JOHN WILLIAMS
NPI 1831286962
Pediatrics - Pediatric Infectious Diseases in Madison, WI
About John Williams NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN WILLIAMS (NPI 1831286962) is an individual pediatric infectious diseases provider in Madison, Wisconsin, licensed in Wisconsin (84587-20) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Virginia Commonwealth University, School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Williams is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADISON, WI 53792
MADISON, WI 53792
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Williams's NPI number?
The NPI number for John Williams is 1831286962. It was assigned to this individual provider in the NPPES registry on October 9, 2006.
Where is John Williams located?
John Williams practices at 1675 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-0946.
What is John Williams's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.
Is John Williams enrolled in Medicare?
Yes. John Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does John Williams accept?
Health plans from HealthPartners and Medica list John Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Williams was last updated on February 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Williams · NPI 1831286962
Pediatric Infectious Diseases physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since October 9, 2006.
## Identity
- **NPI:** 1831286962 (Entity type: Individual)
- **Enumerated:** October 9, 2006
- **Primary specialty:** Pediatrics - Pediatric Infectious Diseases · taxonomy 2080P0208X
- **State license:** 84587-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1675 HIGHLAND AVE, Madison, WI 53792-0001
- **Phone:** (608) 263-0946
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** February 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1831286962) · Data from the CMS NPPES public registry.