Michael Callahan, DC
Michael Callahan, DC is a provider specialising in Chiropractor in Clermont, FL, registered under NPI 1003408576. 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 Clermont, based on OpenStreetMap data collected Sep 24, 2026. Parking is available about 0.38 mi away. The nearest transit stop is 0.20 mi away, served by Johns Lake Road.
Getting here and what is nearby
Parking 928 ft ~4 min
Transit Johns Lake Road 0.20 mi ~4 min
Grocery Walmart Supercenter 0.22 mi ~5 min
Restaurant Culver's 0.24 mi ~5 min
1431 Johns Lake Road, Clermont 34711
Mo-Su 10:00-22:00
Parking 0.28 mi ~6 min
Parking 0.38 mi ~8 min
Gas station BJ's Gas 0.42 mi ~9 min
Restaurant Panda Express 0.47 mi ~10 min
2591 South US Highway 27, Clermont 34711
Mo-Su 09:30-22:30
Restaurant IHOP 0.50 mi ~11 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 |
|---|---|---|
| CH13419 | FL | Chiropractor primary |
This provider holds licence CH13419 issued in FL. 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
- 4284040098
- Enrollment ID
- I20210302002586
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
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 | 1003408576 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 6, 2021 |
| Last updated | Feb 6, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | DC |
| Practice address |
2745 CITRUS TOWER BLVD Clermont, FL 34711 (352) 359-2936 |
| Mailing address |
1525 SOLWAY CT Apopka, FL 32712 |
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 | 4 | 0 | 8 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 0 | 7 | 5 | 5 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.