Christopher Jefferson
Christopher Jefferson is a Marriage & Family Therapist in San Rafael, CA, registered under NPI 1003321746. 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 San Rafael, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 0.41 mi away at Mission Ave Park and Ride. There is EV charging 0.47 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 718 ft away, served by Lincoln Avenue & Paloma Avenue.
Getting here and what is nearby
Transit Lincoln Avenue & Linden Lane 219 ft ~1 min
Transit Lincoln Avenue & Linden Lane 530 ft ~3 min
Transit Lincoln Avenue & Paloma Avenue 718 ft ~3 min
Parking 898 ft ~4 min
Parking 901 ft ~4 min
Hotel Villa Inn 0.32 mi ~7 min
1600 Lincoln Avenue
Parking Mission Ave Park and Ride 0.41 mi ~9 min
Under Rte. 101 between Hetherton & Irwin at Mission Ave., SAN RAFAEL 94901
Hotel Marin Lodge 0.42 mi ~9 min
EV charging MCE Solar Charge 0.45 mi ~9 min
EV charging ChargePoint 0.47 mi ~10 min
Restaurant Lotus Cuisine of India 0.50 mi ~11 min
Restaurant Sushi to Dai for 0.51 mi ~11 min
816 4th Street
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 |
|---|---|---|
| 136907 | CA | Marriage & Family Therapist primary |
This provider holds licence 136907 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
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 | |
|---|---|---|---|---|
| 106H00000X | Marriage & Family Therapist | 136907 | CA | primary |
| 101YM0800X | Mental Health Counselor Mental Health | — | — |
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 | 1003321746 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 4, 2017 |
| Last updated | Jan 14, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
1466 LINCOLN AVE San Rafael, CA 94901 (805) 766-9426 |
| Mailing address |
380 ENCINAL ST STE 200 Santa Cruz, CA 95060 |
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 | 3 | 2 | 1 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 2 | 2 | 7 | 8 |
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.