Sandra Marie Landwehr, OD
- Part D claims, 2024
- 51
- Affiliated sites
- 5
- Medical groups
- 7
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703
- Practice phone
- Call (715) 387-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marshfield Medical Center - Wisconsin Rapids Campus
Multi-specialty group site · Marshfield, Wisconsin
Find Sandra Landwehr's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Sandra Marie Landwehr is an optometrist in Marshfield, Wisconsin
Sandra Landwehr practices at Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin.
Sandra Landwehr's NPI, 1770544603, was assigned on March 30, 2006. Sandra Landwehr graduated from Indiana University - School of Optometry in 1987. Sandra Landwehr holds Wisconsin license 2188.
- NPI
- 1770544603NPI Registry (opens in a new tab)
- NPI enumeration date
- March 30, 2006
- NPI status
- Active
- Practice phone
- (715) 387-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sandra Marie Landwehr practices at Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin
Sandra Landwehr's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus, at 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703. The practice phone is (715) 387-5511.
- Marshfield Medical Center - Wisconsin Rapids Campus1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703Phone(715) 387-5511
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sandra Marie Landwehr is affiliated with 5 sites of care and 7 medical groups
Sandra Landwehr's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin. The medical group on file is Marshfield Clinic Health System. Dmand AI also links Sandra Landwehr to 6 more medical groups and 4 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Sandra Marie Landwehr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sandra Landwehr practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshfield Medical Center - Wisconsin Rapids Campus | Available with a free account |
| +4 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Sandra Marie Landwehr is one of 946 optometrists in Wisconsin
Optometrist is Sandra Landwehr's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Sandra Landwehr is licensed in Wisconsin.
Specialties and state licenses
- Optometrist, WisconsinPrimary
Optometrists near Sandra Landwehr
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Sandra Marie Landwehr's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Sandra Landwehr's median patient age at 70, with 68% women.
Sandra Landwehr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Sandra Marie Landwehr wrote 51 Medicare Part D claims in 2024
In 2024, Sandra Landwehr wrote 51 Medicare Part D claims for 21 patients. 88% of them were for generic drugs.
Sandra Landwehr's Part D claims by kind of drug, 2024
- Generic45 claims88%
- Brand-name and other6 claims12%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sandra Marie Landwehr graduated from Indiana University - School of Optometry
Sandra Landwehr graduated from Indiana University - School of Optometry in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Sandra Marie Landwehr's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Sandra Marie Landwehr
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sandra Marie Landwehr's NPI number?
Sandra Marie Landwehr's NPI number is 1770544603. It was assigned on March 30, 2006, and it is active in the NPI Registry.
What does Sandra Marie Landwehr specialize in?
Sandra Marie Landwehr is an optometrist in Marshfield, Wisconsin. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Sandra Marie Landwehr practice?
Sandra Landwehr practices at 1000 N Oak Ave Attn Provider Certification Wwp, Marshfield, WI 54449-5703. Sandra Landwehr's primary practice is Marshfield Medical Center - Wisconsin Rapids Campus in Marshfield, Wisconsin. Dmand AI also links Sandra Landwehr to 6 medical groups and 4 group practices and clinics.
What is Sandra Marie Landwehr's office phone number?
The practice phone on file for Sandra Landwehr is (715) 387-5511.
What is Sandra Marie Landwehr's medical license number?
Sandra Landwehr holds Wisconsin license 2188.
What medical group is Sandra Marie Landwehr part of?
Sandra Landwehr is linked to Marshfield Clinic Health System. Dmand AI links Sandra Landwehr to 6 more medical groups.
Where did Sandra Marie Landwehr go to medical school?
Sandra Landwehr graduated from Indiana University - School of Optometry in 1987.
How long has Sandra Marie Landwehr been practicing?
Sandra Landwehr graduated from medical school in 1987, 39 years ago.
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