NPPES file of Aug 9, 2026

Frank R. Lamm, MD

Radiation Oncology Physician · Billings, MT

Frank R. Lamm, MD is a radiation oncology physician with a practice address in Billings, Montana, and NPI 1417949033, issued on Aug 19, 2005. Check the license (Montana 6850, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417949033
Name
Frank R. Lamm
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
6850 MT
M9173 ID
Self-reported in NPPES; status is on the state search
Practice location
1315 Golden Valley Cir, Billings, MT 59102
Phone
(406) 238-6290
Enumerated
Aug 19, 2005
Record last updated
Oct 25, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(406) 238-6280
Medicaid ID
807015900 ID
Medicare enrollment
Enrolled (PECOS I20041119000106); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1985
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1315 Golden Valley Cir

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carrie Barnhart, PHARMDOncology Pharmacist1902584857
  2. David Christianson, M.D.Hematology & Oncology Physician1770565871
  3. Patrick Cobb, M.D.Hematology & Oncology Physician1710968219
  4. Troy Fiddler, M.D.Hematology & Oncology Physician1730130311
  5. Aidan Guthridge, PHARMDOncology Pharmacist1609536804
  6. Erin Juedeman, RPHOncology Pharmacist1114870219

Verify Frank R. Lamm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license 6850
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Montana license search

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21% fewer Medicare Part D claims than the average radiation oncology physician in 2024

106 Medicare Part D claims for 45 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.

  1. Frank Lamm106
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl40 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.

Industry payments in 2024: $29.96

1 payment: food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Frank Lamm$29.96
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Scl Health Medical Group - Billings LLCCody, WY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Frank R. Lamm among 24 radiation oncology physician records in Montana

Frank R. Lamm, MD is one of 24 radiation oncology physician records with a practice address in Montana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 79% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1985 · median 1997 among the 19 with a school on file
  • Record last updated2019 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Montana

There are 24 radiation oncology physician records in Montana.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Trent Mihalick, M.D.Billings, MT 591021942306063
  2. Rebecca Tarlton, MDBillings, MT 591021083655393
  3. Christopher Goulet, M.D.Billings, MT 591011437137155
  4. John Schallenkamp, MDBillings, MT 591011265455018
  5. Breanne Terakedis, M.D.Billings, MT 591011609010578
  6. Ralf Kiehl, MDSidney, MT 592701760483788
  7. Robert Pfeffer, M.D.Sidney, MT 592701679563639
  8. Joseph Clyde, MDGreat Falls, MT 594051710478698

Common questions

What is Frank R. Lamm, MD's NPI number?

Frank R. Lamm, MD's National Provider Identifier (NPI) is 1417949033, issued on Aug 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Frank R. Lamm, MD located?

The NPPES record lists a practice address at 1315 Golden Valley Cir, Billings, MT, 59102. Phone: (406) 238-6290. Providers update this record themselves, so call before visiting.

How can I verify Frank R. Lamm, MD's license?

NPPES lists Montana license number 6850, 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 Frank R. Lamm, MD prescribe under Medicare Part D?

In 2024, Frank R. Lamm, MD had 106 Medicare Part D claims for 45 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.