# William L Johnson

Source: https://ourhealthnetwork.com/doctor/william-johnson-1669476495
NPI: 1669476495
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

William L Johnson is a allergy/immunology based in Saint Louis, MO practicing at American Multispecialty Group Inc with NPI 1669476495.

## Profile

- Primary specialty: Allergy/Immunology
- Secondary specialties: PEDIATRIC MEDICINE
- Gender: Male
- Medical school: UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
- Graduation year: 1981
- NPI: 1669476495 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1669476495))

## Practice and contact

- Practice name: American Multispecialty Group Inc
- Address: 12818 Tesson Ferry Rd, Suite 205, Saint Louis, MO, 631282945
- Phone: (314) 421-0663
- Group practice size: 150 members

## CMS quality measures (MIPS)

- Overall MIPS final score: 62.29/100
- Quality category score: 19.40/100
- Promoting Interoperability score: 82.00/100
- Improvement Activities score: 40.00/100
- Cost category score: 69.8876/100

Source: CMS Quality Payment Program. MIPS scores reflect Medicare provider performance on quality, cost, and care improvement measures.

## Insurance accepted (3 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 19 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 8 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers William L Johnson, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1669476495).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 1 disclosed payment from medical industry sources totaling approximately $175.

Largest disclosed payer: AIMMUNE THERAPEUTICS, INC. ($175 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Allergy/Immunology doctors in SAINT LOUIS, MO](https://ourhealthnetwork.com/allergy-immunology/mo/saint-louis)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1669476495)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)