Alison Trexler, M.D.
Alison Trexler, M.D. is a Psychiatry Physician in Encinitas, CA, registered under NPI 1003104704.
Getting there
Here is what surrounds this office in Encinitas, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 959 ft away at Parking Structure. The nearest transit stop is 0.27 mi away. If you arrive early, there is a coffee shop 0.49 mi away.
Getting here and what is nearby
Restaurant Plant Power Fast Food 370 ft ~2 min
411 Santa Fe Drive, Encinitas 92024
Mo-Su 08:00-21:00
Parking 435 ft ~2 min
Restaurant Domino's 419 ft ~2 min
415 Santa Fe Drive, Encinitas 92024
Mo-Th 10:00-24:00; Fr-Sa 10:00-01:00; Su 10:00-24:00
Transit 450 ft ~2 min
Restaurant Subway 463 ft ~2 min
417 Santa Fe Drive, Encinitas 92024
Mo 07:00-21:00; Tu 07:00-19:30; We-Fr 07:00-21:00; Sa-Su 08:00-19:00
Parking Parking 694 ft ~3 min
Grocery Vons 862 ft ~4 min
453 Santa Fe Drive, Encinitas 92024
Mo-Su 06:00-22:00
Transit 961 ft ~4 min
Parking Parking Structure 959 ft ~4 min
Transit 0.27 mi ~6 min
Gas station Shell 0.28 mi ~6 min
Gas station Santa Fe Shell 0.29 mi ~6 min
510 Santa Fe Drive, Encinitas 92024
Grocery El Nopalito 0.29 mi ~6 min
Convenience Santa Fe Liquor 0.31 mi ~7 min
Convenience 7-Eleven 0.32 mi ~7 min
Coffee Swami's Cafe 0.41 mi ~9 min
Coffee Philz Coffee 0.49 mi ~10 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 |
|---|---|---|
| A136881 | CA | Psychiatry Physician primary |
This provider holds licence A136881 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 - Psychiatry
- PAC ID
- 0042514713
- Enrollment ID
- I20160201002560
Medicare enrolment is recorded as approved under the provider type Practitioner - Psychiatry. 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 Psychiatry covers
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems. NUCC Health Care Provider Taxonomy, code 2084P0800X
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 | 1003104704 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 14, 2011 |
| Last updated | Jun 20, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
351 SANTA FE DR STE 200 Encinitas, CA 92024 (858) 279-1223 |
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 | 1 | 0 | 4 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 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.