Joanna Greenwalt, PSY. S.
Joanna Greenwalt, PSY. S. is a School Psychologist in Grove City, OH, registered under NPI 1003230749.
Getting there
Here is what surrounds this office in Grove City, based on OpenStreetMap data collected Sep 12, 2026. No dedicated parking is recorded within walking distance, so allow extra time to find street parking. The nearest transit stop is 0.49 mi away, served by Parkway Centre Dr & Stringtown Rd. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Hotel Hilton Garden Inn Columbus/Grove City 0.23 mi ~5 min
Hotel Hampton Inn Columbus South 0.32 mi ~7 min
Hotel Red Roof Inn Columbus/Grove City 0.32 mi ~7 min
4055 Jackpot Road, Grove City 43123
Restaurant Five Guys 0.38 mi ~8 min
1790 Stringtown Road, Grove City 43123
Mo-Su 11:00-22:00
Restaurant Panera Bread 0.38 mi ~8 min
1786 Stringtown Road, Grove City 43123
Mo-Sa 06:00-21:00; Su 07:00-20:00
Restaurant Tropical Smoothie Cafe 0.39 mi ~8 min
Transit Stringtown Rd & Thistlewood Dr 0.43 mi ~9 min
Gas station BP 0.43 mi ~9 min
Convenience BP Shop 0.44 mi ~9 min
Coffee Starbucks 0.47 mi ~10 min
Transit Parkway Centre Dr & Stringtown Rd 0.49 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| OH1250125 | OH | School Psychologist primary |
This provider holds licence OH1250125 issued in OH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What School covers
A psychologist whose specialty is concerned with the science and practice of psychology with children, youth, families; learners of all ages; and the schooling process. The basic education and training of school psychologists prepares them to provide a range of psychological diagnosis, assessment, intervention, prevention, health promotion, and program development and evaluation services with a special focus on the developmental processes of children and youth within the context of schools, families and other systems. School psychologists are prepared to intervene at the individual and system level, and develop, implement, and evaluate preventive programs. In these efforts, they conduct ecologically valid assessments and intervene to promote positive learning environments within which children and youth from diverse backgrounds to ensure that all have equal access to effective educational and psychological services that promote healthy development NUCC Health Care Provider Taxonomy, code 103TS0200X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003230749 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 18, 2014 |
| Last updated | Feb 18, 2014 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PSY. S. |
| Practice address |
3805 MARLANE DR Grove City, OH 43123 (614) 801-3000 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 3 | 0 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 0 | 7 | 8 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.