Steven Will, MFTI
Steven Will, MFTI is a Marriage & Family Therapist in Costa Mesa, CA, registered under NPI 1003244906. 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 Costa Mesa, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.39 mi away. There is EV charging 916 ft from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 748 ft away, served by Red Hill-Baker.
Getting here and what is nearby
Transit Red Hill-Paularino 329 ft ~2 min
Transit Red Hill-Baker 427 ft ~2 min
Restaurant Panini Kabob Grill 495 ft ~2 min
3159-A Red Hill Avenue, Costa Mesa 92626
Mo-Sa 07:00-21:30
Transit Red Hill-Baker 748 ft ~3 min
EV charging ChargePoint 844 ft ~4 min
EV charging ChargePoint 916 ft ~4 min
Parking 0.31 mi ~7 min
Gas station Arco 0.35 mi ~8 min
Parking 0.36 mi ~8 min
Convenience ampm 0.37 mi ~8 min
Gas station Arco 0.37 mi ~8 min
Parking 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 |
|---|---|---|
| 73893 | CA | Marriage & Family Therapist primary |
This provider holds licence 73893 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
- Practitioner - Marriage And Family Therapist
- PAC ID
- 5698218642
- Enrollment ID
- I20240618002618
Medicare enrolment is recorded as approved under the provider type Practitioner - Marriage And Family Therapist. 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 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 | 1003244906 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 31, 2013 |
| Last updated | Oct 31, 2013 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MFTI |
| Practice address |
3152 RED HILL AVE SUITE 100 Costa Mesa, CA 92626 (714) 881-0427 |
| Mailing address |
1702 FLORIDA ST #1 Huntington Beach, CA 92648 |
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 | 4 | 4 | 9 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 4 | 8 | 9 | 0 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.