Marilyn Blumenstein, CRNP
Marilyn Blumenstein, CRNP is a Pediatric Nurse Practitioner in Philadelphia, PA, registered under NPI 1093986739.
Getting there
The practice address on file is 34TH STREET AND CIVIC CENTER BLVD. 4TH FLOOR CHILDREN'S SEASHORE HOUSE, 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 |
|---|---|---|
| SP009656 | PA | Pediatric Nurse Practitioner primary |
This provider holds licence SP009656 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
- Practitioner - Nurse Practitioner
- PAC ID
- 2961812755
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 Pediatrics covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0200X
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 | 1093986739 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 21, 2008 |
| Last updated | Mar 21, 2008 |
| Status | Active |
| Sole proprietor | No |
| Credential | CRNP |
| Practice address |
34TH STREET AND CIVIC CENTER BLVD. 4TH FLOOR CHILDREN'S SEASHORE HOUSE Philadelphia, PA 19104 (215) 590-3058 Fax (267) 426-2275 |
| Mailing address |
34TH STREET AND CIVIC CENTER BLVD 4TH FLOOR CHILDREN'S SEASHORE HOUSE Philadelphia, PA 19104 |
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 | 9 | 3 | 9 | 8 | 6 | 7 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 9 | 3 | 9 | 8 | 3 | 7 | 6 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
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.