THOMAS J COX MD
NPI 1851020994
Pediatrics in Oshkosh, WI
About Thomas J Cox Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS J COX MD (NPI 1851020994) is an individual pediatrics provider in Oshkosh, Wisconsin, licensed in Wisconsin (85774) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical Branch At Galveston (2022).
NPPES Registry Identity
Specialties & Licenses
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
Thomas J Cox 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 Reassignment
Medicare enrollment records show Thomas Cox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Menasha, WI 54952
- Reassigned Medicare billing, Wisconsin enrollment
- 988 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 54902 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Thomas Cox's NPI number?
The NPI number for Thomas Cox is 1851020994. It was assigned to this individual provider in the NPPES registry on June 6, 2022.
Where is Thomas Cox located?
Thomas Cox practices at 250 W 6th Ave, Oshkosh, WI 54902. The listed phone number is (920) 727-9982.
What is Thomas Cox's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Thomas Cox enrolled in Medicare?
Yes. Thomas Cox 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 organization bills Medicare for Thomas Cox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Cox reassigns Medicare benefits to Thedacare, Incorporated (Menasha, WI). The 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 Thomas Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Cox accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 2 other insurers list Thomas Cox 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 Thomas Cox was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Thomas J Cox, MD · NPI 1851020994
Pediatrics physician in Oshkosh, Wisconsin. Individual provider, active in the CMS NPPES registry since June 6, 2022.
## Identity
- **NPI:** 1851020994 (Entity type: Individual)
- **Enumerated:** June 6, 2022
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 85774 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 W 6TH AVE, Oshkosh, WI 54902-5910
- **Phone:** (920) 727-9982 · **Fax:** (920) 727-9983
## 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:** Thedacare, Incorporated (NPI 1306959515, Menasha, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 2022
## Record status
- **NPPES last updated:** June 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1851020994) · Data from the CMS NPPES public registry.