Josue Alvarez Casas, M.D.
Josue Alvarez Casas, M.D. is a Transplant Surgery Physician in Baltimore, MD, registered under NPI 1013235084. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 29 S GREENE ST STE 200, Baltimore, MD 21201. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 25MA12397400 | NJ | Transplant Surgery Physician primary |
This provider holds licence 25MA12397400 issued in NJ. 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 - General Surgery
- PAC ID
- 0042533119
Medicare enrolment is recorded as approved under the provider type Practitioner - General Surgery. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Transplant Surgery covers
A surgeon who specializes in transplant surgery. NUCC Health Care Provider Taxonomy, code 204F00000X
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 | 1013235084 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 14, 2010 |
| Last updated | Jan 22, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
29 S GREENE ST STE 200 Baltimore, MD 21201 (410) 328-5408 |
| Mailing address |
331 NEWMAN SPRINGS RD STE 220 Red Bank, NJ 07701 |
| Other identifiers |
D77920
· STATE OF MARYLAND (MD) |
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 | 1 | 3 | 2 | 3 | 5 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 2 | 3 | 4 | 3 | 1 | 0 | 7 |
Sum = 46 · next multiple of 10 = 50 · 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.