DR. TIMOTHY C LARSEN M.D.
NPI 1760417760
Anesthesiology in Appleton, WI
About Dr. Timothy C Larsen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY C LARSEN M.D. (NPI 1760417760) is an individual anesthesiology provider in Appleton, Wisconsin, licensed in Wisconsin (45036-20) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Medical Center - Appleton Inc, and is a graduate of University Of Wisconsin School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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. Timothy C Larsen M.d. 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 Timothy Larsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 144 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thedacare Regional Medical Center - Appleton Inc
Acute Care Hospitals · Appleton, WIOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
APPLETON, WI 54911
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 Timothy Larsen's NPI number?
The NPI number for Timothy Larsen is 1760417760. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Timothy Larsen located?
Timothy Larsen practices at 1818 N Meade St, Appleton, WI 54911. The listed phone number is (920) 731-4101.
What is Timothy Larsen's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Timothy Larsen enrolled in Medicare?
Yes. Timothy Larsen 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 Timothy Larsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Larsen reassigns Medicare benefits to Association Of Hospital Anesthesiologists Sc (Neenah, 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 Timothy Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Larsen accept?
Health plans from CareSource (Common Ground Healthcare) list Timothy Larsen 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.
Is Timothy Larsen affiliated with any hospitals?
According to CMS data, Timothy Larsen is affiliated with Thedacare Regional Medical Center - Appleton Inc.
When was this NPI record last updated?
The NPPES record for Timothy Larsen was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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. Timothy C Larsen, M.D. · NPI 1760417760
Anesthesiology physician in Appleton, Wisconsin. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1760417760 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 45036-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1818 N MEADE ST, Appleton, WI 54911-3454
- **Phone:** (920) 731-4101
## 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:** Association Of Hospital Anesthesiologists Sc (NPI 1720076474, Neenah, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Medicare UPIN H87364; Medicaid 34388900 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1760417760) · Data from the CMS NPPES public registry.