Katy Schlossberg
Katy Schlossberg is a Pediatric Occupational Therapist in Irvine, CA, registered under NPI 1003221128. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Irvine, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 621 ft away. The nearest transit stop is 0.24 mi away, served by Barranca Parkway @ Creek Road Inbound. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Parking 112 ft ~1 min
Parking 333 ft ~2 min
Transit Barranca Parkway @ Lyon Inbound 353 ft ~2 min
Transit Barranca Parkway @ Lyon Outbound 409 ft ~2 min
Parking 621 ft ~3 min
Restaurant Carl's Jr & Green Burrito 676 ft ~3 min
Transit Barranca Parkway @ Creek Road Inbound 0.24 mi ~5 min
Grocery Ralphs 0.29 mi ~6 min
5345 Alton Parkway, Irvine 92604
Mo-Su 05:00-01:00
Coffee Starbucks 0.33 mi ~7 min
Restaurant Del Taco 0.34 mi ~7 min
Gas station Chevron 0.35 mi ~7 min
Restaurant McDonald's 0.38 mi ~8 min
5445 Alton Parkway, Irvine 92604
Mo-Su 07:00-20:00
Grocery Gelson's 0.50 mi ~10 min
5521 Alton Parkway, Irvine 92618
Su-Sa 07:00-22:00
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 |
|---|---|---|
| 15014 | CA | Pediatric Occupational Therapist primary |
| 15014 | CA | Occupational Therapist |
This provider holds licence 15014 issued in CA. 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 Pediatrics covers
Occupational therapists provide services to infants, toddlers and children who have or who are at risk for developmental delays or disabilities. Occupational therapy is concerned with a child's ability to participate in daily life activities or "occupations." Occupational therapists use their unique expertise to help children with social-emotional, physical, cognitive, communication, and adaptive behavioral challenges and to help children to be prepared for and perform important learning and school-related activities and to fulfill their rule as students. Through an understanding of the impact of disability, illness, and impairment on a child's development, plan, ability to learn new skills, and overall occupational performance, occupational therapists design interventions that promote healthy development, establish needed skills, and/or modify environments, all in support of participation in daily activities. NUCC Health Care Provider Taxonomy, code 225XP0200X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 225XP0200X | Pediatric Occupational Therapist Pediatrics | 15014 | CA | primary |
| 225X00000X | Occupational Therapist | 15014 | CA |
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 | 1003221128 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 26, 2014 |
| Last updated | Apr 15, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
5050 BARRANCA PKWY Irvine, CA 92604 (949) 936-5800 |
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 | 2 | 1 | 1 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 2 | 2 | 1 | 4 |
Sum = 42 · next multiple of 10 = 50 · check digit = 8 · actual last digit = 8
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.