Quick answers
- Does Erika R. Vander Werf accept Medicare assignment?
- Yes. Medicare's clinician data says Erika R. Vander Werf accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Erika R. Vander Werf see?
- In 2024, CMS data shows 51 Original Medicare patients and 111 services for Erika R. Vander Werf. This counts Original Medicare only and measures volume, not quality.
- What is Erika R. Vander Werf's NPI number?
- 1124623624. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Erika R. Vander Werf, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 51 |
|---|---|
| Services billed to Medicare | 111 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Admn sarscov2 vacc 1 dose (90480)15 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)15 services
- Sarscv2 vac 30mcg trs-suc im (91320)14 services
- Influenza vaccine split virus, preservative free (90662)11 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)11 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure65%
- High cholesterol65%
- Arthritis53%
- Diabetes27%
- Depression27%
- Osteoporosis24%
Practice locations
Addresses where Erika R. Vander Werf is enrolled with Medicare (CMS data updated October 2, 2026).
- 5965 Hoover RdGrove City, OH 43123 (614) 317‑2188
- 7345 State Route 3Westerville, OH 43082 (614) 794‑5560
Group practices
Medicare enrollment lists Erika R. Vander Werf as a member of this group (CMS data updated October 2, 2026).
- The Little Clinic of Ohio LLC210 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grove City
Clinicians with the same Medicare primary specialty in Grove City, OH — not a recommendation.
Other clinicians in The Little Clinic of Ohio LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124623624 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians