Lyle J. Onstad, MD
Family Medicine Physician · Great Falls, MT
Lyle J. Onstad, MD is a family medicine physician with a practice address in Great Falls, Montana, and NPI 1639105968, issued on Jun 26, 2006. Check the license (Montana MT9538, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Lyle J. Onstad
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MT9538 MT
Self-reported in NPPES; status is on the state search - Practice location
- 401 15TH Avenue South, Suite 201, Great Falls, MT 59405
- Phone
- (406) 727-2121
- Enumerated
- Jun 26, 2006
- Record last updated
- May 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (406) 727-2147
- Medicare enrollment
- Enrolled (PECOS I20050630000991); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 775 in Montana → Look up another NPI →
Verify Lyle J. Onstad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MT9538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average family medicine physician in 2024
6,183 Medicare Part D claims for 335 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 206 claims were for opioids.
Most prescribed
- Atorvastatin Calcium464 claims
- Amlodipine Besylate259 claims
- Losartan Potassium251 claims
- Lisinopril231 claims
- Tamsulosin Hcl224 claims
- Pantoprazole Sodium211 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $922.60
51 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Lyle J. Onstad among 775 family medicine physician records in Montana
Lyle J. Onstad, MD is one of 775 family medicine physician records with a practice address in Montana. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2007 among the 464 with a school on file
- Record last updated2012 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 family medicine physician records list a practice address in Great Falls
They are 35 of the 1,798 NPPES records with a practice address in Great Falls, and 775 family medicine physician records in Montana.
All 775 in Montana → Every provider in Great Falls → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- James Asthalter, DOGreat Falls, MT 594051023019908
- Marcella Barker, MDGreat Falls, MT 594051265433148
- Daniel Gordon, MDGreat Falls, MT 594051821020686
- Joseph Lee, MDGreat Falls, MT 594051326029851
- Melchisedek Margaris, MDGreat Falls, MT 594051265544183
- Michele Marler, M.D.Great Falls, MT 594051396736047
- Charles Marler, M.D.Great Falls, MT 594051407847155
- Kevin McCrea, MDGreat Falls, MT 594051326081860
Common questions
What is Lyle J. Onstad, MD's NPI number?
Lyle J. Onstad, MD's National Provider Identifier (NPI) is 1639105968, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lyle J. Onstad, MD located?
The NPPES record lists a practice address at 401 15TH Avenue South, Suite 201, Great Falls, MT, 59405. Phone: (406) 727-2121. Providers update this record themselves, so call before visiting.
How can I verify Lyle J. Onstad, MD's license?
NPPES lists Montana license number MT9538, 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 Lyle J. Onstad, MD prescribe under Medicare Part D?
In 2024, Lyle J. Onstad, MD had 6,183 Medicare Part D claims for 335 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Lyle J. Onstad, MD's MIPS final score?
The 2023 MIPS final score is 80.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.