Lifan Koerner, AMFT
Lifan Koerner, AMFT is a Marriage & Family Therapist in Lafayette, CA, registered under NPI 1003514704.
Getting there
Here is what surrounds this office in Lafayette, based on OpenStreetMap data collected Oct 2, 2026. Parking is available about 514 ft away. The nearest transit stop is 385 ft away, served by Mount Diablo Boulevard & Moraga Road. If you arrive early, there is a coffee shop 699 ft away.
Getting here and what is nearby
Transit Moraga Road & Mount Diablo Boulevard 85 ft ~1 min
Parking 110 ft ~1 min
Restaurant Local Food Adventures 249 ft ~1 min
6114 La Salle Avenue, Oakland 94611
Mo-Sa 09:00-18:00; Su 09:00-16:00
Transit Mount Diablo Boulevard & Moraga Road 343 ft ~2 min
Gas station 76 319 ft ~2 min
Transit Mount Diablo Boulevard & Moraga Road 385 ft ~2 min
Parking 344 ft ~2 min
Coffee Starbucks 473 ft ~2 min
Restaurant Tutu's 457 ft ~2 min
Parking 514 ft ~2 min
Coffee Lafayette Public House 557 ft ~3 min
Coffee Peet's Coffee 699 ft ~3 min
Gas station 76 711 ft ~3 min
Grocery Safeway 662 ft ~3 min
3540 Mount Diablo Boulevard, Lafayette 94549
24/7
Restaurant Uncle Yu's 762 ft ~3 min
999 Oak Hill Road, Lafayette 94549
Grocery Whole Foods Market 887 ft ~4 min
3502 Mount Diablo Boulevard, Lafayette 94549
Mo-Su 08:00-21:00
Convenience Chevron 0.41 mi ~9 min
Gas station Chevron 0.41 mi ~9 min
Grocery Trader Joe's 0.46 mi ~10 min
3649 Mount Diablo Boulevard, Lafayette 94549
Mo-Su 08:00-21:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 | 1003514704 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 21, 2023 |
| Last updated | Feb 21, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | AMFT |
| Practice address |
986 MORAGA RD Lafayette, CA 94549 (925) 954-6229 Fax (925) 269-8052 |
| Other names |
Lydia Koerner Doing Business As |
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 | 5 | 1 | 4 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 8 | 7 | 0 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.