Marilyn Pena, CRTT
Marilyn Pena, CRTT is a Critical Care Certified Respiratory Therapist in Tucson, AZ, registered under NPI 1508001835. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 699 W MAGEE RD APT 5101, Tucson, AZ 85704. 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 |
|---|---|---|
| 006538 | AZ | Critical Care Certified Respiratory… primary |
| 006538 | AZ | Emergency Care Certified Respiratory… |
| 006538 | AZ | General Care Certified Respiratory… |
This provider holds licence 006538 issued in AZ. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Critical Care covers
Respiratory emergencies are commonplace in the treatment of critical care patients. Included in the assessment measurements conducted by the respiratory therapist in the critical care settings are arterial blood gas puncture and analysis, intrarterial monitoring, bedside measurements of lung mechanics, hemodynamic monitoring, and inspired and expired gas measurements. This is coupled with the initiation and management of mechanical ventilation patients. NUCC Health Care Provider Taxonomy, code 2278C0205X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2278C0205X | Critical Care Certified Respiratory Therapist Critical Care | 006538 | AZ | primary |
| 2278E0002X | Emergency Care Certified Respiratory Therapist Emergency Care | 006538 | AZ | |
| 2278G1100X | General Care Certified Respiratory Therapist General Care | 006538 | AZ |
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 | 1508001835 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 16, 2008 |
| Last updated | Dec 16, 2008 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | CRTT |
| Practice address |
699 W MAGEE RD APT 5101 Tucson, AZ 85704 (520) 300-1551 |
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 | 0 | 8 | 0 | 0 | 1 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 0 | 8 | 0 | 0 | 2 | 8 | 6 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.