Nicole Seitz, LMFT
Nicole Seitz, LMFT is a Marriage & Family Therapist in Orange, CA, registered under NPI 1003646720. 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 Orange, based on OpenStreetMap data collected Oct 12, 2026. Parking is available about 0.27 mi away. The nearest transit stop is 0.20 mi away, served by Taft-Glassell.
Getting here and what is nearby
Transit Glassell-Blueridge 229 ft ~1 min
Transit Glassell-Blueridge 525 ft ~2 min
Restaurant Paul's Place 960 ft ~4 min
125 East Taft Avenue, Orange 92865
Mo-Su 07:00-20:00
Parking 997 ft ~4 min
Transit Taft-Glassell 0.20 mi ~5 min
Convenience 7-Eleven 0.23 mi ~5 min
Parking 0.27 mi ~6 min
05:00-23:00
Gas station Orange Olive Gasoline 0.39 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
| Licence | State | Specialty |
|---|---|---|
| 44163 | CA | Marriage & Family Therapist primary |
This provider holds licence 44163 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 Marriage & Family Therapist covers
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups. NUCC Health Care Provider Taxonomy, code 106H00000X
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 | 1003646720 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 6, 2024 |
| Last updated | Aug 6, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LMFT |
| Practice address |
231 W BLUERIDGE AVE Orange, CA 92865 (714) 423-1519 |
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 | 4 | 6 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 4 | 3 | 7 | 4 |
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.