Gerald Siemens, MD
NPI 1447505045 · Anesthesiology Physician · Missoula, MT
Enrolled with Medicare as Order and Referring Only - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Siemens, MD is a Anesthesiology Physician provider in Missoula, MT (NPI 1447505045).
Provider details
- NPI number
- 1447505045
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4702 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-19
- Last updated
- 2012-07-19
Frequently asked questions
- What is Gerald Siemens's NPI number?
- Gerald Siemens's National Provider Identifier (NPI) is 1447505045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Siemens's specialty?
- Gerald Siemens is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Siemens located?
- Gerald Siemens's practice location on file with NPPES is 5110 Clearview Way, Missoula, MT 59803-2147.
- What is Gerald Siemens's phone number?
- The practice phone number listed in the NPPES registry for Gerald Siemens is (406) 251-6733.
- Does Gerald Siemens accept Medicare?
- Gerald Siemens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Siemens's NPI active?
- Yes — Gerald Siemens's NPI (1447505045) is active in the NPPES registry as of the last update on 2012-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.