TOMMY KNOX
TOMMY KNOX is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003236399, based in Costa Mesa, CA. It is classified under Chiropractor.
Getting there
Here is what surrounds this office in Costa Mesa, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 713 ft away. The nearest transit stop is 885 ft away, served by Newport-Bay. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Transit Newport-Bay 304 ft ~2 min
Hotel Sandpiper Motel 551 ft ~3 min
1967 Newport Boulevard, Costa Mesa 92627
Parking 519 ft ~2 min
Parking 569 ft ~3 min
Transit Newport-Ford 753 ft ~3 min
Parking 713 ft ~3 min
Hotel Travelodge Costa Mesa Newport Beach Hacienda 822 ft ~4 min
1951 Newport Boulevard, Costa Mesa 92627
Hotel Holiday Inn Express Costa Mesa 835 ft ~4 min
2070 Newport Boulevard, Costa Mesa 92627
Transit Newport-Bay 885 ft ~4 min
Gas station 76 0.27 mi ~6 min
Grocery Mother's 0.33 mi ~7 min
Coffee Original Barista 0.35 mi ~7 min
1920 Harbor Blvd., Costa Mesa 92627
Mo-Fr: 07:30-15:00, Sa-Su: 08:00-15:00
Gas station Valero 0.35 mi ~8 min
2050 Harbor Boulevard, Costa Mesa 92627
Restaurant Pasta Connection 0.35 mi ~7 min
1850 Harbor Boulevard, Costa Mesa 92627
Restaurant EZ Kebab 0.36 mi ~8 min
1951 Harbor Boulevard, Costa Mesa 92627
Coffee BoBaPop 0.37 mi ~8 min
Restaurant El Pollo Loco 0.37 mi ~8 min
1941 Harbor Boulevard, Costa Mesa 92627
Mo-Su 10:00-21:00
Grocery Stater Bros. 0.38 mi ~8 min
2180 Newport Boulevard, Costa Mesa 92627
Mo-Su 06:00-23:00
Coffee The Coffee Bean 0.47 mi ~10 min
Mo-Fr 05:00-20:00; Sa 05:30-20:00; Su 05:30-19:30
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 |
|---|---|---|
| DC17231 | CA | Chiropractor primary |
This provider holds licence DC17231 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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003236399 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 24, 2014 |
| Last updated | Apr 24, 2014 |
| Status | Active |
| Practice address |
2013 NEWPORT BLVD Costa Mesa, CA 92627 (949) 631-5664 |
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 | 2 | 3 | 6 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 3 | 3 | 9 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.