Gerald Henry Siemens, MD
Anesthesiology Physician · Missoula, MT
Gerald Henry Siemens, MD is an anesthesiology physician with a practice address in Missoula, Montana, and NPI 1447505045, issued on Jul 19, 2012. Check the license (Montana 4702, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gerald Henry Siemens
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 4702 MT
Self-reported in NPPES; status is on the state search - Practice location
- 5110 Clearview Way, Missoula, MT 59803
- Phone
- (406) 251-6733
- Enumerated
- Jul 19, 2012
- Record last updated
- Jul 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (406) 251-6733
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 227 in Montana → Look up another NPI →
Verify Gerald Henry Siemens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 4702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average anesthesiology physician in 2024
14 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gerald Henry Siemens among 227 anesthesiology physician records in Montana
Gerald Henry Siemens, MD is one of 227 anesthesiology physician records with a practice address in Montana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 73% of them.
- NPI issued2012 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 anesthesiology physician records list a practice address in Missoula
They are 63 of the 3,567 NPPES records with a practice address in Missoula, and 227 anesthesiology physician records in Montana.
All 227 in Montana → Every provider in Missoula → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Deann Birnel, M.D.Missoula, MT 598021699765602
- Molly Brazil, MDMissoula, MT 598021295354280
- Eric Fox, M.D.Missoula, MT 598021558789867
- John Harris, MDMissoula, MT 598021912420845
- Tyler Jacobsen, MDMissoula, MT 598021205412038
- Owen Mayer, MDMissoula, MT 598021770143653
- Steven Roberts, DOMissoula, MT 598041760045702
- Kelsey Walton, MDMissoula, MT 598021124655923
Common questions
What is Gerald Henry Siemens, MD's NPI number?
Gerald Henry Siemens, MD's National Provider Identifier (NPI) is 1447505045, issued on Jul 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gerald Henry Siemens, MD located?
The NPPES record lists a practice address at 5110 Clearview Way, Missoula, MT, 59803. Phone: (406) 251-6733. Providers update this record themselves, so call before visiting.
How can I verify Gerald Henry Siemens, MD's license?
NPPES lists Montana license number 4702, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gerald Henry Siemens, MD prescribe under Medicare Part D?
In 2024, Gerald Henry Siemens, MD had 14 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.