Ian Ahearn, D.C.
Ian Ahearn, D.C. is a provider specialising in Chiropractor in San Diego, CA, registered under NPI 1003113259. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 6, 2026. Parking is available about 712 ft away at Lot A. The nearest transit stop is 609 ft away. A pharmacy sits 0.44 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 641 ft away.
Getting here and what is nearby
Convenience ampm 140 ft ~1 min
2940 Lytton Street, San Diego 92110
Gas station Arco 173 ft ~1 min
2940 Lytton Street, San Diego 92110
Transit 187 ft ~1 min
Parking 230 ft ~1 min
Transit 428 ft ~2 min
Transit 609 ft ~3 min
Coffee Acento Coffee Roasters 641 ft ~3 min
Parking 647 ft ~3 min
Parking Lot A 712 ft ~3 min
Restaurant Angry Petes Pizza Point Loma 708 ft ~3 min
2734 Lytton St
We-Sa 17:00-23:00; Tu, Su 17:00-21:00
Restaurant Dirty Birds 834 ft ~4 min
Hotel Americas Best Value Inn Loma Lodge 0.20 mi ~4 min
3202 Rosecrans Street, San Diego 92110
Restaurant Corvette Diner 0.21 mi ~5 min
2965 Historic Decatur Road, San Diego
Mo-Th 11:30-21:00; Fr 11:30-23:00; Sa 11:00-23:30; Su 11:00-21:00; Dec 25 off; Dec 24 11:30-18:00; Nov Th[4] off
Hotel Howard Johnson Inn San Diego Sea World 0.34 mi ~7 min
3330 Rosecrans Street, San Diego 92110
Grocery Sprouts Farmers Market 0.36 mi ~8 min
Pharmacy CVS Pharmacy 0.37 mi ~8 min
Hotel Bay Inn & Suites 0.39 mi ~8 min
3325 Midway Drive, San Diego 92110
Convenience 7-Eleven 0.40 mi ~9 min
Gas station Shell 0.42 mi ~9 min
Pharmacy Walgreens 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 |
|---|---|---|
| 32020 | CA | Sports Physician Chiropractor |
| 32020 | CA | Chiropractor primary |
This provider holds licence 32020 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 - Chiropractic
- PAC ID
- 3274766191
- Enrollment ID
- I20140430001168
Medicare enrolment is recorded as approved under the provider type Practitioner - Chiropractic. 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 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
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 111NS0005X | Sports Physician Chiropractor Sports Physician | 32020 | CA | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 111N00000X | Chiropractor | 32020 | CA | primary |
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 | 1003113259 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 24, 2011 |
| Last updated | Apr 19, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | D.C. |
| Practice address |
3065 ROSECRANS PL STE 108 San Diego, CA 92110 (619) 640-0321 Fax (619) 435-3158 |
| Other identifiers |
32020
· Other (CA) |
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 | 1 | 3 | 2 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 1 | 6 | 2 | 1 |
Sum = 41 · next multiple of 10 = 50 · 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.