Irene S. Lohkamp, MD
Geriatric Medicine (Family Medicine) Physician · Billings, MT
Irene S. Lohkamp, MD is a geriatric medicine (family medicine) physician with a practice address in Billings, Montana, and NPI 1891759197, issued on Apr 13, 2006. Check the license (Montana 12538, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Irene S. Lohkamp
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License numbers
- 12538 MT
0101041798 VA
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- Apr 13, 2006
- Record last updated
- Feb 23, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 5614767 VA
- Medicare enrollment
- Enrolled (PECOS I20110104000694); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
7 nearest geriatric medicine (family medicine) physician records → All 8 in Montana → Look up another NPI →
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kylie Abeson, MD, MPHPediatrics Physician1699334987
- Juan Adams, M.D.Allergy & Immunology Physician1144512096
- Daniel AlmeStudent in an Organized Health Care Education/Training Program1477349165
- Luis Alvarez, MDClinical Cardiac Electrophysiology Physician1417951922
- Annalee Anderson, MA, CCC-SLPSpeech-Language Pathologist1083047088
- Bijan Andrade, DPMFoot & Ankle Surgery Podiatrist1891059556
Verify Irene S. Lohkamp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 12538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
6,024 Medicare Part D claims for 372 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Donepezil Hcl515 claims
- Memantine Hcl431 claims
- Escitalopram Oxalate385 claims
- Levothyroxine Sodium346 claims
- Sertraline Hcl345 claims
- Atorvastatin Calcium247 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.
One hospital affiliation
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Geriatric Medicine (Family Medicine) Physician providers in Montana
There are 8 geriatric medicine (family medicine) physician records in Montana.
All 8 in Montana → Every provider in Billings → Geriatric Medicine (Family Medicine) Physician nationwide →
The 7 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Rose PicchiGreat Falls, MT 594011568043362
- Kyra Carpenter, D.O.Great Falls, MT 594051639462294
- James Meyer, M.D.Fort Harrison, MT 596361952403313
- Melissa Vance, MDBozeman, MT 597151902300486
- Roman Hendrickson, MDSheridan, MT 597491205823135
- R Irwin, M. D.Polson, MT 598601528093382
- Karen Leggett, D.O.Kalispell, MT 599011093883357
Common questions
What is Irene S. Lohkamp, MD's NPI number?
Irene S. Lohkamp, MD's National Provider Identifier (NPI) is 1891759197, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irene S. Lohkamp, MD located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Irene S. Lohkamp, MD's license?
NPPES lists Montana license number 12538, 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 Irene S. Lohkamp, MD prescribe under Medicare Part D?
In 2024, Irene S. Lohkamp, MD had 6,024 Medicare Part D claims for 372 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.