Sara Schalk, OD
NPI 1275617300 · Optometrist · Appleton, WI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sara Schalk, OD is a Optometrist provider in Appleton, WI (NPI 1275617300).
Provider details
- NPI number
- 1275617300
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 2975 (WI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
393 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 154 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 102 | $85 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 33 | $24 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 27 | $53 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $120 |
| Exam of Visual Field With Extended Testing92083 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 122 | 39 |
| Cyclosporinebrand: Restasis | 111 | 49 |
| Prednisolone Acetate | 65 | 46 |
| Cyclosporine | 49 | 25 |
| Erythromycin Basebrand: Erythromycin | 39 | 15 |
| Ofloxacin | 36 | 25 |
| Lifitegrastbrand: Xiidra | 26 | 13 |
| Brimonidine Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$496 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2013-03-26
Frequently asked questions
- What is Sara Schalk's NPI number?
- Sara Schalk's National Provider Identifier (NPI) is 1275617300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Schalk's specialty?
- Sara Schalk is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Sara Schalk located?
- Sara Schalk's practice location on file with NPPES is 21 Park Pl, Appleton, WI 54914-8872.
- What is Sara Schalk's phone number?
- The practice phone number listed in the NPPES registry for Sara Schalk is (920) 739-4361.
- Does Sara Schalk accept Medicare?
- Sara Schalk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sara Schalk's NPI active?
- Yes — Sara Schalk's NPI (1275617300) is active in the NPPES registry as of the last update on 2013-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.