Ann Marie Collier, MD
Neurology Physician · Billings, MT
Ann Marie Collier, MD is a neurology physician with a practice address in Billings, Montana, and NPI 1487898458, issued on Apr 21, 2009. Check the license (Montana 33458, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ann Marie Collier
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 33458 MT
ME165841 FL
97144 GA
01091446AA IN
2023048947 MO
and 4 more
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 21, 2009
- Record last updated
- Jun 15, 2026
- Medicare enrollment
- Enrolled (PECOS I20160804000563); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 54 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.
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- 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 Ann Marie Collier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 33458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average neurology physician in 2024
207 Medicare Part D claims for 66 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Lamotrigine43 claims
- Levetiracetam33 claims
- Clobazam25 claims
- Divalproex Sodium21 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: $1,335.46
7 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
10 hospitals and group practices
- Adventist Health System Georgia IncCalhoun, GA
- Freeman-Oak Hill Health SystemJoplin, MO
- Hendricks County HospitalDanville, IN
- North Oaks Medical Center LLCHammond, LA
- Northern Inyo Healthcare DistrictBishop, CA
- Novant Health Medical Group, LLCCharlotte, NC
- Riverside Health SystemWillmington, IL
- Vidant Medical Group LLCGrand Junction, CO
- Wellmont Medical Associates IncKingsport, TN
- Wyoming CountyWarsaw, NY · Critical Access Hospitals
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).
Ann Marie Collier among 54 neurology physician records in Montana
Ann Marie Collier, MD is one of 54 neurology physician records with a practice address in Montana. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 72% of them.
- NPI issued2009 · 72% of these records are older, 24% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2000 among the 37 with a school on file
- Record last updated2026 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Montana
There are 54 neurology physician records in Montana.
All 54 in Montana → Every provider in Billings → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Steven Arbogast, D.O.Billings, MT 591011962615377
- Gauhar ChaudharyBillings, MT 591011477873016
- Javier Echeverri, M.D.Billings, MT 591011932169232
- Kris French, M.D.Billings, MT 591011841433034
- Mary Gaddy, MDBillings, MT 591011982716551
- Jeffrey Mosser, M.D.Billings, MT 591011891778148
- Dennis Obrien, MDBillings, MT 591011811981699
- Dale Peterson, MDBillings, MT 591011093815672
Common questions
What is Ann Marie Collier, MD's NPI number?
Ann Marie Collier, MD's National Provider Identifier (NPI) is 1487898458, issued on Apr 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ann Marie Collier, 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 Ann Marie Collier, MD's license?
NPPES lists Montana license number 33458, 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 Ann Marie Collier, MD prescribe under Medicare Part D?
In 2024, Ann Marie Collier, MD had 207 Medicare Part D claims for 66 beneficiaries; the average among neurology physician prescribers was 1,370. 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.