Fred Seyfried, D.C.
Fred Seyfried, D.C. is a provider specialising in Chiropractor in San Diego, CA, registered under NPI 1003328774. 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 San Diego, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 774 ft away. There is EV charging 0.44 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 987 ft away.
Getting here and what is nearby
Parking 222 ft ~1 min
Parking 465 ft ~2 min
Parking 774 ft ~3 min
Transit 987 ft ~4 min
EV charging ChargePoint 0.29 mi ~6 min
Restaurant Green Acre 0.42 mi ~9 min
EV charging ChargePoint 0.43 mi ~9 min
EV charging ChargePoint 0.44 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 |
|---|---|---|
| 33698 | CA | Chiropractor primary |
This provider holds licence 33698 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 Chiropractor covers
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems. NUCC Health Care Provider Taxonomy, code 111N00000X
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 | 1003328774 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 2, 2017 |
| Last updated | Nov 2, 2017 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | D.C. |
| Practice address |
10505 SORRENTO VALLEY ROAD, SUITE 225 San Diego, CA 92121 (619) 345-3111 |
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 | 8 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 2 | 7 | 7 | 5 |
Sum = 56 · next multiple of 10 = 60 · 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.