Dennis W. Maier, MD
Surgery Physician · Billings, MT
Dennis W. Maier, MD is a surgery physician with a practice address in Billings, Montana, and NPI 1497787725, issued on Jul 7, 2006. Check the license (Montana 7333, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Dennis W. Maier
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 7333 MT
Self-reported in NPPES; status is on the state search - Practice location
- 2900 12TH Ave N, Billings, MT 59101
- Phone
- (406) 238-6470
- Enumerated
- Jul 7, 2006
- Record last updated
- Aug 13, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (406) 238-6499
- Medicaid ID
- 0099671 MT
- Medicare enrollment
- Enrolled (PECOS I20100315000426); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 136 in Montana → Look up another NPI →
Also registered at 2900 12TH Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joanne Bents, NPFamily Nurse Practitioner1790727261
- George Bentzel, MDSurgery Physician1689699621
- Marion Blackman, ATCAthletic Trainer1053356105
- John Brandon, MDDiagnostic Radiology Physician1912943978
Verify Dennis W. Maier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 7333Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average surgery physician in 2024
59 Medicare Part D claims for 34 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Doxycycline Hyclate27 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: $195.71
1 payment: food and beverage; the largest payer was Kerecis Limited. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Bills Medicare through one group practice
- Scl Health Medical Group - Billings LLCBillings, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis W. Maier among 136 surgery physician records in Montana
Dennis W. Maier, MD is one of 136 surgery 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 11% of them.
- NPI issued2006 · 11% of these records are older, 49% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1985 · median 2003 among the 92 with a school on file
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Montana
There are 136 surgery physician records in Montana.
All 136 in Montana → Every provider in Billings → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- George Bentzel, MDBillings, MT 591011689699621
- Timothy Dernbach, MDBillings, MT 591011962440800
- Eric Dringman, MDBillings, MT 591011245262583
- Scott Dull, MDBillings, MT 591011174634919
- John Gregory, MDBillings, MT 591011861504847
- Paul Grmoljez, MDBillings, MT 591011831241785
- Kathryn Hatch, MDBillings, MT 591011275558215
- Terry Housinger, MDBillings, MT 591011790705234
Common questions
What is Dennis W. Maier, MD's NPI number?
Dennis W. Maier, MD's National Provider Identifier (NPI) is 1497787725, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dennis W. Maier, MD located?
The NPPES record lists a practice address at 2900 12TH Ave N, Billings, MT, 59101. Phone: (406) 238-6470. Providers update this record themselves, so call before visiting.
How can I verify Dennis W. Maier, MD's license?
NPPES lists Montana license number 7333, 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 Dennis W. Maier, MD prescribe under Medicare Part D?
In 2024, Dennis W. Maier, MD had 59 Medicare Part D claims for 34 beneficiaries; the average among surgery physician prescribers was 147. 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.