Mark Ibsen, MD
NPI 1255378824 · Emergency Medical Services (Emergency Medicine) Physician · Helena, MT
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Ibsen, MD is a Emergency Medical Services (Emergency Medicine) Physician provider in Helena, MT (NPI 1255378824).
Provider details
- NPI number
- 1255378824
- Entity type
- Individual
- Primary specialty
- Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 7378 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 174 | 17 |
| Fentanyl | 42 | — |
| Diazepam | 31 | — |
| Clonidine Hcl | 25 | — |
| Promethazine Hcl | 23 | — |
| Syringe and Needle,insulin,1mlbrand: Insulin Syringe | 19 | — |
| Hydromorphone Hcl | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-01
- Last updated
- 2012-10-03
Frequently asked questions
- What is Mark Ibsen's NPI number?
- Mark Ibsen's National Provider Identifier (NPI) is 1255378824, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ibsen's specialty?
- Mark Ibsen is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ibsen located?
- Mark Ibsen's practice location on file with NPPES is 39 Neill Ave, Helena, MT 59601-3330.
- What is Mark Ibsen's phone number?
- The practice phone number listed in the NPPES registry for Mark Ibsen is (406) 513-1052.
- Does Mark Ibsen accept Medicare?
- Mark Ibsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Ibsen's NPI active?
- Yes — Mark Ibsen's NPI (1255378824) is active in the NPPES registry as of the last update on 2012-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.