DR. SANDRA MARIE LANDWEHR OD
NPI 1770544603
Optometrist in Green Bay, WI
About Dr. Sandra Marie Landwehr Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SANDRA MARIE LANDWEHR OD (NPI 1770544603) is an individual optometrist in Green Bay, Wisconsin, licensed in Wisconsin (2188) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Rice Lake.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 (PECOS)
Dr. Sandra Marie Landwehr Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
7Medicare enrollment records show Sandra Landwehr reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Keshena, WI 54135
- Reassigned Medicare billing, Wisconsin enrollment
- 25 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 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 54307 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Sandra Landwehr's NPI number?
The NPI number for Sandra Landwehr is 1770544603. It was assigned to this individual provider in the NPPES registry on March 30, 2006.
Where is Sandra Landwehr located?
Sandra Landwehr practices at PO Box 12645, Green Bay, WI 54307. The listed phone number is (920) 494-2121.
What is Sandra Landwehr's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Sandra Landwehr enrolled in Medicare?
Yes. Sandra Landwehr is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sandra Landwehr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Landwehr reassigns Medicare benefits to 7 organizations: Menominee Indian Tribe Of Wisconsin (Keshena, WI), Beaver Dam Community Hospitals Inc (Waupun, WI), Mchs Hospitals, Inc. (Plover, WI), Marshfield Clinic Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI) and 2 more organizations, listed in the Medicare section above. 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 Sandra Landwehr's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sandra Landwehr accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Sandra Landwehr 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 Sandra Landwehr was last updated on September 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Sandra Marie Landwehr, OD · NPI 1770544603
Optometrist provider in Green Bay, Wisconsin. Individual provider, active in the CMS NPPES registry since March 30, 2006.
## Identity
- **NPI:** 1770544603 (Entity type: Individual)
- **Enumerated:** March 30, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 2188 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** PO BOX 12645, Green Bay, WI 54307-2645
- **Phone:** (920) 494-2121 · **Fax:** (920) 221-0117
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Menominee Indian Tribe Of Wisconsin (NPI 1568404721, Keshena, WI); Beaver Dam Community Hospitals Inc (NPI 1629374780, Waupun, WI); Mchs Hospitals, Inc. (NPI 1386249894, Plover, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); and 2 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2024
- **Other identifiers:** Medicaid 38531700 (WI); Medicaid 1770544603 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1770544603) · Data from the CMS NPPES public registry.