German Lozano Guzman, MD
German Lozano Guzman, MD is a Pediatric Nephrology Physician in Philadelphia, PA, registered under NPI 1558660423. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is ST. CHRISTOPHER'S HOSPITAL FOR CHILDREN 160 E ERIE AVENUE, Philadelphia, PA 19134. 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 |
|---|---|---|
| P9638 | TX | Pediatric Nephrology Physician primary |
| P9638 | TX | Pediatrics Physician |
This provider holds licence P9638 issued in TX. 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 - Pediatric Medicine
- PAC ID
- 6608090675
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Texas | I20140612001737 | Practitioner - Pediatric Medicine |
| Arizona | I20221006000828 | Practitioner - Nephrology |
| Hawaii | I20241011000843 | Practitioner - Nephrology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Pediatric Medicine. There are 3 separate enrolment records across 3 states (TX, AZ, HI). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Pediatric Nephrology covers
A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy. NUCC Health Care Provider Taxonomy, code 2080P0210X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2080P0210X | Pediatric Nephrology Physician Pediatric Nephrology | P9638 | TX | primary |
| 208000000X | Pediatrics Physician | P9638 | TX |
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 | 1558660423 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 17, 2011 |
| Last updated | Jan 26, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
ST. CHRISTOPHER'S HOSPITAL FOR CHILDREN 160 E ERIE AVENUE Philadelphia, PA 19134 (215) 427-5190 Fax (215) 427-5529 |
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 | 5 | 5 | 8 | 6 | 6 | 0 | 4 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 1 | 8 | 3 | 6 | 0 | 4 | 4 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.