from 2 insurance companies, led by UnitedHealthcare and Anthem Blue Cross and Blue Shield. This list is compiled from the CMS Health Insurance Marketplace public use files for the 2026 plan year.

Verify before you schedule: insurance networks change throughout the plan year. Confirm coverage directly with your insurance company or this practice’s billing office before booking an appointment.
2
Insurance Companies
22
Plan Options
2
Network Types
UnitedHealthcare
Largest Network · 13 plans
View plans
22 plans · 22 plan IDs · 2026 plan year

Anthem Blue Cross and Blue Shield

9 plans · Individual market · listed as Participating

Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives)

BronzePOSWisconsin
Plan ID79475WI0560003

Anthem Bronze Preferred/Broad HSA (+ Incentives)

BronzePOSWisconsin
Plan ID79475WI0560002

Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives)

BronzePOSWisconsin
Plan ID79475WI0560006

Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives)

GoldPOSWisconsin
Plan ID79475WI0560005

Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives)

GoldPOSWisconsin
Plan ID79475WI0560008

Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives)

BronzePOSWisconsin
Plan ID79475WI0560001

Anthem Silver Preferred/Broad 4000 ($0 PCP Visits + $0 Select Drugs + Incentives)

SilverPOSWisconsin
Plan ID79475WI0560009

Anthem Silver Preferred/Broad 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives)

SilverPOSWisconsin
Plan ID79475WI0560004

Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives)

SilverPOSWisconsin
Plan ID79475WI0560007

UnitedHealthcare

13 plans · Individual market · listed as Non Preferred

UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals)

BronzeEPOMissouri
Plan ID95426MO0410019

UHC Bronze Essential (No Referrals)

BronzeEPOMissouri
Plan ID95426MO0410021

UHC Bronze Standard (No Referrals)

BronzeEPOMissouri
Plan ID95426MO0410013

UHC Bronze Standard+ (Dental + Vision, No Referrals)

BronzeEPOMissouri
Plan ID95426MO0420005

UHC Gold Advantage ($0 Virtual Urgent Care, No Referrals)

GoldEPOMissouri
Plan ID95426MO0410020

UHC Gold Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals)

GoldEPOMissouri
Plan ID95426MO0420001

UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals)

GoldEPOMissouri
Plan ID95426MO0410018

UHC Gold Standard (No Referrals)

GoldEPOMissouri
Plan ID95426MO0410009

UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals)

SilverEPOMissouri
Plan ID95426MO0410016

UHC Silver Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals)

SilverEPOMissouri
Plan ID95426MO0420002

UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals)

SilverEPOMissouri
Plan ID95426MO0410006

UHC Silver Standard (No Referrals)

SilverEPOMissouri
Plan ID95426MO0410008

UHC Silver Standard+ (Dental + Vision, No Referrals)

SilverEPOMissouri
Plan ID95426MO0420004
No plans match your current filters. Clear filters to see the full list.

Coverage Questions FAQs

Common questions about this provider’s insurance participation, answered from the CMS Health Insurance Marketplace and Medicare enrollment files.

What insurance does MR. STEVEN P ZENKER MD accept?

Marketplace files for the 2026 plan year list MR. STEVEN P ZENKER MD as in-network for 22 plans from 2 insurance companies. The largest networks are UnitedHealthcare (13 plans), Anthem Blue Cross and Blue Shield (9 plans). The full list above shows each plan's metal level, network type, and plan IDs.

Is MR. STEVEN P ZENKER MD enrolled in Medicare?

The CMS enrollment files for this NPI show a PECOS enrollment record, which certifies the provider to order, refer, and prescribe for Medicare beneficiaries. The files do not currently show a Medicare assignment indicator; verify Medicare participation directly with the practice.

What network types does MR. STEVEN P ZENKER MD participate in?

The accepted plans include 13 EPO plans and 9 POS plans. EPO (Exclusive Provider Organization) plans cover network providers only, generally without referral requirements. POS (Point of Service) plans combine HMO-style referrals with partial out-of-network coverage.

Where does this insurance data come from and how current is it?

Plan participation is compiled from the official CMS Health Insurance Marketplace public use files for the 2026 plan year and refreshed as CMS publishes updated files. Networks change during the year, so always verify coverage with the insurance company or the provider's office before scheduling care.