Casey Johnson, MD
Casey Johnson, MD is an Anesthesiology Physician in Mobile, AL, registered under NPI 1003445271.
Getting there
Here is what surrounds this office in Mobile, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 352 ft away. The nearest transit stop is 0.25 mi away, served by Mobile Infirmary Blvd SB Near Springhill. A pharmacy sits 0.32 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking Parking Lot 2 180 ft ~1 min
Parking Parking Garage 212 ft ~1 min
3 Mobile Infirmary Circle
Parking 352 ft ~2 min
Transit Mobile Infirmary 700 ft ~3 min
Transit Mobile Infirmary Blvd past Springhill 0.23 mi ~5 min
Transit Mobile Infirmary Blvd SB Near Springhill 0.25 mi ~6 min
Pharmacy Walgreens 0.32 mi ~7 min
1731 Springhill Avenue, Mobile 36604
Restaurant Dunkin' 0.33 mi ~7 min
Restaurant Jimmy John's 0.33 mi ~7 min
Gas station Texaco 0.50 mi ~10 min
1507 Springhill Avenue, Mobile 36604
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 |
|---|---|---|
| MD.42987 | AL | Anesthesiology Physician primary |
This provider holds licence MD.42987 issued in AL. 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 - Anesthesiology
- PAC ID
- 5193155364
- Enrollment ID
- I20240808001709
Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. 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 Anesthesiology covers
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery. NUCC Health Care Provider Taxonomy, code 207L00000X
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 | 1003445271 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 8, 2020 |
| Last updated | Aug 12, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
5 MOBILE INFIRMARY CIR Mobile, AL 36607 (251) 435-2400 |
| Mailing address |
8648 DAINTREE CT Daphne, AL 36526 |
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 | 4 | 5 | 2 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 1 | 2 | 5 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.