Barbara Clark-arzuaga, COTA/L
Barbara Clark-arzuaga, COTA/L is an Occupational Therapy Assistant in Calumet City, IL, registered under NPI 1003150921.
Getting there
Here is what surrounds this office in Calumet City, based on OpenStreetMap data collected Sep 8, 2026. No dedicated parking is recorded within walking distance, so allow extra time to find street parking. The nearest transit stop is 0.24 mi away, served by Sibley & Clyde.
Getting here and what is nearby
Hotel Baymont Chicago/Calumet City 174 ft ~1 min
Transit Sibley & Madison 386 ft ~2 min
Convenience Mobil Mart 444 ft ~2 min
2074 Sibley Boulevard, Calumet City 60409
Gas station Mobil 443 ft ~2 min
2074 Sibley Boulevard, Calumet City 60409
Convenience Citgo 479 ft ~2 min
2013 Sibley Boulevard, Calumet City 60409
Gas station Citgo 494 ft ~2 min
2013 Sibley Boulevard, Calumet City 60409
Transit Sibley & Madison 572 ft ~3 min
Restaurant Subway 660 ft ~3 min
2030 Sibley Boulevard, Calumet City 60409
07:00-24:00
Restaurant McDonald's 723 ft ~3 min
Restaurant Popeyes 771 ft ~3 min
2004 Sibley Boulevard, Calumet City 60409
Mo-Fr 10:30-22:30; Sa 10:30-22:00; Su 10:30-22:30
Grocery Pete's Market 0.23 mi ~5 min
Transit Sibley & Clyde 0.24 mi ~5 min
Convenience Shell 0.26 mi ~6 min
1445 East Sibley Boulevard, Dolton 60419
Gas station Shell 0.27 mi ~6 min
1445 East Sibley Boulevard, Dolton 60419
Hotel Luxe Inn 0.43 mi ~9 min
1335 East Sibley Boulevard, Dolton 60419
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 |
|---|---|---|
| 057.001434 | IL | Occupational Therapy Assistant primary |
This provider holds licence 057.001434 issued in IL. 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 Occupational Therapy Assistant covers
An occupational therapy assistant is a person who has graduated from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, has successfully completed a period of supervised fieldwork experience required by the accredited occupational therapy assistant program, has passed a nationally recognized entry-level examination for occupational therapy assistants, and fulfills state requirements for licensure, certification, or registration. An occupational therapy assistant provides interventions under the supervision of an occupational therapist 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 therapy assistants 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 224Z00000X
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 | 1003150921 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 15, 2012 |
| Last updated | Nov 15, 2012 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | COTA/L |
| Practice address |
503 E END AVE Calumet City, IL 60409 (773) 289-2551 |
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 | 1 | 5 | 0 | 9 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 5 | 0 | 9 | 4 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.