Luiza Portnoff, D.D.S
Luiza Portnoff, D.D.S is a provider specialising in Oral and Maxillofacial Surgery (Dentist) in Santa Clarita, CA, registered under NPI 1003235169.
Getting there
Here is what surrounds this office in Santa Clarita, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 568 ft away. The nearest transit stop is 0.48 mi away. A pharmacy sits 0.25 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 724 ft away.
Getting here and what is nearby
Restaurant Popeyes 234 ft ~1 min
Parking 379 ft ~2 min
Parking 468 ft ~2 min
Grocery Vallarta 479 ft ~2 min
Parking 568 ft ~3 min
Transit 693 ft ~3 min
Coffee Starbucks 724 ft ~3 min
Restaurant Domino's 879 ft ~4 min
23329 Lyons Avenue, Newhall 91321
Mo-Th 10:00-24:00; Fr-Sa 10:00-01:00; Su 10:00-24:00
Restaurant Carl's Jr. 981 ft ~4 min
Grocery Smart & Final 0.22 mi ~5 min
23640 Lyons Avenue, Newhall
Pharmacy CVS Pharmacy 0.25 mi ~5 min
Grocery ALDI 0.27 mi ~6 min
24860 Orchard Village Road, Santa Clarita 91355-3054
Mo-Su 09:00-21:00
Transit 0.48 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 |
|---|---|---|
| 63572 | CA | Oral and Maxillofacial Surgery (Dentist) primary |
This provider holds licence 63572 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Dentist
- PAC ID
- 5294086799
- Enrollment ID
- I20180921002773
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Dentist. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Oral and Maxillofacial Surgery covers
The specialty of dentistry which includes the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region. NUCC Health Care Provider Taxonomy, code 1223S0112X
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 | 1003235169 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 15, 2014 |
| Last updated | Jul 15, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | D.D.S |
| Practice address |
23453 LYONS AVE Santa Clarita, CA 91355 (661) 656-4545 |
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 | 5 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 1 | 1 | 3 |
Sum = 41 · next multiple of 10 = 50 · 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.