Caitlin Alexander, M.D.
Caitlin Alexander, M.D. is a Pediatric Pathology Physician in Philadelphia, PA, registered under NPI 1184078321. 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 3401 CIVIC CENTER BLVD DIVISION OF PATHOLOGY, Philadelphia, PA 19104. 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 |
|---|---|---|
| MT219758 | PA | Pediatric Pathology Physician primary |
This provider holds licence MT219758 issued in PA. 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
- Order And Referring Only - Pathology
- PAC ID
- 5698067775
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Pathology. 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 Pediatric Pathology covers
A pediatric pathologist is expert in the laboratory diagnosis of diseases that occur during fetal growth, infancy and child development. The practice requires a strong foundation in general pathology and substantial understanding of normal growth and development, along with extensive knowledge of pediatric medicine. NUCC Health Care Provider Taxonomy, code 207ZP0213X
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 | |
|---|---|---|---|---|
| 207ZP0213X | Pediatric Pathology Physician Pediatric Pathology | MT219758 | PA | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1184078321 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 13, 2016 |
| Last updated | Jun 24, 2020 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
3401 CIVIC CENTER BLVD DIVISION OF PATHOLOGY Philadelphia, PA 19104 (267) 426-7949 |
| Mailing address |
1008 S 46TH ST # 201 Philadelphia, PA 19143 |
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 | 1 | 8 | 4 | 0 | 7 | 8 | 3 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 7 | 4 | 0 | 7 | 7 | 3 | 4 |
Sum = 59 · next multiple of 10 = 60 · 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.