Ivanova Guillen, PTA
Ivanova Guillen, PTA is a Physical Therapy Assistant in San Diego, CA, registered under NPI 1003206970. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in San Diego, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 0.47 mi away at Chesapeake Parking Structure. There is EV charging 0.32 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 173 ft away. A pharmacy sits 0.44 mi from the entrance (San Diego Compounding Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.32 mi away.
Getting here and what is nearby
Transit Clairemont Mesa Boulevard & Complex Drive 110 ft ~1 min
Transit Clairemont Mesa Boulevard & Complex Drive 136 ft ~1 min
Transit 173 ft ~1 min
Restaurant Panera Bread 158 ft ~1 min
9025 Clairemont Mesa Boulevard, San Diego 92123
Mo-Sa 06:00-21:00; Su 07:00-21:00
Restaurant Tahini 188 ft ~1 min
9119 Clairemont Mesa Boulevard, San Diego 92123
Mo-Sa 11:00-20:00; Su 11:00-19:00
Convenience 7-Eleven 650 ft ~3 min
9187 Clairemont Mesa Boulevard, San Diego 92123-1209
Restaurant Village Indian Cuisine 618 ft ~3 min
9187 Clairemont Mesa Boulevard, San Diego 92123
Mo-Th, Su 11:00-21:00; Fr-Sa 11:00-21:30
Coffee Starbucks 826 ft ~4 min
Parking 950 ft ~4 min
Convenience Refill Pantry SD 0.24 mi ~5 min
8878 Clairemont Mesa Boulevard, San Diego 92123
Mo,Tu,We,Fr,Sa 10:00-16:00
Convenience ampm 0.26 mi ~6 min
Gas station Arco 0.26 mi ~6 min
8820 Clairemont Mesa Boulevard, San Diego 92123
Coffee The Coffee Bean & Tea Leaf 0.29 mi ~6 min
Coffee Boba Religion 0.32 mi ~7 min
EV charging Tesla Supercharger 0.32 mi ~7 min
Parking Farnham Parking Structure 0.33 mi ~7 min
5515 Farnham Street, San Diego 92123
Gas station EBK Fuel 0.42 mi ~9 min
5345 Kearny Villa Road, San Diego 92123
Pharmacy San Diego Compounding Pharmacy 0.44 mi ~9 min
5395 Ruffin Road, San Diego 92123
Parking Chesapeake Parking Structure 0.47 mi ~10 min
5610 Chesapeake Drive, San Diego 92123
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 |
|---|---|---|
| AT10270 | CA | Physical Therapy Assistant primary |
This provider holds licence AT10270 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 Physical Therapy Assistant covers
(1)Physical therapist assistants are skilled health care providers who are graduates of a physical therapist assistant associate degree program accredited by an agency recognized by the Secretary of the U.S. Department of Education or Council on Postsecondary Accreditation, who assists the physical therapist in providing physical therapy. The supervising physical therapist is directly responsible for the actions of the physical therapist assistant. The PTA performs physical therapy procedures and related tasks that have been selected and delegated by the supervising physical therapist. Duties of the PTA include assisting the physical therapist in implementing treatment programs, training patients in exercised and activities of daily living, conducting treatments, and reporting to the physical therapist on the patient's responses. In addition to direct patient care, the PTA may also perform such functions as patient transport, and clinic or equipment preparation and maintenance. Currently more than half of all states require PTAs to be licensed, registered or certified. (2) An individual who works under the supervision of a physical therapist to assist him or her in providing physical therapy services. A physical therapy assistant may, for instance, help patients follow an appropriate exercise program that will increase their strength, endurance, coordination, and range of motion and train patients to perform activities of daily life. NUCC Health Care Provider Taxonomy, code 225200000X
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 | 1003206970 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 30, 2015 |
| Last updated | Jan 30, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PTA |
| Practice address |
9089 CLAIREMONT MESA BLVD SUITE 200 San Diego, CA 92123 (800) 787-6787 |
| Mailing address |
3541 VALLEY RD APT 3 Bonita, CA 91902 |
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 | 0 | 6 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 3 | 9 | 5 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.