Mary Lee, OTD
Mary Lee, OTD is an Occupational Therapist in Sioux Falls, SD, registered under NPI 1003693854.
Getting there
Here is what surrounds this office in Sioux Falls, based on OpenStreetMap data collected Oct 16, 2026. Parking is available about 311 ft away.
Getting here and what is nearby
Parking 29 ft ~1 min
Parking 266 ft ~2 min
Parking 311 ft ~2 min
Restaurant Honey Baked Ham 481 ft ~2 min
Convenience Get-N-Go 688 ft ~3 min
Restaurant Taco John's 715 ft ~3 min
5100 South Louise Avenue
Mo-Fr 06:30-20:00; Su-Sa 07:30-20:00
Gas station BP 785 ft ~3 min
Restaurant Panchero's 898 ft ~4 min
Grocery Science Nutrition 0.23 mi ~5 min
5109 South Louise Avenue, Sioux Falls 57108
Hotel Hilton Garden Inn Sioux Falls South 0.32 mi ~7 min
Convenience Casey's General Store 0.38 mi ~8 min
Gas station Casey's General Store 0.38 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Occupational Therapist covers
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life. NUCC Health Care Provider Taxonomy, code 225X00000X
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 | 1003693854 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 13, 2023 |
| Last updated | Sep 13, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | OTD |
| Practice address |
5020 S TENNIS LN STE 6 Sioux Falls, SD 57108 (605) 409-9533 |
| Mailing address |
7303 S CLIFF AVE Sioux Falls, SD 57108 |
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 | 6 | 9 | 3 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 9 | 6 | 8 | 1 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.