Marian Krogh
Marian Krogh is a Sports Physical Therapist in Aspen, CO, registered under NPI 1932891785. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 107 N 7TH ST UNIT 102, Aspen, CO 81611. 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 |
|---|---|---|
| PTL.0017359 | CO | Sports Physical Therapist primary |
| PTL.0017359 | CO | Orthopedic Physical Therapist |
| PTL.0017359 | CO | Pediatric Physical Therapist |
This provider holds licence PTL.0017359 issued in CO. 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 Sports covers
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Sports Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science, pathology and pathophysiology, medical and surgical intervention, and health and wellness, as well as rehabilitation/return to sports, management of acute injury/illness, medical and surgical consideration, injury prevention, and sports performance enhancement. NUCC Health Care Provider Taxonomy, code 2251S0007X
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 | |
|---|---|---|---|---|
| 2251S0007X | Sports Physical Therapist Sports | PTL.0017359 | CO | primary |
| 2251X0800X | Orthopedic Physical Therapist Orthopedic | PTL.0017359 | CO | |
| 2251P0200X | Pediatric Physical Therapist Pediatrics | PTL.0017359 | CO |
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 | 1932891785 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 22, 2023 |
| Last updated | May 22, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
107 N 7TH ST UNIT 102 Aspen, CO 81611 (970) 922-8226 |
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 | 9 | 3 | 2 | 8 | 9 | 1 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 6 | 2 | 7 | 9 | 2 | 7 | 7 |
Sum = 75 · next multiple of 10 = 80 · 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.