DR. CLAYTON LANHAM MD
NPI 1831848951
Family Medicine in Lake Geneva, WI
About Dr. Clayton Lanham Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLAYTON LANHAM MD (NPI 1831848951) is an individual family medicine provider in Lake Geneva, Wisconsin, licensed in Wisconsin (9901) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Elkhorn, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Clayton Lanham Md 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.
Medicare Billing Reassignments
3Medicare enrollment records show Clayton Lanham reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 clinicians in this Medicare group
Sheboygan, WI 53081
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Saint Francis, WI 53235
- Reassigned Medicare billing, Wisconsin enrollment
- 960 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53147 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LAKE GENEVA, WI 53147
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 Clayton Lanham's NPI number?
The NPI number for Clayton Lanham is 1831848951. It was assigned to this individual provider in the NPPES registry on March 23, 2022.
Where is Clayton Lanham located?
Clayton Lanham practices at 146 E Geneva Sq, Lake Geneva, WI 53147. The listed phone number is (262) 249-4660.
What is Clayton Lanham's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Clayton Lanham enrolled in Medicare?
Yes. Clayton Lanham 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.
Which organizations bill Medicare for Clayton Lanham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clayton Lanham reassigns Medicare benefits to 3 organizations: Aurora Advanced Healthcare, Inc. (Milwaukee, WI), Aurora Medical Group, Inc. (Sheboygan, WI) and Lakeshore Medical Clinic, LLC (Saint Francis, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Clayton Lanham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Clayton Lanham accept?
Health plans from CareSource (Common Ground Healthcare) and UnitedHealthcare list Clayton Lanham 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 Clayton Lanham was last updated on September 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Clayton Lanham, MD · NPI 1831848951
Family Medicine physician in Lake Geneva, Wisconsin. Individual provider, active in the CMS NPPES registry since March 23, 2022.
## Identity
- **NPI:** 1831848951 (Entity type: Individual)
- **Enumerated:** March 23, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 9901 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 146 E GENEVA SQ, Lake Geneva, WI 53147-9695
- **Phone:** (262) 249-4660
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Aurora Advanced Healthcare, Inc. (NPI 1265629133, Milwaukee, WI); Aurora Medical Group, Inc. (NPI 1174670244, Sheboygan, WI); Lakeshore Medical Clinic, LLC (NPI 1003861188, Saint Francis, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** September 12, 2025
- **Other identifiers:** Medicaid 100275199 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1831848951) · Data from the CMS NPPES public registry.