JACOB WILLIAM LONSDALE M.D.
NPI 1053505958
Orthopaedic Surgery in Marshfield, WI
About Jacob William Lonsdale M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACOB WILLIAM LONSDALE M.D. (NPI 1053505958) is an individual orthopaedic surgery provider in Marshfield, Wisconsin, licensed in Wisconsin (52577) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and is a graduate of University Of Utah School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses 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
Jacob William Lonsdale 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 Reassignments
2Medicare enrollment records show Jacob Lonsdale reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 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
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.
Marshfield Medical Center
Acute Care Hospitals · Marshfield, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
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 Jacob Lonsdale's NPI number?
The NPI number for Jacob Lonsdale is 1053505958. It was assigned to this individual provider in the NPPES registry on September 4, 2007.
Where is Jacob Lonsdale located?
Jacob Lonsdale practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5202.
What is Jacob Lonsdale's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Jacob Lonsdale enrolled in Medicare?
Yes. Jacob Lonsdale 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 Jacob Lonsdale's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jacob Lonsdale reassigns Medicare benefits to 2 organizations: Marshfield Clinic Inc (Marshfield, WI) and Mchs Hospitals Inc (Marshfield, 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 Jacob Lonsdale's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jacob Lonsdale accept?
Health plans from Anthem Blue Cross and Blue Shield, HealthPartners, Sanford Health Plan and Security Health Plan list Jacob Lonsdale 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 Jacob Lonsdale affiliated with any hospitals?
According to CMS data, Jacob Lonsdale is affiliated with Marshfield Medical Center.
When was this NPI record last updated?
The NPPES record for Jacob Lonsdale was last updated on November 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Jacob William Lonsdale, M.D. · NPI 1053505958
Orthopaedic Surgery physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since September 4, 2007.
## Identity
- **NPI:** 1053505958 (Entity type: Individual)
- **Enumerated:** September 4, 2007
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 52577 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 N OAK AVE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5202 · **Fax:** (715) 387-5754
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Utah School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** November 3, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1053505958) · Data from the CMS NPPES public registry.