CornerstoneDPC
Direct Primary Care in Effingham, IL
Open since
July 5, 2021
- Facts checked September 23, 2026
- Telehealth
Membership
Child membership
Ages newborn to 18 years
$25/month each child
Adult membership
Ages 18 and up
$75/month
Couple with one child
$170/month
Couple with two or more children
$180/month
Other published prices
Enrollment fee
No enrollment fee
Cancellation fee
no cancellation fee
Re-enrollmeent fee
$200
Enrollment fee
No enrollment fee; re-enrollment fee is $200
Who it serves
Ages newborn to 18 years; ages 18 and up
Insurance
No third-party payors or insurance billing
Services
- Direct primary care
- Individual functional medicine appointments
- In-person office visits
- Telemedicine appointments
- Same-day appointments
- Lifestyle modifications
In-office labs
In-office lab draws with same–next day results at lower cost than an outside laboratory
Dispensary
Medications may be provided on-site
Telehealth, text and phone
Telemedicine appointments are available to patients if needed
Providers
Dr. Sieberg, certified physician with the Institute for Functional Medicine ·
physician
Scott Sieberg, MD ·
Family Medicine Physician ·
NPI 1659362150 · Opted out of Medicare, effective January 8, 2022
About CornerstoneDPC
CornerstoneDPC is a Pure DPC practice in Effingham, Illinois. The practice is located at 1901 South 4th St, Suite 27, Effingham, IL 62401. It serves patients from newborn through age 18 and adults ages 18 and up. The practice does not use third-party payors or bill insurance. Services include direct primary care, individual functional medicine appointments, in-person office visits, and telemedicine appointments. Other services include same-day appointments and lifestyle modifications. Medications may be provided on-site. Telemedicine appointments are available to patients when needed. Dr. Sieberg, a physician certified by the Institute for Functional Medicine, is listed as a provider. Scott Sieberg, MD, is listed as a provider with a Family Medicine Physician taxonomy.
Area
Effingham County, Illinois
The practice’s location is in a federally designated primary care Health Professional Shortage Area: ME - Effingham County (HRSA score 16 of 25, designated February 15, 2023).
Sources
- Services and Prices – Cornerstone DPC · cornerstonedpc.com/services · fetched September 23, 2026
- Cornerstone DPC – Direct Primary Care · cornerstonedpc.com · fetched September 23, 2026
- Contact – Cornerstone DPC · cornerstonedpc.com/contact · fetched September 23, 2026
- About – Cornerstone DPC · cornerstonedpc.com/about · fetched September 23, 2026
- NPPES NPI Registry · npiregistry.cms.hhs.gov/provider-view/1659362150 · fetched September 23, 2026
- CMS Medicare opt-out affidavits · data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits · fetched September 23, 2026
- US Census Bureau geocoder · geocoding.geo.census.gov/geocoder · fetched September 23, 2026
- HRSA shortage area data · data.hrsa.gov/tools/shortage-area/hpsa-find · fetched September 23, 2026
Each fact is shown only while it is recent: prices and hours for 180 days after the check, new-patient status for 60, everything else for a year.
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