Olivia Lewis
Olivia Lewis is a Marriage & Family Therapist in San Francisco, CA, registered under NPI 1003624941.
Getting there
Here is what surrounds this office in San Francisco, based on OpenStreetMap data collected Oct 11, 2026. Parking is available about 501 ft away. The nearest transit stop is 360 ft away, served by 6th Avenue & Clement Street. If you arrive early, there is a coffee shop 479 ft away.
Getting here and what is nearby
Restaurant Clement BBQ 59 ft ~1 min
Restaurant Xiao Long Bao Restaurant 103 ft ~1 min
Parking 162 ft ~1 min
Restaurant Nakorn Thai 156 ft ~1 min
639 Clement Street, San Francisco 94118
Fr-Sa 11:00-22:00; Su-We 11:00-21:30
Transit Clement Street & 8th Avenue 187 ft ~1 min
Coffee Gourmet Dim Sum & Cafe 193 ft ~1 min
651 Clement Street
Coffee Pixlcat "Butter Mochi" Coffee 231 ft ~1 min
Grocery Smart & Final 204 ft ~1 min
Transit Clement Street & 6th Avenue 276 ft ~2 min
Convenience Food 24 Market 337 ft ~2 min
Mo-Su 08:00-01:00
Parking 318 ft ~2 min
Transit 6th Avenue & Clement Street 360 ft ~2 min
Grocery Richmond New May Wah Supermarket 374 ft ~2 min
Coffee Kowloon Tong Dessert Cafe 479 ft ~2 min
393 7th Avenue, San Francisco 94118
Mo-Th 17:00-01:00, Fr 17:00-02:00, Sa 15:00-02:00, Su 15:00-01:00
Parking 501 ft ~2 min
Convenience Modera Liquor & Wine 764 ft ~3 min
4401 Geary Boulevard
Mo-Fr 08:00-24:00; Sa 00:00-01:00,08:00-24:00; Su 00:00-01:00,09:00-23:00
Convenience T & L Market 773 ft ~3 min
Gas station 76 0.34 mi ~7 min
Gas station Chevron 0.41 mi ~9 min
Gas station Exxon 0.43 mi ~9 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 |
|---|---|---|
| 147945 | CA | Marriage & Family Therapist primary |
This provider holds licence 147945 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 | 1003624941 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 24, 2024 |
| Last updated | Feb 4, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
601 CLEMENT ST San Francisco, CA 94118 (415) 668-5955 Fax (415) 668-0246 |
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 | 2 | 4 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 2 | 8 | 9 | 8 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.